Product
Xiaomi Mi 2S
Xiaomi Mi 2S
Xiaomi Mi Note 2
Xiaomi Mi Note 2
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 4070 mAh, non-removable
Body
Build - Glass front, glass back, aluminum frame
Dimensions 126 x 62 x 10.2 mm (4.96 x 2.44 x 0.40 in) 156.2 x 77.3 x 7.6 mm (6.15 x 3.04 x 0.30 in)
SIM Mini-SIM Nano-SIM + Nano-SIM
Weight 145 g (5.11 oz) 166 g (5.86 oz)
Comms
Bluetooth 4.0, A2DP 4.2, A2DP, LE
Infrared port - Yes
NFC No Yes
Positioning GPS, GLONASS GPS, GLONASS, BDS
Radio FM radio No
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
Display
Resolution 720 x 1280 pixels, 16:9 ratio (~342 ppi density) 1080 x 1920 pixels, 16:9 ratio (~386 ppi density)
Size 4.3 inches, 51.0 cm2 (~65.2% screen-to-body ratio) 5.7 inches, 89.6 cm2 (~74.2% screen-to-body ratio)
Type IPS LCD AMOLED
Features
Sensors Accelerometer, gyro, proximity, compass Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer
Launch
Announced 2013, April. Released 2013, April 2016, October. Released 2016, November
Status Discontinued Discontinued
Main Camera
Features LED flash, HDR Dual-LED dual-tone flash, HDR, panorama
Single 8 MP, f/2.2 (16 GB version) 13 MP, f/2.2, AF (32 GB version) 22.5 MP, f/2.0, 1/2.6", 1.0µm, PDAF
Video 1080p@30fps, 720p@90fps, HDR 4K@30fps, 1080p@30fps (gyro-EIS)
Memory
Card slot No No
Internal 16GB 2GB RAM, 32GB 2GB RAM 64GB 4GB RAM, 64GB 6GB RAM, 128GB 6GB RAM
Misc
Colors Black/white, black/blue, black/yellow, black/green, black/pink Black, Gold, Silver
Models - 2015213
SAR - 0.78 W/kg (head)     1.38 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 / 1700(AWS) / 1900 / 2100
4G bands - 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41
Speed HSPA 42.2/5.76 Mbps HSPA 42.2/5.76 Mbps, LTE (3CA) Cat12 600/150 Mbps
Technology GSM / HSPA GSM / HSPA / LTE
Our Tests
Audio quality - Noise-94.4dB / Crosstalk -91.7dB
Battery (old) - Endurance rating 92h
Camera - Photo / Video
Display - Contrast ratio: 66800 (nominal), 3.228 (sunlight)
Loudspeaker - Voice 63dB / Noise 68dB / Ring 76dB
Performance - GFXBench: 20fps (ES 3.1 onscreen)
Platform
Chipset Qualcomm APQ8064 Snapdragon S4 Pro Qualcomm MSM8996 Snapdragon 821 (14 nm)
CPU Quad-core 1.7 GHz Krait 300 Quad-core (2x2.35 GHz Kryo & 2x1.6 GHz Kryo)
GPU Adreno 320 Adreno 530
OS Android 4.1 (Jelly Bean), upgradable to 4.4.4 (KitKat), MIUI 5 Android 6.0 (Marshmallow), MIUI 8.2
Selfie camera
Single 2 MP 8 MP, f/2.0, AF
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes
  - 24-bit/192kHz audio