Simsima eSIM Data Plans for Guam

Simsima does not provide a true unlimited‑data eSIM for Guam. All of its plans are capped, either as fixed bundles or as daily limits with a speed reduction after a certain amount of usage. The plans labelled “Unlimited” in the name actually offer 3 GB per day, and after 2 GB of daily usage the speed drops to 1 Mbps.

Travelers who need more data can choose from Simsima’s fixed data plans that cover 30 days, such as the 20 GB for $60.23 USD, the 10 GB for $35.31 USD, or the 5 GB for $23.63 USD. These fixed plans can be more cost‑effective for users who are moderate or heavy data consumers, and they provide a clear hard limit that must be used within the specified validity window.

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.