Vivo S1 (China) vs Vivo X21s comparison

Compare Vivo S1 (China)
Compare Vivo X21s
key specs
Display6.53-inch6.41-inch
ProcessorMediaTek P70Qualcomm Snapdragon 660
Front Camera24.8-megapixel 24.8-megapixel
Rear Camera12-megapixel + 8-megapixel + 5-megapixel 12-megapixel + 5-megapixel
RAM6GB6GB
Storage128GB128GB
Battery Capacity3940mAh3400mAh
OSAndroid PieAndroid 8.1 Oreo
Resolution1080x2340 pixels1080x2340 pixels
general
BrandVivoVivo
ModelS1 (China)X21s
Release dateMarch 2019November 2018
Form factorTouchscreenTouchscreen
Dimensions (mm)161.97 x 75.93 x 8.54157.91 x 75.08 x 7.90
Weight (g)189.50156.00
Battery capacity (mAh)39403400
ColoursBlue, Peach PinkStarry Night Black
display
Screen size (inches)6.536.41
TouchscreenYesYes
Resolution1080x2340 pixels1080x2340 pixels
Aspect ratio19.5:919.5:9
hardware
Processorocta-coreocta-core
Processor makeMediaTek P70Qualcomm Snapdragon 660
RAM6GB6GB
Internal storage128GB128GB
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 + 5-megapixel
Front camera24.8-megapixel (f/2.0)24.8-megapixel
Rear autofocus-Yes
software
Operating systemAndroid PieAndroid 8.1 Oreo
SkinFunTouch OS 9-
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYesYes
USB OTGYes-
Number of SIMs22
Micro-USB-Yes
Headphones-3.5mm
sensors
Fingerprint sensorYesYes
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesYes
Face unlock-Yes
sim 1
GSM/CDMA-GSM
3G-Yes
4G/ LTE-Yes
sim 2
GSM/CDMA-GSM
3G-Yes
4G/ LTE-Yes
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