GU
Guam eSIM prices: HelloRoam from $7.99 for 1 GB
| Provider | Price (5GB) | Coverage | Rating | Best For |
|---|---|---|---|---|
| HelloRoam | $19.95 | GTA Wireless | 4.9/5 | 180-day refund |
| Airalo | Not verified | 200+ countries | 4.5/5 | Most destinations |
| Holafly | Unlimited | 160 countries | 4.2/5 | Heavy users |
Our top 3 picks for Guam
We evaluated 6 eSIM plans available for Guam, comparing them on verified pricing, network coverage, top-up availability, and app quality. Five stood out.
Pros: Guam coverage on GTA Wireless, hotspot sharing and top-up on every plan, 24/7 support in 63 languages, and a 180-day refund on an unactivated eSIM. Cons: Newer brand, smaller community than Airalo.
| Tier | Duration | Discount | Starting price |
|---|---|---|---|
| Short Stay | 1-2 days | 4% off | $6.70$3.35/day · 2d |
| Week Package | 3-9 days | 8% off | $22.48$3.21/day · 7d |
| Extended Stay | 10-19 days | 11% off | $31.06$3.11/day · 10d |
| Monthly Package | 20-29 days | 15% off | $59.33$2.97/day · 20d |
| Long TermBest Value | 30-365 days | 18% off | $85.85$2.86/day · 30d |
Pros: 200+ countries, top-up available, largest community. Cons: Priced above newer competitors on some routes, support response times can vary.
Pros: Truly unlimited data, full-speed on most plans, live chat support 24/7. Cons: Premium pricing, no per-GB options available.
Guam network coverage on GTA Wireless
HelloRoam runs its Guam plans on GTA Wireless, the island's main operator, which is why the recommendation holds right across Tumon Bay: GTA is the carrier with 4G on every hotel tower, at Micronesia Mall, and on the beach itself. DOCOMO Pacific also covers the island and is popular with Japanese travelers, but it carries no visitor eSIM plans in this catalogue. GTA Wireless reaches further for international visitors than DOCOMO Pacific does, reaching Tumon Bay, Hagåtña, the southern villages, and the main highway corridors, and it is the single network listed on all 6 Guam plans.
Coverage analysis
GTA Wireless 4G LTE covers Tumon Bay's entire resort strip including the major hotel towers, shopping malls like Micronesia Mall and GPO, and the beach. Antonio B. Won Pat International Airport connects on arrival.
Hagåtña capital district has solid 4G. Route 1 along the west coast from Tumon to Merizo has consistent coverage. Two Lovers Point and Ritidian Point at the island's north tip both have 4G.
The Mariana diving sites on the west coast are accessible via 4G-covered shore areas.
Activation
Scan your eSIM QR code before arriving at Antonio B. Won Pat International Airport (GUM). GTA Wireless registers the profile on arrival, so there is no SIM counter to queue at in the terminal.
Guam uses US-standard time zones and the US dollar. iPhone XS or newer, Pixel 3a or newer, and Galaxy S20 or newer support eSIM. Your device must be carrier-unlocked.
Data usage tips
Budget 450-550 MB per day at Tumon Bay resorts for shopping navigation, resort booking apps, social media, and Google Maps for the military history sites in the south. The Guam Shopping Festival and tax-free electronics stores on Tumon's main strip are easy to navigate on 4G. Diving bookings with local operators use minimal data.
A 7-day plan comfortably covers a standard Guam resort holiday. Download War in the Pacific National Historical Park guides offline for the southern tour route.
eSIM plan pricing in Guam
Guam eSIM plans start at $7.99 for 1 GB over 7 days on GTA Wireless. The 3 GB plan costs $12.71 and the 5 GB plan $19.95, both over 30 days. The 10 GB plan at $39.87 suits a photo-heavy resort holiday, and the 20 GB plan at $74.77 gives $3.74/GB across the 6.
A 2 GB per day plan costs $14.19, with a fair-use speed reduction once the daily allowance is spent. Verdict: HelloRoam prices Guam from $7.99 for 1 GB on GTA Wireless 4G, the one network an eSIM buyer reaches on the island.
All 6 Guam eSIM plans from $7.99 for 1 GB
| Plan | Network | Validity | Price |
|---|---|---|---|
| Guam 20GB 30Days ⭐ | GTA Wireless | 30 days / 20 GB | $74.77 |
| Guam 10GB 30Days | GTA Wireless | 30 days / 10 GB | $39.87 |
| Guam 5GB 30Days | GTA Wireless | 30 days / 5 GB | $19.95 |
| Guam 3GB 30Days | GTA Wireless | 30 days / 3 GB | $12.71 |
| Guam 1GB 7Days | GTA Wireless | 7 days / 1 GB | $7.99 |
| Guam 2GB/DayFair use policy | GTA Wireless | 1 day / 2 GB per day | $14.19 |
Prices verified: September 20, 2026
Guam eSIM questions answered
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Provider reviews
Read our in-depth reviews of the top eSIM providers available in Guam.
