Vivo X21 UD vs Samsung Galaxy J7 Pro comparison

Compare Vivo X21 UD
Compare Samsung Galaxy J7 Pro
key specs
Display6.28-inch5.50-inch
ProcessorQualcomm Snapdragon 660Samsung Exynos 7 Octa 7870
Front Camera12-megapixel13-megapixel
Rear Camera12-megapixel13-megapixel
RAM6GB3GB
Storage128GB64GB
Battery Capacity3200mAh3600mAh
OSAndroid 8.1Android 7.0
Resolution1080x2280 pixels1080x1920 pixels
general
BrandVivoSamsung
ModelX21 UDGalaxy J7 Pro
Release dateMarch 1, 2018June 1, 2017
Form factorTouchscreenTouchscreen
Dimensions (mm)154.50 x 74.80 x 7.40152.40 x 74.70 x 7.90
Weight (g)156.20-
Battery capacity (mAh)32003600
ColoursRuby Red, Aurora White, BlackBlack, Gold
Launched in India-Yes
Removable battery-No
display
Screen size (inches)6.285.50
TouchscreenYesYes
Resolution1080x2280 pixels1080x1920 pixels
Aspect ratio-16:9
Pixels per inch (PPI)-401
hardware
Processorocta-core1.6GHz octa-core
Processor makeQualcomm Snapdragon 660Samsung Exynos 7 Octa 7870
RAM6GB3GB
Internal storage128GB64GB
Expandable storage-Yes
Expandable storage type-microSD
Expandable storage up to (GB)-128
camera
Rear camera12-megapixel13-megapixel (f/1.7)
Rear flashLEDLED
Front camera12-megapixel13-megapixel (f/1.9)
Rear autofocus-Yes
Front flash-LED
software
Operating systemAndroid 8.1Android 7.0
SkinFunTouch 4.0-
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac802.11 b/g/n
GPSYesYes
BluetoothYes, v 5.00Yes, v 4.10
USB OTGYesYes
Headphones3.5mm3.5mm
Number of SIMs22
NFC-Yes
Infrared-No
Micro-USB-Yes
FM-Yes
Wi-Fi Direct-No
Mobile High-Definition Link (MHL)-No
sim 1
SIM TypeMicro-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesNo
4G/ LTEYesYes
sim 2
SIM TypeMicro-SIM-
GSM/CDMAGSM-
3GYesNo
4G/ LTEYesYes
sensors
Compass/ MagnetometerYesYes
Proximity sensorYesYes
Ambient light sensorYesYes
GyroscopeYesYes
Fingerprint sensor-Yes
Accelerometer-Yes
Barometer-No
Temperature sensor-No

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