How much data do I need for a Sri Lanka trip?

For a typical 7 to 10-day Sri Lanka trip covering Colombo, Kandy, Galle, and a safari, 5 GB to 10 GB is enough for most travelers. A 2 to 3-week trip adding Ella, Mirissa, and the Cultural Triangle with daily PickMe rides, Google Maps, WhatsApp, and casual photo uploads usually needs 10 GB to 20 GB. Heavy users uploading content from tea plantations or working remotely should pick the unlimited plan. Tuktuk navigation and ride-hailing apps consume more data than expected on Sri Lanka itineraries.