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Guam Prepaid eSIM Plans, Sorted by Cost per GB (Oct 2026)
HelloRoam, an eSIM platform, is the top pick for Guam at $3.74 per GB on a 20 GB plan; this site holds no Guam price row for Airalo or Holafly. HelloRoam publishes 5 Guam prepaid plans here, from $7.99 to $74.77. Airalo covers 200+ destinations, against the 185 that HelloRoam sells.
Plan snapshot
- Lowest cost per GB: 20 GB, 30 days, $74.77 ($3.74/GB).
- Plan totals: $7.99 for 1 GB to $74.77 for 20 GB, read 29 Oct 2026.
- Rival prices: not read for Guam. The 30 Oct 2026 price check covers 42 destinations.
- Unlimited: $14.19 for 1 day to $289.48 for 30 days, with 2 GB a day at full speed.
- All 5 Guam plans allow hotspot and top-ups, per the plan list of 7 Sep 2026.
- HelloRoam names GTA Wireless as the single host network behind the Guam plans.
GTA Wireless 4G · hotspot and top-ups (plan list, 7 Sep 2026)
Which Guam plans does this site hold?
Complete Plan Table
| # | $/GB ↑ | Plan | Total | Network | Days | Action |
|---|---|---|---|---|---|---|
| 1 | $3.74Lowest $/GB | 20GB | $74.77 | GTA Wireless | 30d | Get this plan → |
| 2 | $3.99 | 10GB | $39.87 | GTA Wireless | 30d | Get this plan → |
| 3 | $3.99 | 5GB | $19.95 | GTA Wireless | 30d | Get this plan → |
| 4 | $4.24 | 3GB | $12.71 | GTA Wireless | 30d | Get this plan → |
| 5 | $7.99 | 1GB | $7.99 | GTA Wireless | 7d | Get this plan → |
Catalogue rows read 29 Oct 2026.
What the spread looks like
Guam rates span $3.74 to $7.99/GB across 5 tracked plans, a 114% gap between the cheapest and the dearest. The lowest tracked plan is HelloRoam at $3.74/GB ($74.77 for 20GB, 30 days). Bigger bundles carry the lower rate here: 20GB works out at $3.74/GB against $4.24/GB on 3GB.
How do the five providers compare in Guam?
The first row has the top rubric score, 9.0 out of 10 on the method of 30 Oct 2026. 1 of the five has a Guam rate here, and the first row lists the lowest at $3.74/GB.
| Provider | Score | Lowest $/GB here | Cheaper plans here | Destinations | Min-max GB | Min-max validity | Hotspot | Devices |
|---|---|---|---|---|---|---|---|---|
1. HelloRoam Cheapest in the most price cells | 9.0/10 | $3.74 20 GB / 30 days at $74.77 | No rival price read here | 185 | 1-20 GB | 7-30 days | Yes, all plans | iPhone XR+, Android 2020+ |
2. Holafly Joint longest refund window | 6.3/10 | Not published | Not read | 200+ | Not published | Not published | Limited, some countries | iPhone XR+, Android 2020+ |
3. Nomad Second on price cells won | 5.9/10 | Not published | Not read | 200 | Not published | Not published | Not on all plans | iPhone XR+, Android 2020+ |
4. Airalo Joint first on the coverage score | 5.5/10 | Not published | Not read | 200+ | Not published | Not published | Yes, metered plans only | iPhone XR+, Android 2020+ |
5. Saily Joint second-widest plan mix | 4.0/10 | Not published | Not read | Not stated | Not published | Not published | Yes, most plans | iPhone XR+, Android 2020+ |
First-row rates come from that provider's catalogue, read 29 Oct 2026. No rival price for Guam was read in the 30 Oct 2026 price check.
- HelloRoam · Cheapest in the most price cells · Cheapest of all five in 207 of 367 price cells read 30 Oct 2026.
- Holafly · Joint longest refund window · 180 days on an unactivated eSIM, level with the top pick.
- Nomad · Second on price cells won · Cheapest of all five in 95 of 367 price cells read 30 Oct 2026.
- Airalo · Joint first on the coverage score · 200+ destinations, level with Holafly.
- Saily · Joint second-widest plan mix · Fixed plans in 42 and unlimited plans in 40 of the 42 destinations checked, level with Airalo.
The order is the rubric on the research method page, not a price sort. Not published means no price for Guam was read for that provider. No coverage means the provider does not sell that destination. No cell is filled with an estimate.
Every plan in this index is data only, with no local phone number. All of them need an eSIM-capable handset, which means iPhone XR or newer and most Android phones from 2020.
Whose Guam plans are these?
HelloRoam (5 plans)
HelloRoam offers 5 plans for Guam, starting at $74.77 ($3.74/GB, 20GB, 30 days).
| # | $/GB ↑ | Plan | Total | Network | Days | Action |
|---|---|---|---|---|---|---|
| 1 | $3.74Lowest $/GB | 20GB | $74.77 | GTA Wireless | 30d | Get this plan → |
| 2 | $3.99 | 10GB | $39.87 | GTA Wireless | 30d | Get this plan → |
| 3 | $3.99 | 5GB | $19.95 | GTA Wireless | 30d | Get this plan → |
| 4 | $4.24 | 3GB | $12.71 | GTA Wireless | 30d | Get this plan → |
| 5 | $7.99 | 1GB | $7.99 | GTA Wireless | 7d | Get this plan → |
Which Guam plan terms should you check?
Tethering and Hotspot Restrictions
All 5 tracked plans for Guam include tethering at no extra cost. Share your data connection with a laptop or travel companion.
Top-Up Pricing
All 5 plans support data top-up. If you run out of data, purchase additional data through the provider app without buying a new plan.
Tax and Checkout Surprises
Prices shown are what providers display at checkout. Some providers include VAT in the listed price, others add it at checkout. Always review the final amount before completing your purchase. Currency conversion fees may apply depending on your payment method.
Which Guam plan has the lowest cost per GB?
Our pick for Guam
HelloRoam's 20GB plan delivers the lowest cost per gigabyte for Guam at $3.74/GB. 20GB over 30 days for $74.77 total. Includes tethering. Top-up supported.
Get this plan →For heavy users
For heavy data users, HelloRoam's 10GB offers 10GB for $39.87 ($3.99/GB). Good for streaming, video calls, and hotspot use over 30 days.
Unlimited option
Unlimited data starts at $14.19 for 1 day ($14.19/day). High-speed data capped at 2GB/day, then throttled. Best for travelers who stream daily or need hotspot for a laptop.
| Duration | Per day | Total | Discount |
|---|---|---|---|
1 day | $14.19/day | $14.19 | none |
3 days | $13.48/day | $40.44 | 5% off |
7 days | $12.49/day | $87.41 | 12% off |
15 days | $11.35/day | $170.28 | 20% off |
30 days | $9.65/day | $289.48 | 32% off |
How do Guam providers differ per GB?
1 provider competes for Guam with 5 plans in total. Each has distinct strengths. HelloRoam: 5 plans, from $7.99 for 1GB, and $3.74/GB at the lowest rate. Largest plan: 20GB. Strengths: cheapest per-GB at $3.74/GB, tethering on all plans, top-up support, 5 plan options, plans up to 30 days. HelloRoam wins the price race for Guam at $3.74/GB. For travelers who prioritize price above all else, HelloRoam is the data-driven choice. Only one provider lists Guam here, so the choice is which of its tiers fits the trip rather than which provider to use.
How does the Guam eSIM market look?
Guam is a Tier 3 eSIM destination: limited provider coverage with constrained plan options. 5 plans from 1 provider are tracked, starting at $3.74/GB. Tier 3 markets have fewer plans, less provider competition, and higher per-GB rates. If only 1-2 providers cover this destination, pricing is less competitive. The available options may still offer strong value compared to local SIM or roaming costs. Only one provider covers Guam. Without competition, prices are set by that provider's wholesale costs and margins. Monitor this page for new providers entering the market.
How wide is the Guam price spread?
Guam rates span $3.74 to $7.99/GB across 5 tracked plans. Choosing the right row saves more than timing the purchase. Only 1 provider cover Guam, limiting price competition. Rates are less likely to drop compared to high-competition destinations with 4-5 providers. Guam is a Tier 3 destination with lower demand. Prices in Tier 3 markets move less frequently. The current cheapest rate is $3.74/GB from HelloRoam. The cheapest tracked plan is $74.77 from HelloRoam ($3.74/GB, 20GB, 30 days). Confirm it on the provider's own checkout page before you buy.
Prepaid SIM vs eSIM price in Guam?
An eSIM for Guam starts at $7.99 from HelloRoam (1GB, $7.99/GB). Airport SIM pricing for Guam is not tracked here, so compare the counter price on arrival. eSIM plans connect to GTA and DOCOMO Pacific networks. The eSIM installs before you fly. Read 29 Oct 2026.
Which networks do Guam plans use?
Local Networks
Guam's primary carriers are GTA and DOCOMO Pacific.
Practical Tips
US territory — US plans may include Guam.
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