Xiaomi
Xiaomi Redmi 3s

Xiaomi
Xiaomi Mi Max

Features
Accelerometer, Compass, Fingerprint (front-mounted), barometer, proximity, gyro
Accelerometer, gyro, proximity, compass
Accelerometer, Compass, proximity, gyro, Fingerprint (rear-mounted)
Memory
UFS 2.0, No, 128GB 4GB RAM (Pro), 64GB 3GB RAM (Prime), 32GB 3GB RAM (Standard)
eMMC 5.1, microSD, up to 256 GB (uses SIM 2 slot), 16 GB , 2 GB RAM
eMMC 4.5 or eMMC 5.1, microSDXC (uses shared SIM slot), 32GB 3GB RAM, 128GB 4GB RAM (Prime), 16GB 2GB RAM, 64GB 3GB RAM
Display
Corning Gorilla Glass 4, 1080 x 1920 pixels, 16:9 ratio (~428 ppi density), IPS LCD Capacitive Touchscreen, 16M Colors, 5.15 inches, 73.1 cm2 (~73.1% screen-to-body ratio)
720 x 1280 pixels, 16:9 ratio (~294 ppi density), IPS LCD, 5.0 inches, 68.9 cm2 (~71.1% screen-to-body ratio)
Corning Gorilla Glass 4, 1080 x 1920 pixels, 16:9 ratio (~342 ppi density), IPS LCD Capacitive Touchscreen, 16M Colors, 6.44 inches, 114.3 cm2 (~74.8% screen-to-body ratio)
Battery
Non-removable Li-Po 3000 mAh battery, Fast charging 18W
Quick Charge 3.0
Charging 10W, Non-removable Li-Ion 4100 mAh battery
Non-removable Li-Ion 4850 mAh battery
Selfie Camera
4 MP, f/2.0, 1/3", 2µm, 1080p@30fps
f/2.2, 5 M, 1080p@30fps
5 MP, f/2.0, 1080p@30fps
Main Camera
4K@30fps, 1080p@30fps, 720p@120fps, HDR, Dual-LED dual-tone flash, Panorama, 16 MP, f/2.0, 1/2.8", 1.12µm, 4-axis OIS, PDAF
1080p@30fps, LED flash, HDR, panorama, 13 MP, PDAF, f/2.0
4K@30fps, 1080p@30fps, 720p@120fps, Dual-LED dual-tone flash, Panorama, HDR, 16 MP, PDAF, f/2.0