Lumbus does not provide a truly unlimited high‑speed eSIM plan for Zambia. All Zambia‑specific offerings have a hard data limit. The plan marketed as “Zambia Unlimited” is capped at 3 GB per day; after the daily allowance is reached, data continues at a reduced speed of 1000 kbps until the plan expires.
Users who need more data can instead opt for a fixed data plan, such as the 20 GB for 30 days or the 10 GB for 30 days options. These plans give travelers a set amount of full‑speed data over a three‑month period and are typically a more cost‑effective solution for most trips to Zambia.