Product
Xiaomi Mi 2S
Xiaomi Mi 2S
Xiaomi Mi Max 3
Xiaomi Mi Max 3
Battery
Charging - 18W wired, QC3
Music play Up to 45 h -
Stand-by Up to 450 h (3G) -
Talk time Up to 15 h (3G) -
Type Li-Ion 2000 mAh, removable Li-Ion 5500 mAh, non-removable
Body
Build - Glass front, aluminum back, aluminum frame
Dimensions 126 x 62 x 10.2 mm (4.96 x 2.44 x 0.40 in) 176.2 x 87.4 x 8 mm (6.94 x 3.44 x 0.31 in)
SIM Mini-SIM Nano-SIM + Nano-SIM
Weight 145 g (5.11 oz) 221 g (7.80 oz)
Comms
Bluetooth 4.0, A2DP 5.0, A2DP, LE
Infrared port - Yes
NFC No No
Positioning GPS, GLONASS GPS, GLONASS, BDS
Radio FM radio FM radio
USB microUSB 2.0 (MHL TV-out), OTG USB Type-C
WLAN Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA
Display
Protection - To be confirmed
Resolution 720 x 1280 pixels, 16:9 ratio (~342 ppi density) 1080 x 2160 pixels, 18:9 ratio (~350 ppi density)
Size 4.3 inches, 51.0 cm2 (~65.2% screen-to-body ratio) 6.9 inches, 122.9 cm2 (~79.8% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Accelerometer, gyro, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Launch
Announced 2013, April. Released 2013, April 2018, July. Released 2018, July
Status Discontinued Discontinued
Main Camera
Dual - 12 MP, f/1.9, 1/2.55", 1.4µm, dual pixel PDAF 5 MP, f/2.2, (depth)
Features LED flash, HDR Dual-LED flash, HDR, panorama
Single 8 MP, f/2.2 (16 GB version) 13 MP, f/2.2, AF (32 GB version) -
Video 1080p@30fps, 720p@90fps, HDR 4K@30fps, 720p/1080p@30fps (gyro-EIS), 720p@120fps
Memory
Card slot No microSDXC (uses shared SIM slot)
Internal 16GB 2GB RAM, 32GB 2GB RAM 64GB 4GB RAM, 128GB 6GB RAM
  - eMMC 5.1
Misc
Colors Black/white, black/blue, black/yellow, black/green, black/pink Black, Champagne Gold, Blue
Models - M1804E4A
SAR - 1.58 W/kg (head)     1.42 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands HSDPA 850 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G bands - 1, 3, 4, 5, 7, 8, 20, 34, 38, 39, 40, 41
Speed HSPA 42.2/5.76 Mbps HSPA, LTE
Technology GSM / HSPA GSM / CDMA / HSPA / EVDO / LTE
  - CDMA2000 1xEV-DO
Our Tests
Audio quality - Noise -93.7dB / Crosstalk -94.0dB
Battery (old) - Endurance rating 115h
Camera - Photo / Video
Display - Contrast ratio: 1462 (nominal), 3.061 (sunlight)
Loudspeaker - Voice 68dB / Noise 71dB / Ring 83dB
Performance - AnTuTu: 119229 (v7) GeekBench: 4907 (v4.4) GFXBench: 6fps (ES 3.1 onscreen)
Platform
Chipset Qualcomm APQ8064 Snapdragon S4 Pro Qualcomm SDM636 Snapdragon 636 (14 nm)
CPU Quad-core 1.7 GHz Krait 300 Octa-core (4x1.8 GHz Kryo 260 Gold & 4x1.6 GHz Kryo 260 Silver)
GPU Adreno 320 Adreno 509
OS Android 4.1 (Jelly Bean), upgradable to 4.4.4 (KitKat), MIUI 5 Android 8.1 (Oreo), upgradable to Android 10, MIUI 12
Selfie camera
Single 2 MP 8 MP, f/2.0, 1/4.0", 1.12µm
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes, with stereo speakers