Vivo iQoo Neo 855 vs Vivo X21 UD comparison

Show Only Differences Highlight Differences	Vivo iQoo Neo 855	Vivo X21 UD
key specs
Display	6.38-inch	6.28-inch
Processor	Qualcomm Snapdragon 855	Qualcomm Snapdragon 660
Front Camera	16-megapixel	12-megapixel
Rear Camera	12-megapixel + 8-megapixel + 2-megapixel	12-megapixel
RAM	6GB	6GB
Storage	64GB	128GB
Battery Capacity	4420mAh	3200mAh
OS	Android 9	Android 8.1
Resolution	1080x2340 pixels	1080x2280 pixels
general
Brand	Vivo	Vivo
Model	iQoo Neo 855	X21 UD
Release date	October 1, 2019	March 1, 2018
Form factor	Touchscreen	Touchscreen
Dimensions (mm)	159.53 x 75.23 x 8.13	154.50 x 74.80 x 7.40
Weight (g)	198.50	156.20
Battery capacity (mAh)	4420	3200
Fast charging	Proprietary	-
Colours	Black, Blue White	Ruby Red, Aurora White, Black
display
Screen size (inches)	6.38	6.28
Touchscreen	Yes	Yes
Resolution	1080x2340 pixels	1080x2280 pixels
Aspect ratio	19.5:9	-
hardware
Processor	2.842GHz octa-core	octa-core
Processor make	Qualcomm Snapdragon 855	Qualcomm Snapdragon 660
RAM	6GB	6GB
Internal storage	64GB	128GB
camera
Rear camera	12-megapixel + 8-megapixel + 2-megapixel	12-megapixel
Front camera	16-megapixel	12-megapixel
Rear flash	-	LED
software
Operating system	Android 9	Android 8.1
Skin	-	FunTouch 4.0
connectivity
Wi-Fi	Yes	Yes
GPS	Yes	Yes
Bluetooth	Yes	Yes, v 5.00
USB Type-C	Yes	-
Wi-Fi standards supported	-	802.11 a/b/g/n/ac
USB OTG	-	Yes
Headphones	-	3.5mm
Number of SIMs	-	2
sensors
Fingerprint sensor	Yes	-
Compass/ Magnetometer	Yes	Yes
Proximity sensor	Yes	Yes
Accelerometer	Yes	-
Ambient light sensor	Yes	Yes
Gyroscope	-	Yes
sim 1
SIM Type	-	Micro-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes
sim 2
SIM Type	-	Micro-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes

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