JamboSim
Guam
eSIM Guam Unlimited data / 3 Days – Instant Activation | GTA Network | JamboSim
∞ Unlimited
∞ Unlimited
Unlimited
Data
3 days
Validity
$8.99
JamboSim eSIM Guam 2026: Cheap Data Plans & Prices
JamboSim eSIM Guam 2026: plans and prices. How much does it cost? Rates by days and GB, the cheapest data package and unlimited options in one list.
Traveling to more than one country? Add it to the search.
Updated Nov 9, 2026
JamboSim plans and prices for Guam
JamboSim for Guam FAQ.
How much does the cheapest JamboSim eSIM for Guam cost?
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The cheapest JamboSim eSIM for Guam costs $8.99 and gives you unlimited data for 3 days. We recheck prices daily, so this price is up to date. You can buy it on the official JamboSim site.
Does JamboSim work in Guam?
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Yes, JamboSim works in Guam on its Guam-only plans. If your eSIM is installed but won't connect after you land, open your phone's settings and turn on data roaming for it. Your home SIM can stay as it is.
How much is a JamboSim eSIM for Guam for 7, 15 or 30 days?
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JamboSim has no 7-, 15- or 30-day plan for Guam.
Does JamboSim have an unlimited data eSIM for Guam?
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Yes, JamboSim has 5 unlimited plans for Guam, up to $69.99 for 30 days. A week without a data cap costs $19.99. You get up to 3 GB a day at full speed, then around 1 Mbps until midnight local time.
What is JamboSim, and is it good for Guam?
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JamboSim is an eSIM store for travelers, with plans covering 204 destinations. On Trustpilot, 32 people have rated it 4.0 out of 5. If you want prices for other countries and the full verdict, read the JamboSim eSIM review.
Can I use a JamboSim eSIM as a mobile hotspot in Guam?
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Yes, every JamboSim plan, unlimited ones included, lets you share data through a personal hotspot with no restrictions.
Does JamboSim have a phone plan with a number for Guam?
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No, most JamboSim plans for Guam are data only, so your home number stays on your main SIM. You can still call and message people through WhatsApp or other apps.
Can I buy a JamboSim eSIM before my trip to Guam and use it later?
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Yes, you can buy it weeks ahead and install it at home. The days start only when your phone first connects to a network in Guam, not when you buy or install it.
Can I top up a JamboSim eSIM?
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Yes, where the carrier supports it, you can top up in the JamboSim app or on the website under My eSIMs. A top-up doesn't add to the days you have left: it starts its own days when it's activated.