Simsima eSIM Data Plans for Guam

Simsima does not provide a true unlimited high‑speed eSIM for Guam.
The plans labeled “Unlimited – 7 days, ” “Unlimited – 10 days, ” and “Unlimited – 30 days” actually grant 3GB per day and reduce speed to 1000 kbps after 2GB of daily use.

Travelers who need more data can choose fixed data plans instead. For example, the “Guam 10GB 30Days” plan offers 10GB of data usable over 30 days, and the “Guam 5GB 30Days” plan provides 5GB for the same period. These fixed‑data options can be more economical unless a user requires continuously unlimited data.

Simsima does not provide an eSIM for Guam that includes a phone number or SMS capability. Travelers to Guam can only purchase data‑only eSIM plans from this provider. If a VoIP service such as WhatsApp, Telegram, or iMessage is needed for voice or text communication, it can normally be used over the data connection, but some destinations may block or restrict certain apps. Travelers should confirm that the apps they require are accessible in Guam before purchasing.

Simsima currently offers nine single‑country data plans for Guam and does not provide any multi‑country plans. The available plans range in price from about $9.26 to $112.35 and in data cap from 1 GB up to 20 GB. Of these, four plans include a daily data cap while five provide a fixed data amount, allowing users to choose between short‑term daily limits or a longer‑term data allotment.