eSimfly does not offer a plan with an unlimited data cap for Estonia. Every Estonia‑specific plan in the catalogue lists a fixed data allowance and, when applicable, states a reduced speed that applies after the limit is reached.
Instead, eSimfly sells fixed data plans. For instance, the Estonia Unlimited 30 days plan provides 3GB per day, after which the speed drops to 1000kbps. Another option is the O2 Unlimited (International) plan, which offers 35GB for 30 days. These fixed‑data plans are typically more cost‑effective for most travelers and can be topped up if additional data is required.