Top picks for Guam SIM Cards

Discover 5 SIM Cards in Guam on Trip.com, updated January 5, 2026, with experiences lasting from 1 to 2 hours. Find the perfect adventure for your day!

With 1.654k verified reviews, SIM Cards Guam boast an average rating of 4.2.

This week's most popular SIM Cards: "Global 77 Countries 4G/5G eSIM | Day Pass/Total Data Package | 1-30 Days | 24-Hour Billing | QR Code", with 1.444k reviews and a 4.6 rating.

The next available day tour departs on January 6, 2026. Book now to secure your spot!

Guam SIM Cards usually take about 1 hours — perfect for a relaxed, immersive experience!

January is the perfect time to visit Guam! Choose from SIM Cards available day tours, including seasonal favorites like Global 77 Countries 4G/5G eSIM | Day Pass/Total Data Package | 1-30 Days | 24-Hour Billing | QR Code.

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Reviews/Trip Moments

Reviews: Global 77 Countries 4G/5G eSIM | Day Pass/Total Data Package | 1-30 Days | 24-Hour Billing | QR Code
Guest User2025-11-04
I always use it when I come back to Japan during my trip around the world. It's easy to connect to the internet, so I can use mobile payments like Mobile Suica and Rakuten Pay.
Reviews: Global eSIM (149 countries/regions) 4G/5G | eSIM | China Mobile CMLink | 1-30 day optional | Instant order and use | Supports hotspots | QR Code
Guest User2025-11-07
It works in a lot of countries, the price isn't anything amazing especially depending where you are traveling but it is convenient. I would recommend getting 1gb per day and be prepared that the coverage isn't great.
Reviews: Guam 4G eSIM | 1–30 Days | Supports Saipan, Tinian & Rota | In-App Activation | QR code
Guest User2025-11-18
The speed was fine and the setup was easy. Most hotels have Wi-Fi, so 1G per day is usually fine. If you're traveling for long periods of time, it's a good idea to buy an unlimited SIM card.
Reviews: Global (72 countries) | 4G/5G eSIM | Total Package | 365-day validity | 24H | QR code
Guest User2025-12-16
I bought five eSIM cards. The first one was the cheapest, I don't know why, but the setup is pretty weird.
Reviews: [Guam & Saipan eSIM] Docomo Pacific 5G/4G Data eSIM | High-speed data | Including local voice calls
Guest User2025-10-29
The signal was stable in Guam, and I could make free calls to Guam. I called the owner of the EZ car rental company, and the call quality was excellent. The owner even called me back. For any questions, I could add their customer service line for immediate response.
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