Product
Xiaomi Mi 2S
Xiaomi Mi 2S
Vivo S1 (China)
Vivo S1 (China)
Battery
Charging - 18W wired
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 3940 mAh, non-removable
Body
Dimensions 126 x 62 x 10.2 mm (4.96 x 2.44 x 0.40 in) 162 x 76 x 8.5 mm (6.38 x 2.99 x 0.33 in)
SIM Mini-SIM Nano-SIM + Nano-SIM
Weight 145 g (5.11 oz) 189.5 g (6.70 oz)
Comms
Bluetooth 4.0, A2DP 5.0, A2DP, LE
NFC No No
Positioning GPS, GLONASS GPS, GLONASS, BDS
Radio FM radio FM radio
USB microUSB 2.0 (MHL TV-out), OTG microUSB 2.0
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 2340 pixels, 19.5:9 ratio (~395 ppi density)
Size 4.3 inches, 51.0 cm2 (~65.2% screen-to-body ratio) 6.53 inches, 104.7 cm2 (~85.0% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Accelerometer, gyro, proximity, compass Fingerprint (rear-mounted), accelerometer, proximity, compass
Launch
Announced 2013, April. Released 2013, April 2019, March. Released 2019, April
Status Discontinued Discontinued
Main Camera
Features LED flash, HDR LED flash, HDR, panorama
Single 8 MP, f/2.2 (16 GB version) 13 MP, f/2.2, AF (32 GB version) -
Triple - 12 MP, f/1.8, 13mm (ultrawide), PDAF 8 MP, f/2.2, (wide) 5 MP, f/2.4, (depth)
Video 1080p@30fps, 720p@90fps, HDR 1080p@30fps
Memory
Card slot No microSDXC
Internal 16GB 2GB RAM, 32GB 2GB RAM 128GB 4GB RAM, 128GB 6GB RAM
  - eMMC 5.1
Misc
Colors Black/white, black/blue, black/yellow, black/green, black/pink Blue, Pink, Ice black
Models - V1831A, V1831T
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 1900 / 2100 HSDPA 850 / 900 / 2100
4G bands - 1, 3, 5, 8, 34, 38, 39, 40, 41
Speed HSPA 42.2/5.76 Mbps HSPA 42.2/5.76 Mbps, LTE (2CA) Cat7 300/50 Mbps
Technology GSM / HSPA GSM / CDMA / HSPA / LTE
  - CDMA 800 & TD-SCDMA
Platform
Chipset Qualcomm APQ8064 Snapdragon S4 Pro Mediatek MT6771 Helio P70 (12 nm)
CPU Quad-core 1.7 GHz Krait 300 Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
GPU Adreno 320 Mali-G72 MP3
OS Android 4.1 (Jelly Bean), upgradable to 4.4.4 (KitKat), MIUI 5 Android 9.0 (Pie), Funtouch 9
Selfie camera
Features - HDR
Single 2 MP Motorized pop-up 25 MP, f/2.0
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes