AUTO picks from this device's CPU, memory and connection. SAVER sends lighter previews and fewer requests; exports always stay full resolution.
Due to how Selene works, every interaction with the map draws about 50 - 200kb of data (0.5 MB for 3D). This is normally not an issue, but can become expensive on limited data plans.
Selene will automatically adjust based on your device's capabilities, but you can override this at any time in the settings.