Guam eSIM: instant data for your trip
A Guam eSIM from Simnity gives you mobile data the moment you land, with no physical SIM and no roaming bills. We currently offer 5 Guam plans starting from $8.00 with validity from 3 to 30 days. Unlimited-data options are available for heavier users. Buy online, receive your QR code instantly, and connect in minutes.
Mobile coverage and networks in Guam
Guam has strong island-wide 4G/LTE from three carriers, covering the main tourist areas around Tumon and Hagatna. Docomo Pacific offers 5G in certain areas, with other carriers expanding after recent spectrum auctions.
The main mobile networks in Guam are Docomo Pacific, IT&E and GTA. Your Simnity eSIM connects to local partner networks, so you stay online across cities and most travel areas without swapping a physical SIM.
Do you need to register a SIM in Guam?
No ID registration is required for a roaming travel eSIM; it activates over-the-air on a Guam carrier without a local SIM. As a US territory, Guam has no general prepaid SIM-registration mandate for tourists.
What is a Guam eSIM?
An eSIM is a digital SIM built into your phone. Instead of swapping a plastic card, you scan a QR code and a Guam data plan is added to your device. Your normal number stays active on your main line, so you keep receiving calls and texts while you use the Simnity plan for affordable local data in Guam.
How to set up your Guam eSIM
- Choose a plan above based on how many days you are in Guam and how much data you need.
- Check out and pay. Your eSIM QR code arrives instantly by email and in your dashboard.
- Scan the QR code from your phone settings while on Wi-Fi, ideally before you travel.
- Turn on the line and data roaming for Simnity when you arrive, and you are connected.
Why buy your Guam eSIM from Simnity
- Instant delivery. No waiting, no pickup counters. Your Guam eSIM is ready in minutes.
- No roaming shock. Pay a fixed price up front and avoid surprise carrier bills.
- Keep your number. Your main line stays active for calls and texts from home.
- Unlimited options. Heavy data days are covered with unlimited Guam plans.
- Top up anytime. Running low? Add more data without buying a new eSIM.
Guam eSIM FAQs
How much does an eSIM for Guam cost?
Simnity Guam eSIM plans start at $8.00 and go up to $62.00 depending on the data amount and validity you choose. There are 5 plans available right now.
Do I need to register or show ID for a Guam eSIM?
No ID registration is required for a roaming travel eSIM; it activates over-the-air on a Guam carrier without a local SIM. As a US territory, Guam has no general prepaid SIM-registration mandate for tourists.
How do I activate my Guam eSIM?
After you buy, you receive a QR code by email and in your Simnity dashboard. Open your phone settings, choose to add a cellular or mobile data plan, scan the QR code, and turn on data roaming for the Simnity line. Most travelers are connected within a few minutes.
Which networks does a Guam eSIM use?
Mobile service in Guam is provided by Docomo Pacific, IT&E and GTA. Simnity Guam plans run on local partner networks, so you get coverage in cities and most travel areas.
Will my phone work with an eSIM in Guam?
Any eSIM-compatible, carrier-unlocked phone works. That includes iPhone XS and newer, Google Pixel 3 and newer, and recent Samsung Galaxy S and Z models. Check Settings for an "Add eSIM" or "Add data plan" option to confirm.
How long is a Guam eSIM valid for?
Validity ranges from 3 to 30 days, so you can match the plan to a short trip or a longer stay. Validity starts when the eSIM connects to a network in Guam.
