Vivo S1 (China) vs Vivo X21i comparison

Compare Vivo S1 (China)
Compare Vivo X21i
key specs
Display6.53-inch6.28-inch
ProcessorMediaTek P70MediaTek Helio P60
Front Camera24.8-megapixel 24-megapixel
Rear Camera12-megapixel + 8-megapixel + 5-megapixel 12-megapixel
RAM6GB4GB
Storage128GB64GB
Battery Capacity3940mAh3245mAh
OSAndroid PieAndroid 8.1
Resolution1080x2340 pixels1080x2280 pixels
general
BrandVivoVivo
ModelS1 (China)X21i
Release dateMarch 2019May 2018
Form factorTouchscreenTouchscreen
Dimensions (mm)161.97 x 75.93 x 8.54154.37 x 74.98 x 6.99
Weight (g)189.50159.00
Battery capacity (mAh)39403245
ColoursBlue, Peach PinkAurora White, Polar Night, Ruby Red
display
Screen size (inches)6.536.28
TouchscreenYesYes
Resolution1080x2340 pixels1080x2280 pixels
Aspect ratio19.5:9-
hardware
Processorocta-core2GHz octa-core
Processor makeMediaTek P70MediaTek Helio P60 (MT6771)
RAM6GB4GB
Internal storage128GB64GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)256256
camera
Rear camera12-megapixel (f/1.78) + 8-megapixel (f/2.2) + 5-megapixel (f/2.4)12-megapixel
Front camera24.8-megapixel (f/2.0)24-megapixel
Rear flash-Dual LED
software
Operating systemAndroid PieAndroid 8.1
SkinFunTouch OS 9Funtouch OS 4
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYesYes
USB OTGYesYes
Number of SIMs22
Wi-Fi standards supported-802.11 b/g/n
FM-Yes
sensors
Fingerprint sensorYes-
Compass/ MagnetometerYes-
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesYes
sim 1
SIM Type-Nano-SIM
GSM/CDMA-GSM
3G-Yes
4G/ LTE-Yes
sim 2
SIM Type-Nano-SIM
GSM/CDMA-GSM
3G-Yes
4G/ LTE-Yes
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