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Guam flag

Guam eSIM.

Tumon Bay snorkelling to Two Lovers Point sunsets — online across the island.

from £4.74/day · unlimited dataWill my phone work here? →
Unlimited dataFast 4G LTEInstant QR by emailHotspot where availableKeep your number
1 · How many days?
10 days
2 · How much data?
3GBBest pricevalid 30 days£14.22£1.42/day
Cheapest plan covering your trip: 3GB, valid 30 days.
Travellers (one eSIM each)
1
1 × 3GB (valid 30 days) · 10-day trip£14.22

Every plan: QR by email in minutes · data-only, keep your number · days start on first connection · top up anytime · the total shown is the whole bill. What's included →

Good to know
Guam is a US territory on the US dollar, so American SIMs often work as domestic — but UK and other phones roam here at steep international rates. An eSIM keeps your data local-priced across Tumon and Hagåtña.
Unlimited, honestly.

Unlimited plans run at full speed up to a daily fair-use allowance, then at reduced speed until the allowance resets the next day — you're never cut off. Every plan is prepaid: the checkout total is the whole bill, and we never add overage charges.

Hotspot support varies by plan and destination — where it's available for your plan in Guam, it's shown in the plan details before you pay.

The Guam eSIM guide.

Guam is America's slice of Micronesia — a compact tropical island where Tumon's hotel strip meets Chamorro villages and reef-fringed bays. Whether you're diving Cocos Lagoon, browsing Hagåtña's markets or catching a Two Lovers Point sunset, an eSIM keeps maps, translations, dive bookings and video calls home running the whole trip.

How it works on the day

Install your eSIM by QR before you fly, then land at Antonio B. Won Pat International (GUM) already connected. It latches onto Docomo Pacific, GTA or IT&E 4G and 5G — no kiosk queues and no swapping out your physical SIM.

Choosing your days

Most visitors stay three to seven days — enough for Tumon's beaches, a southern coast road trip and a Cocos Island day. Pick a plan that matches your dates; longer stays work out cheaper per day than short top-ups.

Guam eSIM pricingbest-value plan · per day
Days
Per day
Total
Saving
3 days1GB
£1.69
£5.07
—
5 days1GB
£1.01
£5.07
−40%
7 days1GB
£0.73
£5.07
−57%
10 days3GBPopular
£1.42
£14.22
−16%
15 days3GB
£0.94
£14.22
−44%
30 days3GB
£0.48
£14.22
−72%
Unlimited plans7 days £33.52·15 days £71.11
Each trip length shows the best-value plan that covers it. Total always shown before you pay.
Where you're headed

Discover Guam.

Serene tropical beach with palm trees under a bright blue sky, perfect for relaxation.
Serene ocean scene with Tumon Bay in the background, showcasing clear blue waters and sky.
A beautiful aerial view of a tropical beach and cityscape in Guam, showcasing the coastline and modern architecture.
Scuba diver captures a close-up shot of a sea turtle in its natural habitat.

The short version.

A travel eSIM is data only. It sits next to your home SIM, so your number, texts and WhatsApp carry on as normal. Pick unlimited, priced per day, or a fixed bundle of GB if it's mostly maps and messages. Install it on Wi-Fi before you fly — the days only start once it first connects in Guam, and it finds a partner network on its own.

Made for your kind of trip.

Beach & snorkellingTumon Bay, Ypao Beach and Gun Beach — unlimited data between reef swims and sunset drinks.
Diving tripsBook WWII wreck dives at Apra Harbor and Cocos Lagoon, then upload the footage the same evening.
Island road tripsLive maps from Hagåtña down to Merizo and up to Two Lovers Point — no wrong turns on the coast road.
Staying in touchVideo calls home across the time zones, plus WhatsApp and translation on tap right around the island.

Coverage in Guam.

4G LTE on partner networks — signal varies by area
Connected · 4G
  • Docomo Pacific
  • GTA
  • IT&E
Popular places covered
TumonHagåtñaTamuningDededoMangilaoYigoBarrigada
Before you fly

Guam eSIM questions, answered.

The Guam eSIM covers Guam only. For a Pacific multi-stop, the Oceania regional eSIM covers 9 destinations on a single plan.
More questions →
Keep exploring

More in Oceania.

Australia flagAustraliafrom £1.53/day5GFiji flagFijifrom £3.25/dayNauru flagNaurufrom £3.54/dayNew Zealand flagNew Zealandfrom £1.59/day5GPapua New Guinea flagPapua New Guineafrom £3.33/daySamoa flagSamoafrom £2.18/dayWhole Oceania on one eSIM.Explore the regional plan →
All destinations·Oceania eSIM·Best eSIM for Guam·Install guide·How eSIM works·Help centre
Guam eSIM from £4.74/dayUnlimited data · instant deliveryChoose days