City break in Guam
Four or five days of maps, metro rides and restaurant hunting. Hotel and cafe Wi-Fi fill the gaps, so 3 GB is usually enough.
Lempart Flex · 3 GB30 days€8.93Best eSIM for Guam in 2026
We compared 539 plans from 17 providers on price, data and how long they last. Here's what to buy for a trip to Guam.
In short
- From €3.56: Lempart Flex's 1 GB a day for 1 day is the cheapest plan we list.
- €1.24 per GB is the best value, with Lempart Flex's 50 GB for 3 days.
- Data only: no plan here includes a phone number. Use WhatsApp or similar apps for calls.
- Install before you fly. Set the eSIM up at home on Wi-Fi and switch it on when you land.
Prices checked 2 hours ago
- Cheapest 5 GB plan
- €3.56
- Typical price per GB
- €3.89
- Mobile networks
- 2
- Providers compared
- 17
Our picks for Guam
Ranked from today's prices. They change when providers change theirs.
Most data for your money(Best value)
10 GB for 30 days
Enough for maps and messages every day.
- Docomo
- 5G
- Hotspot
€25.92€2.59 / GB · best rate
Provider: NomadOur rating: 3.9 out of 5
View deal: Nomad Guam 10 GB 30 daysJust getting connected(Cheapest)
1 GB a day for 1 day
Slows down after 1 GB a day.
€4.50Lowest total price
Provider: mysim24Our rating: 3.6 out of 5
View deal: mysim24 Guam · Unlimited · 1 day
What eSIM data costs in Guam
Data gets cheaper as plans get bigger: a typical 1 GB plan in Guam costs €8.26 per GB, a 50 GB plan €1.36. If you're unsure, size up rather than top up later.
Unlimited plans start at €3.56. They only pay off if you share a hotspot with a laptop or stream every day.
Which eSIM for which trip
Three common ways people travel in Guam, and the plan that suits each.
A week at the beach
Hotel Wi-Fi covers most of the day. You need data for the beach, day trips and transfers: 5 GB covers a week for most people.
Lempart Flex · 5 GB30 days€12.50Two weeks on the road
Navigation, bookings on the go and photos sent home every day. Go for 10 GB or more, and check the plan lasts the whole trip.
Lempart Flex · 10 GB15 days€19.20Compare all plans
100 plans, prices in euros.
| Provider | Our rating | Data | Days | Network | Hotspot | Per GB | Price | Deal |
|---|---|---|---|---|---|---|---|---|
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 50 GB · 3 days | Our rating: 3.2 out of 5 | 50 GB | 3 | Not stated | Yes | €1.24 / GB | €62.08 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 50 GB · 5 days | Our rating: 3.2 out of 5 | 50 GB | 5 | Not stated | Yes | €1.29 / GB | €64.32 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 50 GB · 7 days | Our rating: 3.2 out of 5 | 50 GB | 7 | Not stated | Yes | €1.34 / GB | €67.00 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 50 GB · 10 days | Our rating: 3.2 out of 5 | 50 GB | 10 | Not stated | Yes | €1.38 / GB | €69.23 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 50 GB · 15 days | Our rating: 3.2 out of 5 | 50 GB | 15 | Not stated | Yes | €1.43 / GB | €71.46 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 50 GB · 30 days | Our rating: 3.2 out of 5 | 50 GB | 30 | Not stated | Yes | €1.48 / GB | €74.14 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 20 GB · 5 days | Our rating: 3.2 out of 5 | 20 GB | 5 | Not stated | Yes | €1.50 / GB | €29.92 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 20 GB · 7 days | Our rating: 3.2 out of 5 | 20 GB | 7 | Not stated | Yes | €1.56 / GB | €31.26 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 30 GB · 30 days | Our rating: 3.2 out of 5 | 30 GB | 30 | Not stated | Yes | €1.59 / GB | €47.79 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 20 GB · 10 days | Our rating: 3.2 out of 5 | 20 GB | 10 | Not stated | Yes | €1.61 / GB | €32.15 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 10 GB · 3 days | Our rating: 3.2 out of 5 | 10 GB | 3 | Not stated | Yes | €1.70 / GB | €16.97 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 20 GB · 30 days | Our rating: 3.2 out of 5 | 20 GB | 30 | Not stated | Yes | €1.72 / GB | €34.39 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 10 GB · 5 days | Our rating: 3.2 out of 5 | 10 GB | 5 | Not stated | Yes | €1.74 / GB | €17.41 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 10 GB · 7 days | Our rating: 3.2 out of 5 | 10 GB | 7 | Not stated | Yes | €1.83 / GB | €18.31 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 10 GB · 10 days | Our rating: 3.2 out of 5 | 10 GB | 10 | Not stated | Yes | €1.88 / GB | €18.75 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 10 GB · 15 days | Our rating: 3.2 out of 5 | 10 GB | 15 | Not stated | Yes | €1.92 / GB | €19.20 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 10 GB · 30 days | Our rating: 3.2 out of 5 | 10 GB | 30 | Not stated | Yes | €1.97 / GB | €19.65 | View deal: Lempart Flex Guam · IP HK · no top-up |
| NomadGuam 10 GB 30 daysOur rating: 3.9 out of 5 · 10 GB · 30 days · Docomo | Our rating: 3.9 out of 5 | 10 GB | 30 | Docomo | Yes | €2.59 / GB | €25.92 | View deal: Nomad Guam 10 GB 30 days |
| Wanderly eSIMGuam 20GB 30DaysOur rating: 4.1 out of 5 · 20 GB · 30 days | Our rating: 4.1 out of 5 | 20 GB | 30 | Not stated | Not stated | €2.64 / GB | €52.70 | View deal: Wanderly eSIM Guam 20GB 30Days |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 5 GB · 30 days | Our rating: 3.2 out of 5 | 5 GB | 30 | Not stated | Yes | €2.50 / GB | €12.50 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 3 GB · 3 days | Our rating: 3.2 out of 5 | 3 GB | 3 | Not stated | Yes | €2.53 / GB | €7.59 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Wanderly eSIMGuam 10GB 30DaysOur rating: 4.1 out of 5 · 10 GB · 30 days | Our rating: 4.1 out of 5 | 10 GB | 30 | Not stated | Not stated | €2.86 / GB | €28.58 | View deal: Wanderly eSIM Guam 10GB 30Days |
| mysim24Guam · 20 GB · 30 daysOur rating: 3.6 out of 5 · 20 GB · 30 days | Our rating: 3.6 out of 5 | 20 GB | 30 | Not stated | Not stated | €2.78 / GB | €55.50 | View deal: mysim24 Guam · 20 GB · 30 days |
| Wanderly eSIMGuam 5GB 30DaysOur rating: 4.1 out of 5 · 5 GB · 30 days | Our rating: 4.1 out of 5 | 5 GB | 30 | Not stated | Not stated | €3.04 / GB | €15.18 | View deal: Wanderly eSIM Guam 5GB 30Days |
| Lempart FlexGuam · IP SGNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 20 GB · 30 days | Our rating: 3.2 out of 5 | 20 GB | 30 | Not stated | Yes | €2.95 / GB | €58.96 | View deal: Lempart Flex Guam · IP SG |
| Lempart FlexGuam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 3 GB · 30 days | Our rating: 3.2 out of 5 | 3 GB | 30 | Not stated | Yes | €2.98 / GB | €8.93 | View deal: Lempart Flex Guam · IP HK · no top-up |
| Lempart FlexGuam · IP PL/UK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 6 GB · 10 days | Our rating: 3.2 out of 5 | 6 GB | 10 | Not stated | Yes | €2.98 / GB | €17.86 | View deal: Lempart Flex Guam · IP PL/UK · no top-up |
| RoamtellGuam 5GB/DayNew · online since Dec 2025. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.6 out of 5 · 5 GB · 1 day | Our rating: 2.6 out of 5 | 5 GB | 1 | Not stated | Not stated | €2.84 / GB | €14.21 | View deal: Roamtell Guam 5GB/Day |
| RoamtellGuam 10GB/DayNew · online since Dec 2025. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.6 out of 5 · 10 GB · 1 day | Our rating: 2.6 out of 5 | 10 GB | 1 | Not stated | Not stated | €2.85 / GB | €28.50 | View deal: Roamtell Guam 10GB/Day |
| RoamtellGuam 20GB 30DaysNew · online since Dec 2025. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.6 out of 5 · 20 GB · 30 days | Our rating: 2.6 out of 5 | 20 GB | 30 | Not stated | Not stated | €2.99 / GB | €59.77 | View deal: Roamtell Guam 20GB 30Days |
| Lempart FlexGuam · IP SGNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 10 GB · 30 days | Our rating: 3.2 out of 5 | 10 GB | 30 | Not stated | Yes | €3.17 / GB | €31.71 | View deal: Lempart Flex Guam · IP SG |
| RoamtellGuam 5GB 30DaysNew · online since Dec 2025. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.6 out of 5 · 5 GB · 30 days | Our rating: 2.6 out of 5 | 5 GB | 30 | Not stated | Not stated | €3.02 / GB | €15.10 | View deal: Roamtell Guam 5GB 30Days |
| mysim24Guam · 10 GB · 30 daysOur rating: 3.6 out of 5 · 10 GB · 30 days | Our rating: 3.6 out of 5 | 10 GB | 30 | Not stated | Not stated | €3.30 / GB | €32.99 | View deal: mysim24 Guam · 10 GB · 30 days |
| NomadGuam 5 GB 30 daysOur rating: 3.9 out of 5 · 5 GB · 30 days · Docomo | Our rating: 3.9 out of 5 | 5 GB | 30 | Docomo | Yes | €3.40 / GB | €16.98 | View deal: Nomad Guam 5 GB 30 days |
| Lempart FlexGuam · IP SGNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 5 GB · 30 days | Our rating: 3.2 out of 5 | 5 GB | 30 | Not stated | Yes | €3.21 / GB | €16.07 | View deal: Lempart Flex Guam · IP SG |
| Wanderly eSIMGuam 3GB 15DaysOur rating: 4.1 out of 5 · 3 GB · 15 days | Our rating: 4.1 out of 5 | 3 GB | 15 | Not stated | Not stated | €3.57 / GB | €10.71 | View deal: Wanderly eSIM Guam 3GB 15Days |
| RoamtellGuam 10GB 30DaysNew · online since Dec 2025. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.6 out of 5 · 10 GB · 30 days | Our rating: 2.6 out of 5 | 10 GB | 30 | Not stated | Not stated | €3.21 / GB | €32.07 | View deal: Roamtell Guam 10GB 30Days |
| RoamtellGuam 3GB 30DaysNew · online since Dec 2025. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.6 out of 5 · 3 GB · 30 days | Our rating: 2.6 out of 5 | 3 GB | 30 | Not stated | Not stated | €3.25 / GB | €9.74 | View deal: Roamtell Guam 3GB 30Days |
| RoamtellGuam 3GB 15DaysNew · online since Dec 2025. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.6 out of 5 · 3 GB · 15 days | Our rating: 2.6 out of 5 | 3 GB | 15 | Not stated | Not stated | €3.25 / GB | €9.74 | View deal: Roamtell Guam 3GB 15Days |
| Inbox eSIMGuam 20 GB / 30 daysNew · online since Aug 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.5 out of 5 · 20 GB · 30 days | Our rating: 2.5 out of 5 | 20 GB | 30 | Not stated | Yes | €3.35 / GB | €66.92 | View deal: Inbox eSIM Guam 20 GB / 30 days |
| Lempart FlexGuam · IP SGNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 3 GB · 30 days | Our rating: 3.2 out of 5 | 3 GB | 30 | Not stated | Yes | €3.57 / GB | €10.71 | View deal: Lempart Flex Guam · IP SG |
| Wanderly eSIMGuam 3GB 30DaysOur rating: 4.1 out of 5 · 3 GB · 30 days | Our rating: 4.1 out of 5 | 3 GB | 30 | Not stated | Not stated | €3.87 / GB | €11.61 | View deal: Wanderly eSIM Guam 3GB 30Days |
| RoamicGuam 20 GB 30 daysOur rating: 3.9 out of 5 · 20 GB · 30 days | Our rating: 3.9 out of 5 | 20 GB | 30 | Not stated | Yes | €3.90 / GB | €77.99 | View deal: Roamic Guam 20 GB 30 days |
| mysim24Guam · 5 GB · 30 daysOur rating: 3.6 out of 5 · 5 GB · 30 days | Our rating: 3.6 out of 5 | 5 GB | 30 | Not stated | Not stated | €3.80 / GB | €18.99 | View deal: mysim24 Guam · 5 GB · 30 days |
| mysim24Guam · 3 GB · 15 daysOur rating: 3.6 out of 5 · 3 GB · 15 days | Our rating: 3.6 out of 5 | 3 GB | 15 | Not stated | Not stated | €3.83 / GB | €11.50 | View deal: mysim24 Guam · 3 GB · 15 days |
| RoamicGuam 10 GB 30 daysOur rating: 3.9 out of 5 · 10 GB · 30 days | Our rating: 3.9 out of 5 | 10 GB | 30 | Not stated | Yes | €4.10 / GB | €40.99 | View deal: Roamic Guam 10 GB 30 days |
| Inbox eSIMGuam 10 GB / 30 daysNew · online since Aug 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.5 out of 5 · 10 GB · 30 days | Our rating: 2.5 out of 5 | 10 GB | 30 | Not stated | Yes | €3.65 / GB | €36.54 | View deal: Inbox eSIM Guam 10 GB / 30 days |
| Inbox eSIMGuam 5 GB / 30 daysNew · online since Aug 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.5 out of 5 · 5 GB · 30 days | Our rating: 2.5 out of 5 | 5 GB | 30 | Not stated | Yes | €3.73 / GB | €18.67 | View deal: Inbox eSIM Guam 5 GB / 30 days |
| RoamtellGuam 3GB/Day FUP1MbpsNew · online since Dec 2025. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.6 out of 5 · 3 GB · 1 day | Our rating: 2.6 out of 5 | 3 GB | 1 | Not stated | Not stated | €3.84 / GB | €11.53 | View deal: Roamtell Guam 3GB/Day FUP1Mbps |
| Inbox eSIMGuam 3 GB / 30 daysNew · online since Aug 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.5 out of 5 · 3 GB · 30 days | Our rating: 2.5 out of 5 | 3 GB | 30 | Not stated | Yes | €3.84 / GB | €11.53 | View deal: Inbox eSIM Guam 3 GB / 30 days |
| NomadGuam 3 GB 30 daysOur rating: 3.9 out of 5 · 3 GB · 30 days · Docomo | Our rating: 3.9 out of 5 | 3 GB | 30 | Docomo | Yes | €4.47 / GB | €13.41 | View deal: Nomad Guam 3 GB 30 days |
| TripoSIMGuam — 20 GB / 30 daysNew · online since Feb 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.8 out of 5 · 20 GB · 30 days | Our rating: 2.8 out of 5 | 20 GB | 30 | Not stated | Yes | €4.15 / GB | €82.96 | View deal: TripoSIM Guam — 20 GB / 30 days |
| RoamicGuam 5 GB 21 daysOur rating: 3.9 out of 5 · 5 GB · 21 days | Our rating: 3.9 out of 5 | 5 GB | 21 | Not stated | Yes | €4.60 / GB | €22.99 | View deal: Roamic Guam 5 GB 21 days |
| TripoSIMGuam 3GB 30DaysNew · online since Feb 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.8 out of 5 · 3 GB · 30 days | Our rating: 2.8 out of 5 | 3 GB | 30 | Not stated | Yes | €4.22 / GB | €12.66 | View deal: TripoSIM Guam 3GB 30Days |
| RoamicGuam 3 GB 15 daysOur rating: 3.9 out of 5 · 3 GB · 15 days | Our rating: 3.9 out of 5 | 3 GB | 15 | Not stated | Yes | €4.66 / GB | €13.99 | View deal: Roamic Guam 3 GB 15 days |
| mysim24Guam · 3 GB · 30 daysOur rating: 3.6 out of 5 · 3 GB · 30 days | Our rating: 3.6 out of 5 | 3 GB | 30 | Not stated | Not stated | €4.66 / GB | €13.99 | View deal: mysim24 Guam · 3 GB · 30 days |
| TripoSIMGuam — 5 GB / 30 daysNew · online since Feb 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.8 out of 5 · 5 GB · 30 days | Our rating: 2.8 out of 5 | 5 GB | 30 | Not stated | Yes | €4.48 / GB | €22.42 | View deal: TripoSIM Guam — 5 GB / 30 days |
| Inbox eSIMGuam 1 GB / 7 daysNew · online since Aug 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.5 out of 5 · 1 GB · 7 days | Our rating: 2.5 out of 5 | 1 GB | 7 | Not stated | Yes | €4.38 / GB | €4.38 | View deal: Inbox eSIM Guam 1 GB / 7 days |
| Buy UK eSIMGuam 20GB 30DaysNew · online since Dec 2025. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 1.9 out of 5 · 20 GB · 30 days | Our rating: 1.9 out of 5 | 20 GB | 30 | Not stated | Not stated | €4.24 / GB | €84.87 | View deal: Buy UK eSIM Guam 20GB 30Days |
| YesimGuam 10 GB 30 daysOur rating: 3.6 out of 5 · 10 GB · 30 days · Docomo | Our rating: 3.6 out of 5 | 10 GB | 30 | Docomo | Yes | €5.00 / GB | €50.00 | View deal: Yesim Guam 10 GB 30 days |
| BidaiesimGuam 20 GB · 30 daysNew · online since Jul 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.1 out of 5 · 20 GB · 30 days | Our rating: 2.1 out of 5 | 20 GB | 30 | Not stated | Not stated | €4.45 / GB | €89.00 | View deal: Bidaiesim Guam 20 GB · 30 days |
| Lempart FlexGuam · IP SGNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 1 GB · 7 days | Our rating: 3.2 out of 5 | 1 GB | 7 | Not stated | Yes | €4.90 / GB | €4.90 | View deal: Lempart Flex Guam · IP SG |
| Wanderly eSIMGuam 1GB 7DaysOur rating: 4.1 out of 5 · 1 GB · 7 days | Our rating: 4.1 out of 5 | 1 GB | 7 | Not stated | Not stated | €5.35 / GB | €5.35 | View deal: Wanderly eSIM Guam 1GB 7Days |
| BidaiesimGuam 10 GB · 30 daysNew · online since Jul 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.1 out of 5 · 10 GB · 30 days | Our rating: 2.1 out of 5 | 10 GB | 30 | Not stated | Not stated | €4.75 / GB | €47.50 | View deal: Bidaiesim Guam 10 GB · 30 days |
| BidaiesimGuam 5 GB · 30 daysNew · online since Jul 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.1 out of 5 · 5 GB · 30 days | Our rating: 2.1 out of 5 | 5 GB | 30 | Not stated | Not stated | €4.80 / GB | €24.00 | View deal: Bidaiesim Guam 5 GB · 30 days |
| RoamtellGuam 1GB/DayNew · online since Dec 2025. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.6 out of 5 · 1 GB · 1 day | Our rating: 2.6 out of 5 | 1 GB | 1 | Not stated | Not stated | €5.29 / GB | €5.29 | View deal: Roamtell Guam 1GB/Day |
| TripoSIMGuam — 1 GB / 7 daysNew · online since Feb 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.8 out of 5 · 1 GB · 7 days | Our rating: 2.8 out of 5 | 1 GB | 7 | Not stated | Yes | €5.38 / GB | €5.38 | View deal: TripoSIM Guam — 1 GB / 7 days |
| RoamicGuam 1 GB 7 daysOur rating: 3.9 out of 5 · 1 GB · 7 days | Our rating: 3.9 out of 5 | 1 GB | 7 | Not stated | Yes | €5.99 / GB | €5.99 | View deal: Roamic Guam 1 GB 7 days |
| BidaiesimGuam 3 GB · 30 daysNew · online since Jul 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.1 out of 5 · 3 GB · 30 days | Our rating: 2.1 out of 5 | 3 GB | 30 | Not stated | Not stated | €5.17 / GB | €15.50 | View deal: Bidaiesim Guam 3 GB · 30 days |
| Lempart FlexGuam · IP UK/EU · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 15 GB · 30 days | Our rating: 3.2 out of 5 | 15 GB | 30 | Not stated | Yes | €5.69 / GB | €85.31 | View deal: Lempart Flex Guam · IP UK/EU · no top-up |
| YesimGuam 5 GB 30 daysOur rating: 3.6 out of 5 · 5 GB · 30 days · Docomo | Our rating: 3.6 out of 5 | 5 GB | 30 | Docomo | Yes | €6.00 / GB | €30.00 | View deal: Yesim Guam 5 GB 30 days |
| BidaiesimGuam 1 GB · 7 daysNew · online since Jul 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 2.1 out of 5 · 1 GB · 7 days | Our rating: 2.1 out of 5 | 1 GB | 7 | Not stated | Not stated | €5.50 / GB | €5.50 | View deal: Bidaiesim Guam 1 GB · 7 days |
| YesimGuam 3 GB 30 daysOur rating: 3.6 out of 5 · 3 GB · 30 days · Docomo | Our rating: 3.6 out of 5 | 3 GB | 30 | Docomo | Yes | €6.67 / GB | €20.00 | View deal: Yesim Guam 3 GB 30 days |
| Buy UK eSIMGuam 10GB 30DaysNew · online since Dec 2025. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 1.9 out of 5 · 10 GB · 30 days | Our rating: 1.9 out of 5 | 10 GB | 30 | Not stated | Not stated | €5.81 / GB | €58.06 | View deal: Buy UK eSIM Guam 10GB 30Days |
| EsoimGuam eSIM 20 GB (30 Days)Our rating: 2.9 out of 5 · 20 GB · 30 days | Our rating: 2.9 out of 5 | 20 GB | 30 | Not stated | Yes | €6.80 / GB | €135.99 | View deal: Esoim Guam eSIM 20 GB (30 Days) |
| NomadoGuam - 20GB for 30 daysOur rating: 2.4 out of 5 · 20 GB · 30 days | Our rating: 2.4 out of 5 | 20 GB | 30 | Not stated | Not stated | €6.57 / GB | €131.32 | View deal: Nomado Guam - 20GB for 30 days |
| Lempart FlexGuam · IP UK/EU · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 5 GB · 15 days | Our rating: 3.2 out of 5 | 5 GB | 15 | Not stated | Yes | €7.09 / GB | €35.47 | View deal: Lempart Flex Guam · IP UK/EU · no top-up |
| Buy UK eSIMGuam 5GB 30DaysNew · online since Dec 2025. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 1.9 out of 5 · 5 GB · 30 days | Our rating: 1.9 out of 5 | 5 GB | 30 | Not stated | Not stated | €6.61 / GB | €33.05 | View deal: Buy UK eSIM Guam 5GB 30Days |
| EsoimGuam eSIM 10 GB (30 Days)Our rating: 2.9 out of 5 · 10 GB · 30 days | Our rating: 2.9 out of 5 | 10 GB | 30 | Not stated | Yes | €7.40 / GB | €73.99 | View deal: Esoim Guam eSIM 10 GB (30 Days) |
| Lempart FlexGuam · IP UK/EU · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 3 GB · 7 days | Our rating: 3.2 out of 5 | 3 GB | 7 | Not stated | Yes | €7.63 / GB | €22.90 | View deal: Lempart Flex Guam · IP UK/EU · no top-up |
| NomadoGuam - 10GB for 30 daysOur rating: 2.4 out of 5 · 10 GB · 30 days | Our rating: 2.4 out of 5 | 10 GB | 30 | Not stated | Not stated | €7.33 / GB | €73.25 | View deal: Nomado Guam - 10GB for 30 days |
| Buy UK eSIMGuam 3GB 30DaysNew · online since Dec 2025. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 1.9 out of 5 · 3 GB · 30 days | Our rating: 1.9 out of 5 | 3 GB | 30 | Not stated | Not stated | €7.44 / GB | €22.33 | View deal: Buy UK eSIM Guam 3GB 30Days |
| EsoimGuam eSIM 5 GB (30 Days)Our rating: 2.9 out of 5 · 5 GB · 30 days | Our rating: 2.9 out of 5 | 5 GB | 30 | Not stated | Yes | €8.10 / GB | €40.49 | View deal: Esoim Guam eSIM 5 GB (30 Days) |
| EsoimGuam eSIM 3 GB (15 Days)Our rating: 2.9 out of 5 · 3 GB · 15 days | Our rating: 2.9 out of 5 | 3 GB | 15 | Not stated | Yes | €8.16 / GB | €24.49 | View deal: Esoim Guam eSIM 3 GB (15 Days) |
| Lempart FlexGuam · IP UK/EU · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 1 GB · 7 days | Our rating: 3.2 out of 5 | 1 GB | 7 | Not stated | Yes | €8.48 / GB | €8.48 | View deal: Lempart Flex Guam · IP UK/EU · no top-up |
| NomadoGuam - 5GB for 30 daysOur rating: 2.4 out of 5 · 5 GB · 30 days | Our rating: 2.4 out of 5 | 5 GB | 30 | Not stated | Not stated | €8.04 / GB | €40.19 | View deal: Nomado Guam - 5GB for 30 days |
| EsoimGuam eSIM 3 GB (30 Days)Our rating: 2.9 out of 5 · 3 GB · 30 days | Our rating: 2.9 out of 5 | 3 GB | 30 | Not stated | Yes | €8.66 / GB | €25.99 | View deal: Esoim Guam eSIM 3 GB (30 Days) |
| NomadoGuam - 3GB for 30 daysOur rating: 2.4 out of 5 · 3 GB · 30 days | Our rating: 2.4 out of 5 | 3 GB | 30 | Not stated | Not stated | €8.34 / GB | €25.01 | View deal: Nomado Guam - 3GB for 30 days |
| Buy UK eSIMGuam 1GB 7DaysNew · online since Dec 2025. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 1.9 out of 5 · 1 GB · 7 days | Our rating: 1.9 out of 5 | 1 GB | 7 | Not stated | Not stated | €8.03 / GB | €8.03 | View deal: Buy UK eSIM Guam 1GB 7Days |
| YesimGuam 1 GB 30 daysOur rating: 3.6 out of 5 · 1 GB · 30 days · Docomo | Our rating: 3.6 out of 5 | 1 GB | 30 | Docomo | Yes | €9.50 / GB | €9.50 | View deal: Yesim Guam 1 GB 30 days |
| EsoimGuam eSIM 1 GB (7 Days)Our rating: 2.9 out of 5 · 1 GB · 7 days | Our rating: 2.9 out of 5 | 1 GB | 7 | Not stated | Yes | €8.99 / GB | €8.99 | View deal: Esoim Guam eSIM 1 GB (7 Days) |
| NomadGuam 1 GB 7 daysOur rating: 3.9 out of 5 · 1 GB · 7 days · Docomo | Our rating: 3.9 out of 5 | 1 GB | 7 | Docomo | Yes | €9.83 / GB | €9.83 | View deal: Nomad Guam 1 GB 7 days |
| NomadoGuam - 2GB for 15 daysOur rating: 2.4 out of 5 · 2 GB · 15 days | Our rating: 2.4 out of 5 | 2 GB | 15 | Not stated | Not stated | €8.93 / GB | €17.86 | View deal: Nomado Guam - 2GB for 15 days |
| NomadoGuam - 1GB for 7 daysOur rating: 2.4 out of 5 · 1 GB · 7 days | Our rating: 2.4 out of 5 | 1 GB | 7 | Not stated | Not stated | €9.82 / GB | €9.82 | View deal: Nomado Guam - 1GB for 7 days |
| mysim24Guam · 2 GB · 15 daysOur rating: 3.6 out of 5 · 2 GB · 15 days | Our rating: 3.6 out of 5 | 2 GB | 15 | Not stated | Not stated | €14.50 / GB | €28.99 | View deal: mysim24 Guam · 2 GB · 15 days |
| mysim24Guam · 1 GB · 7 daysOur rating: 3.6 out of 5 · 1 GB · 7 days | Our rating: 3.6 out of 5 | 1 GB | 7 | Not stated | Not stated | €18.99 / GB | €18.99 | View deal: mysim24 Guam · 1 GB · 7 days |
| Lempart FlexUnlimited Data Guam · IP HK · no top-upNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 1 GB a day · 1 day | Our rating: 3.2 out of 5 | 1 GB a day | 1 | Not stated | Yes | No cap | €3.56 | View deal: Lempart Flex Unlimited Data Guam · IP HK · no top-up |
| mysim24Guam · Unlimited · 1 dayOur rating: 3.6 out of 5 · 1 GB a day · 1 day | Our rating: 3.6 out of 5 | 1 GB a day | 1 | Not stated | Not stated | No cap | €4.50 | View deal: mysim24 Guam · Unlimited · 1 day |
| mysim24Guam · Unlimited · 1 dayOur rating: 3.6 out of 5 · 1 GB a day · 1 day | Our rating: 3.6 out of 5 | 1 GB a day | 1 | Not stated | Not stated | No cap | €4.50 | View deal: mysim24 Guam · Unlimited · 1 day |
| Lempart FlexUnlimited Data Guam · IP SGNew · online since Sept 2026. This company went online recently, so it has little track record. We take 1 point off our rating until it has been online for a year.Our rating: 3.2 out of 5 · 1 GB a day · 1 day | Our rating: 3.2 out of 5 | 1 GB a day | 1 | Not stated | Yes | No cap | €4.90 | View deal: Lempart Flex Unlimited Data Guam · IP SG |
eSIM, local SIM or roaming?
What 10 days of data costs you three different ways.
- Best for most
Travel eSIM
€18.75for 10 GB
- Set up at home in 5 minutes
- Keep your own number for WhatsApp
- No passport registration
- Long stays
Local tourist SIM
- Needs your passport at a shop
- Local number for calls
- Queues on arrival
- Most expensive
Your home roaming
- Guam isn't in EU free roaming
- Zero setup
- Easy to overspend
Before you fly to Guam
Do these at home. Most eSIM problems in Guam come from skipping step one.
- Install at homeScan the QR code over Wi-Fi before you leave, so you are online the moment you land.
- Check your phone is unlockedA phone locked to your carrier won't accept another eSIM.
- Turn on roaming for the eSIM onlyLeave your home line on for calls and texts, with its data off.
- Save the network tipIf evenings get slow, pick another network by hand in your phone settings.
Questions people ask
What travellers ask about eSIMs in Guam.
How do I install an eSIM for Guam?
After you buy a plan, the provider sends you a QR code by email or in their app. On an iPhone, open Settings, then Mobile Service, then Add eSIM. On Android, open Settings, then Network and internet, then SIMs. Scan the code while you are still at home on Wi-Fi, then switch the eSIM on for mobile data when you land.
Will an eSIM work in Guam?
Yes, as long as your phone supports eSIM and is not locked to your home carrier. The plans we list for Guam connect to local networks there. Coverage in cities is usually good; if you are heading somewhere remote, check which network the plan uses before you buy.
Can I use the eSIM as a hotspot?
Most travel eSIMs let you share data with a laptop or a friend's phone through a hotspot. A few providers block or limit it, so read the plan details if you need it. Anything you use over the hotspot comes out of the same data allowance.
Will I get a phone number?
Most travel eSIMs are data only: you get mobile internet but no local number. You can still call and message through WhatsApp, FaceTime or similar apps. If you need a number, tick Phone number in the plan filters to see the plans that include one. Your home SIM can stay on for texts such as bank codes.
How we compare eSIMs
Prices come straight from each provider's own feed, converted to euros. The table sorts plans by price per GB unless you pick another order, and our picks come from those same prices. Providers can't pay to rank higher.
- providers compared here
- 17
€25.92· Nomad
Best value, 10 GB