ByteSIM eSIM Data Plans for Bulgaria

ByteSIM does not provide a truly unlimited data eSIM for Bulgaria. All plans labeled “Unlimited” grant only 1 GB of high‑speed data per day; after the daily quota is reached the speed is reduced to 10240 kbps. The names of these plans are therefore misleading and they do not offer unlimited data usage.

Instead, ByteSIM offers fixed data plans that may suit travelers who need a larger volume of data. For example, the 50GB plans are available for 3, 5, 7, 10, and 15 days and cost between $40.90 and $51.90 USD. Choosing a fixed‑data plan can be more economical for users who plan to consume media or data services heavily, rather than relying on a nominally unlimited daily allowance that drops to reduced speeds.

ByteSIM does not provide eSIM plans that include a phone number or SMS capability for travel in Bulgaria. Only data‑only eSIMs are offered, without inbound or outbound voice or text services.

Travelers can use data‑based messaging and voice apps such as WhatsApp, Telegram and iMessage to communicate while connected, which allows calls and text messaging without a local phone number.

ByteSIM currently offers 84 single coverage data plans for Bulgaria. These plans provide a fixed data allowance ranging from 500MB to 50GB, with validity periods between 1 and 30 days. Pricing for these plans ranges from $2.90 to $99.90. Within these 84 plans, 42 offer a fixed data cap, while the other 42 provide a daily data allowance. ByteSIM does not currently offer multi-country plans that include Bulgaria. Tethering is allowed on some plans, and speeds may be reduced after reaching a certain data usage threshold.