Saipan & Guam

Staying connected in Saipan & Guam

Saipan and Guam belong to the Mariana Islands in the western Pacific, far closer to Asia than the US mainland and ideal for a 4–7 day beach break. Guam is lively, with its strip of hotels along Tumon Bay and big shopping malls; Saipan is quieter and known for Managaha Island, the Grotto dive site and Bird Island.

The dry season, roughly December to June, is the ideal time to go, while the wet season can bring typhoons. A short flight links the two islands, so many travellers combine both in one holiday. You will need data most when driving a hire car, booking dives and sharing beach photos with family.

Coverage and networks

This plan covers the destinations listed below, as published in the plan information (2 in total). Check every stop on your route against the table before buying.

Please note: the plan name mentions Saipan and Guam, but network details are currently published for Guam only. If you are staying on Saipan, ask Simtel to confirm before buying.

Signal and speed depend on where you are, your device and network conditions, and can differ between plans.

Choosing a data allowance

eSIM plans for Saipan & Guam currently last 1 to 30 days and come in these types:

• Daily data (500MB, 1GB, 2GB and 3GB per day): suits a steady routine. Check when the daily allowance resets and what happens once it is used.
• Total data (3GB to 50GB): one allowance for the whole trip, handy when some days are heavier than others.
• Unlimited: always read the fair-use policy; after a set amount, speed may be reduced.

Suggestions for this trip

• A 4–6 day beach stay with resort Wi-Fi: 500MB or 1GB a day is enough for maps and messaging.
• Posting lots of dive and sunset videos: choose 2GB or 3GB a day.
• Longer stays or uneven daily use: 5GB or 10GB of total data is more flexible; before buying, check where the plan can be used in its description.

Count your arrival and departure days. Before paying, check the exact plan for when validity starts, how days are counted, and whether hotspot, calls or SMS are included; these differ between plans.

Before you go

• Getting around: Public transport is limited on both islands; most visitors hire a car, using taxis and hotel shuttles for short hops.
• Currency: Both use the US dollar; hotels and malls take international cards, but carry some cash for night markets and small tour operators.
• Offshore trips: Before boarding the boat to Managaha or a dive trip, screenshot your tickets and the operator's contact details, as there may be no signal at sea.
• Typhoon season: During the wet months, keep an eye on weather alerts and save your hotel's number offline.
• Plugs: Sockets are the US flat-pin type at 110V, so bring an adaptor if your charger has round pins.
• eSIM setup: Before buying, make sure your phone supports eSIM and is not carrier-locked. Install the eSIM before you fly, on a stable Wi-Fi connection, following the instructions sent with your plan.
• On arrival: Set the travel eSIM as your mobile data line and follow its roaming instructions. Turn off data roaming on your home SIM to avoid unexpected charges.