Oppo
Oppo R1 R829T

Oppo
Oppo R3

Features
Accelerometer, gyro, proximity
Accelerometer, gyro, proximity
Accelerometer, gyro, proximity
Memory
No, 16 GB, 1 GB RAM
No, 16 GB, 1 GB RAM
microSD, up to 256 GB (dedicated slot), 8 GB, 1 GB RAM
Display
IPS LCD capacitive touchscreen, 16M colors, 720 x 1280 pixels, 16:9 ratio (~312 ppi density), 4.7 inches, 60.9 cm2 (~65.6% screen-to-body ratio)
Corning Gorilla Glass 3, IPS LCD capacitive touchscreen, 16M colors, 720 x 1280 pixels, 16:9 ratio (~294 ppi density), 5.0 inches, 68.9 cm2 (~68.6% screen-to-body ratio)
IPS LCD capacitive touchscreen, 16M colors, 720 x 1280 pixels, 16:9 ratio (~294 ppi density), 5.0 inches, 68.9 cm2 (~68.8% screen-to-body ratio)
Battery
Non-removable Li-Ion 2000 mAh battery
Non-removable Li-Ion 2410 mAh battery
Non-removable Li-Ion 2410 mAh battery
Main Camera
1080p@30fps, LED flash, panorama, HDR
1080p@30fps, LED flash, panorama, HDR
1080p@30fps, LED flash, panorama, HDR