Lenovo
Lenovo S820

Lenovo
Lenovo S920

Features
Accelerometer, proximity
Accelerometer, proximity
Accelerometer, proximity, compass
Memory
microSD, up to 32 GB (dedicated slot), 512 MB, 256 MB RAM
microSD, up to 32 GB (dedicated slot), 4/8 GB, 1 GB RAM
microSD, up to 32 GB (dedicated slot), 4 GB, 1 GB RAM
Display
320 x 480 pixels, 3:2 ratio (~165 ppi density), Capacitive touchscreen, 3.5 inches, 36.5 cm2
Corning Gorilla Glass, 720 x 1280 pixels, 16:9 ratio (~312 ppi density), IPS LCD Capacitive Touchscreen, 16M Colors, 4.7 inches, 60.9 cm2 (~62.6% screen-to-body ratio)
720 x 1280 pixels, 16:9 ratio (~277 ppi density), IPS LCD Capacitive Touchscreen, 16M Colors, 5.3 inches, 77.4 cm2 (~64.7% screen-to-body ratio)
Battery
Up to 19 h, Removable Li-Po 1300 mAh battery, Up to 504 h
Up to 22 h (2G) / Up to 10 h (3G), Removable Li-Po 2000 mAh battery, Up to 140 h (2G) / Up to 140 h (3G)
Up to 25 h (2G) / Up to 12 h (3G), Removable Li-Po 2250 mAh battery, Up to 480 h (2G) / Up to 480 h (3G)
Main Camera
Yes, 2 MP
Yes, LED flash, 12 MP, AF
Yes, LED flash, 8 MP, AF