Capped data plans
Ranked by price per gigabyte. Only plans valid for the trip length shown are included.
| Provider | Data | Valid | Price | Per GB | Network | Buy |
|---|---|---|---|---|---|---|
| SimAbove | 20 GB | 30 days | $52.29 | $2.61/GB | — | View deal |
| SimAbove | 10 GB | 30 days | $29.05 | $2.90/GB | — | View deal |
| SimAbove | 5 GB | 30 days | $15.69 | $3.14/GB | — | View deal |
| SimAbove | 3 GB | 30 days | $10.46 | $3.49/GB | — | View deal |
| Saily | 10 GB | 30 days | $50.53 | $5.05/GB | — | View deal |
| SimAbove | 1 GB | 7 days | $5.23 | $5.23/GB | — | View deal |
| Yesim | 10 GB | 30 days | $58.10 | $5.81/GB | — | View deal |
| Yesim | 5 GB | 30 days | $34.86 | $6.97/GB | — | View deal |
| Saily | 5 GB | 30 days | $37.17 | $7.43/GB | — | View deal |
| Yesim | 3 GB | 30 days | $23.24 | $7.75/GB | — | View deal |
| Saily | 1 GB | 7 days | $8.12 | $8.12/GB | — | View deal |
| Saily | 3 GB | 30 days | $25.55 | $8.52/GB | — | View deal |
Unlimited data plans
Ranked by price per day. Unlimited plans have no price per gigabyte, so they are never mixed with the capped list above.
| Provider | Data | Valid | Price | Per day | Network | Buy |
|---|---|---|---|---|---|---|
| Holafly | Unlimited | 90 days | $149.77 | $1.66/day | — 5G | View deal |
| Holafly | Unlimited | 89 days | $148.61 | $1.67/day | — 5G | View deal |
| Holafly | Unlimited | 88 days | $147.45 | $1.68/day | — 5G | View deal |
| Holafly | Unlimited | 87 days | $146.29 | $1.68/day | — 5G | View deal |
| Holafly | Unlimited | 86 days | $145.13 | $1.69/day | — 5G | View deal |
| Holafly | Unlimited | 85 days | $143.96 | $1.69/day | — 5G | View deal |
| Holafly | Unlimited | 84 days | $142.80 | $1.70/day | — 5G | View deal |
| Holafly | Unlimited | 83 days | $141.64 | $1.71/day | — 5G | View deal |
| Holafly | Unlimited | 82 days | $140.48 | $1.71/day | — 5G | View deal |
| Holafly | Unlimited | 81 days | $139.32 | $1.72/day | — 5G | View deal |
| Holafly | Unlimited | 80 days | $138.15 | $1.73/day | — 5G | View deal |
| Holafly | Unlimited | 79 days | $136.99 | $1.73/day | — 5G | View deal |
The short answer
Written to stand on its own, so it stays true wherever it gets quoted.
As of 4 September 2026, the cheapest travel eSIM for Guam is SimAbove at $2.90 for unlimited data valid 1 day, out of 113 plans from 6 providers (SimAbove, Holafly, Airalo, Saily, Yesim, Roamless). For unlimited data, SimAbove is cheapest at $2.90 for 1 day ($2.90 per day).
By the numbers
Figures written to be quoted whole — each carries its own units, scope and date.
Across 16 capped plans for Guam, cost per gigabyte ranges from $2.61 to $15.95, a 6.1x spread, with a median of $7.43. Checked 4 September 2026.
Common questions
What is the cheapest eSIM for Guam?
The cheapest travel eSIM for Guam is SimAbove at $2.90 for unlimited data over 1 days. Prices were last checked on 4 September 2026.
Which Guam eSIM has the lowest cost per GB?
SimAbove offers the lowest cost per gigabyte for Guam at $2.61 per GB (20 GB for $52.29 over 30 days).
Is there an unlimited data eSIM for Guam?
Yes. The cheapest unlimited-data eSIM for Guam is SimAbove at $2.90 for 1 days, which works out at $2.90 per day.
How many eSIM providers cover Guam?
This page compares 113 plans from 6 providers for Guam: SimAbove, Holafly, Airalo, Saily, Yesim, Roamless.
What the terms mean
Defined here so a price can be read correctly rather than guessed at.
- eSIM
- A SIM profile downloaded to a phone rather than inserted as a plastic card. A travel eSIM sells data in a destination without changing the phone's usual number.
- Throttled unlimited
- A plan whose data never runs out but which drops to a reduced speed after a stated full-speed allowance. It is not equivalent to an uncapped plan.
- Price per gigabyte
- The total plan price divided by its data allowance, used to compare capped plans of different sizes. It cannot be calculated for unlimited plans.
- Price per day
- The total plan price divided by its validity in days, used to compare unlimited plans, which have no per-gigabyte figure.
- KYC
- Identity verification some providers require before a plan can be activated, typically a passport scan.
- Top-up
- The ability to add more data to an eSIM already installed, rather than buying a new one.
How these prices were collected
This page compares 113 plans from 6 providers for Guam. Prices are collected automatically from each provider and were last checked on 4 September 2026. Figures are converted to USD so they can be compared; you are charged in the provider's own currency at their rate. Links to providers are affiliate links.