1 GB / 7 days
Best for: A short visit with maps, messages and occasional browsing.
This option pairs the 1 GB allowance with a stated validity period of 7 days.
Usage tip: Save maps before longer journeys and use Wi-Fi for large downloads.
* The "as low as" figure is the lowest per-day rate, taken from the longest unlimited data plan on sale here.
Here's how Onetel stacks up against other options in Guam.
Prices shown in USD
7 days of unlimited data in Guam costs $98.80 — about $14.11 a day on Docomo Pacific, GTA (Teleguam) or IT&E, with no roaming charge and no SIM to swap. In Guam, 5G is live.
Choose your Guam eSIM by matching the allowance and validity period to your trip, then compare the selected product details with the local network, band and speed references already shown on this page.
Start with the length of your stay, then allow for navigation, messaging, streaming and work use. Each option below is a plan size that is currently available for this destination.
Best for: A short visit with maps, messages and occasional browsing.
This option pairs the 1 GB allowance with a stated validity period of 7 days.
Usage tip: Save maps before longer journeys and use Wi-Fi for large downloads.
Best for: A stay of around two weeks with regular navigation and messaging.
The 3 GB allowance remains available across a stated validity period of 15 days.
Usage tip: Keep automatic app updates and cloud backups on Wi-Fi.
Best for: A longer stay or more frequent streaming, video calls or work use.
The 10 GB or more / 30 days profile provides a larger data pool than the short-trip options on this page.
Usage tip: Compare the allowance with your normal phone usage and monitor it during the trip.
Your eSIM roams onto Guam's own operators. These are the networks and the frequencies they run — check your phone supports them before you travel.
Guam is a small island territory; all three operators provide near-island-wide coverage on the main island, but service is absent or extremely limited on the uninhabited outer islands and in deep rural jungle interior. B17 (700 MHz Lower B/C blocks) is used by Docomo Pacific and GTA but is absent from many international phones not designed for the North American market.
The Guam mobile network source is linked below as a public network reference. Check the places on your itinerary where the source offers local detail, then confirm the network information for the selected eSIM product. The operator table on this page provides the country-level reference, while the selected product details identify which network information applies to your plan.
Check your accommodation and the places you expect to visit in Guam. Indoor reception can differ from an outdoor map, so keep the property Wi-Fi details available as well.
Review the full route rather than checking only the arrival city. Save tickets, addresses and maps offline before longer road or rail journeys.
Check the selected product scope for every country on your itinerary. Your Guam plan and a regional plan may have different included destinations and validity periods.
Compare your phone with 4G bands B2, B4, B12, B17 and 5G bands n41, n71 in the existing Guam network table. Support for more of the listed bands gives the phone more options when connecting, while the selected product, location and local network conditions determine the service available.
Keep the QR code and installation instructions available offline, and complete each step according to the selected product's instructions.
When validity starts: Validity-start rules can differ by product. Check the selected plan details before installation and travel.
Guam sits in the western Pacific, about a three- to four-hour flight from most major Asian hubs. As a U.S. territory with a deep Chamorro heritage and a visible World War II history, it blends Asian, American, and island influences. English is widely spoken, and the U.S. dollar is the local currency. Most visitors arrive at Antonio B. Won Pat International Airport, near the central west coast. The main tourist corridor runs along Tumon Bay, where you will find the highest concentration of hotels, restaurants, and shops. Rental cars and taxis are the most practical ways to get around, though public buses are available but infrequent. Traffic drives on the right, the same as in the mainland United States. Whether you stay for a long weekend or a full week, the island is compact enough to explore without long drives.
Tumon Bay - The primary resort area, with calm waters perfect for swimming and snorkeling. Hotels, bars, and duty-free shops line the beach.
From forts to reefs, Guam’s attractions are spread out. Plan one site per half-day to avoid rushing.
Kelaguen - A Chamorro staple of grilled meat (chicken, beef, or shrimp) minced and mixed with lemon juice, fresh coconut, and hot pepper. Served cold, often with titiyas.
Local restaurants in Hagåtña and Tumon offer these dishes. Expect a mix of Spanish, Filipino, Japanese, and Chamorro influences on most menus.
Guam has a tropical marine climate with warm temperatures year-round, usually between 75°F and 86°F (24°C to 30°C). The most comfortable period for outdoor activities is from December to May, when humidity is lower and rainfall is less frequent. These months also coincide with the dry season, making beach days and hikes more predictable.
From June to November, the island experiences higher humidity and a higher chance of afternoon showers. This period overlaps with typhoon season, though direct hits are uncommon. Travel during these months is still possible, but you should monitor forecasts and allow flexibility in your itinerary.
Guam’s peak tourist season runs from December through March, when visitors from colder climates arrive. Hotel rates and flight prices are higher then. The shoulder months of April, May, and October offer a good balance of decent weather and lower crowds.
High-SPF sunscreen - The equatorial sun is intense even on cloudy days. Choose a reef-safe formula to protect Guam’s marine life.
Guam’s dress code is casual and practical. Leave heavy jackets and formal wear at home. Your uPhone eSIM will work automatically on local networks, so you can skip buying a separate SIM card.
The details worth knowing about your Guam eSIM
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