- Lowest priceCA$7.99
- Avg. cost per GBCA$8.46
- Providers here5
The short answer
For most trips to Guam, Nomad 10 GB for 30 days at $29.00 is the one to take — it works out at $2.90 per GB, better than anything else here. If you only need maps and messaging, Saily at $7.99 is the cheapest way in.
Our picks for Guam
Chosen by the numbers below, not by who pays us. Every pick states why it won.
- Best valueNomad10 GB · 30 days$29.00$2.90 / GB
$2.90 per GB — 2.8× better value than the entry plan.
See this plan - Cheapest way inSaily1 GB · 7 days$7.99$7.99 / GB
The lowest price for Guam. Enough for maps and messaging on a short trip.
See this plan
What data costs in Guam
The cheapest plan on this page is a starter nobody wants, and the best value per GB is a bundle nobody needs. This is the question in between: pick the amount of data you want and see who is cheapest for it.
| Data | Cheapest | Next best | You could overpay |
|---|---|---|---|
| 1 GB or more | $7.99Saily | $9Ubigi | +$13.01 |
| 3 GB or more | $15Nomad | $19Ubigi | +$41 |
| 5 GB or more | $19Nomad | $35.99Saily | +$20 |
| 10 GB or more | $29Nomad | $39Ubigi | +$19.99 |
All 18 plans
The full list, with every field each provider publishes. Sort or filter it to your trip.
Showing 18 of 18 plans
| Compare | Provider | Data | Validity | Price | Per GB | 5G | Top-up | Network | View plan |
|---|---|---|---|---|---|---|---|---|---|
| Saily | 1 GBBest price | 7 days | $7.99 | $7.99 | — | — | — | View plan | |
| Ubigi | 1 GB | 7 days | $9.00 | $9.00 | — | — | — | View plan | |
| Nomad | 1 GB | 7 days | $11.00 | $11.00 | ✓ | ✓ | Docomo | View plan | |
| Airalo | Unlimited | 3 days | CA$11.50 | — | ✗ | ✗ | GTA | View plan | |
| Nomad | 3 GB | 30 days | $15.00 | $5.00 | ✓ | ✓ | Docomo | View plan | |
| Nomad | 5 GB | 30 days | $19.00 | $3.80 | ✓ | ✓ | Docomo | View plan | |
| Ubigi | 3 GB | 15 days | $19.00 | $6.33 | — | — | — | View plan | |
| Amigo eSIM | 1 GB | 14 days | $21.00 | $21.00 | — | — | — | View plan | |
| Saily | 3 GB | 30 days | $24.99 | $8.33 | — | — | — | View plan | |
| Airalo | Unlimited | 7 days | CA$26.00 | — | ✗ | ✗ | GTA | View plan | |
| Nomad | 10 GBBest value | 30 days | $29.00 | $2.90 | ✓ | ✓ | Docomo | View plan | |
| Airalo | Unlimited | 10 days | CA$35.50 | — | ✗ | ✗ | GTA | View plan | |
| Saily | 5 GB | 30 days | $35.99 | $7.20 | — | — | — | View plan | |
| Ubigi | 10 GB | 8 days | $39.00 | $3.90 | — | — | — | View plan | |
| Saily | 10 GB | 30 days | $48.99 | $4.90 | — | — | — | View plan | |
| Airalo | Unlimited | 15 days | CA$50.00 | — | ✗ | ✗ | GTA | View plan | |
| Amigo eSIM | 3 GB | 14 days | $56.00 | $18.67 | — | — | — | View plan | |
| Airalo | Unlimited | 30 days | CA$88.00 | — | ✗ | ✗ | GTA | View plan |
A dash means the provider does not publish this, not that the feature is missing.
“Unlimited” plans are capped by a daily fair-use limit. The allowance shown is the provider's stated ceiling, not a speed guarantee.
Brand by brand in Guam
What each brand sells here, and what it will say about it. A dash means the brand does not publish that — which is worth knowing before you buy, not after.
| Brand | From | Plans | Longest | 5G | Hotspot | Top-up |
|---|---|---|---|---|---|---|
| Saily | $7.99 | 4 | 30 days | — | — | — |
| Ubigi | $9 | 3 | 15 days | — | — | — |
| NomadDocomo | $11 | 4 | 30 days | ✓ | — | ✓ |
| AiraloGTA | CA$11.50 | 5 | 30 days | ✕ | — | ✕ |
| Amigo eSIM | $21 | 2 | 14 days | — | ✓ | — |
Frequently asked about eSIMs for Guam
What is the cheapest eSIM for Guam?
Saily at $7.99 for 1 GB over 7 days. That is the lowest price of the 18 plans tracked here. It is not the best value per gigabyte — small packages rarely are — so check the price-per-GB column before buying if you expect to use more than a couple of gigabytes.
Which eSIM gives the best value per GB in Guam?
Nomad: 10 GB for 30 days at $29.00, which works out at $2.90 per gigabyte. Value per gigabyte matters more than headline price on any trip longer than a weekend.
Are there unlimited eSIM plans for Guam?
Yes — 5 of the plans tracked here are sold as unlimited, from CA$11.50. Read them carefully: unlimited means full speed up to a daily allowance, then throttling for the rest of the day, and some carry a total ceiling as well. The provider's own wording is shown on every plan.
Which mobile networks do these eSIMs use in Guam?
The providers that publish it list Docomo, GTA. Not every provider discloses its network partner, and where one does not, this site shows a dash rather than guessing.
How current are these prices?
They were last read from each provider's own page on 9/17/2026. Prices are re-checked every day and the per-plan date is shown on every row; if a provider cannot be read, its plans keep their previous figures and are marked as carried over.
Some links on this page are affiliate links. If you buy through them we may earn a commission, at no extra cost to you. It never changes the prices shown or the order of the results.
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TürkiyeWhat readers say about eSIMs in Guam
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