eSimfly eSIM Data Plans for Guam

eSimfly does not provide a truly unlimited data eSIM for Guam. The plans that carry the name “Guam Unlimited” actually supply 3 GB of high‑speed data each day; after the 3 GB limit is reached the speed is throttled to 1000 kbps, so the data are not unbounded.

For travelers who need more data over a longer period, eSimfly offers fixed data plans. For example, the Guam 20 GB 30 days plan provides 20 GB of high‑speed data for 30 days, and the Guam 10 GB 30 days plan gives 10 GB for the same duration. Fixed plans can be more cost‑effective unless a user is an extremely heavy data consumer.

eSimfly does not provide Guam eSIM plans that include a phone number or SMS capability. Only data‑only eSIM plans are offered for Guam.

Travelers can use VoIP apps such as WhatsApp, Telegram, and iMessage over the data connection for calls and messaging, but some destinations may block or restrict access to specific apps or VoIP services, so travelers should verify that the apps they rely on are accessible in Guam before purchasing.

eSimfly offers 11 single‑country plans that cover Guam alone and 4 multi‑country plans that include Guam as part of a broader network, making a total of 15 data plan options. Prices span from $3.98 to $96.93, while data caps range from 1 GB to 30 GB. Within this set, some plans provide a fixed data amount, whereas others feature a daily data cap, giving travelers flexibility based on their usage preferences.