Vivo S1 (China) vs Vivo X21i comparison

Show Only Differences Highlight Differences	Vivo S1 (China)	Vivo X21i
key specs
Display	6.53-inch	6.28-inch
Processor	MediaTek Helio P70	MediaTek Helio P60
Front Camera	24.8-megapixel	24-megapixel
Rear Camera	12-megapixel + 8-megapixel + 5-megapixel	12-megapixel
RAM	6GB	4GB
Storage	128GB	64GB
Battery Capacity	3940mAh	3245mAh
OS	Android Pie	Android 8.1
Resolution	1080x2340 pixels	1080x2280 pixels
general
Brand	Vivo	Vivo
Model	S1 (China)	X21i
Release date	March 1, 2019	May 1, 2018
Form factor	Touchscreen	Touchscreen
Dimensions (mm)	161.97 x 75.93 x 8.54	154.37 x 74.98 x 6.99
Weight (g)	189.50	159.00
Battery capacity (mAh)	3940	3245
Colours	Blue, Peach Pink	Aurora White, Polar Night, Ruby Red
display
Screen size (inches)	6.53	6.28
Touchscreen	Yes	Yes
Resolution	1080x2340 pixels	1080x2280 pixels
Aspect ratio	19.5:9	-
hardware
Processor	octa-core	2GHz octa-core
Processor make	MediaTek Helio P70	MediaTek Helio P60 (MT6771)
RAM	6GB	4GB
Internal storage	128GB	64GB
Expandable storage	Yes	Yes
Expandable storage type	microSD	microSD
Expandable storage up to (GB)	256	256
camera
Rear camera	12-megapixel (f/1.78) + 8-megapixel (f/2.2) + 5-megapixel (f/2.4)	12-megapixel
Front camera	24.8-megapixel (f/2.0)	24-megapixel
Rear flash	-	Dual LED
software
Operating system	Android Pie	Android 8.1
Skin	FunTouch OS 9	Funtouch OS 4
connectivity
Wi-Fi	Yes	Yes
GPS	Yes	Yes
Bluetooth	Yes	Yes
USB OTG	Yes	Yes
Number of SIMs	2	2
Wi-Fi standards supported	-	802.11 b/g/n
FM	-	Yes
sensors
Fingerprint sensor	Yes	-
Compass/ Magnetometer	Yes	-
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Ambient light sensor	Yes	Yes
Gyroscope	Yes	Yes
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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