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Samsung Galaxy A7 (2018) vs Xiaomi Mi 8 Youth Edition vs Vivo X21 comparison

 Compare Samsung Galaxy A7 (2018)
Samsung Galaxy A7 (2018)
Compare Xiaomi Mi 8 Youth Edition
Xiaomi Mi 8 Youth Edition
Compare Vivo X21
Vivo X21
ratings
Overall NDTV RatingRead Review-Read Review
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
key specs
Display6.00-inch6.26-inch6.28-inch
Processor2.2GHz octa-coreQualcomm Snapdragon 660Qualcomm Snapdragon 660
Front Camera24-megapixel 24-megapixel12-megapixel
Rear Camera24-megapixel + 8-megapixel + 5-megapixel 12-megapixel + 5-megapixel 12-megapixel + 5-megapixel
RAM4GB-6GB
Storage64GB-128GB
Battery Capacity3300mAh3350mAh3200mAh
OSAndroid 8.0AndroidAndroid 8.1
Resolution1080x2220 pixels-1080x2280 pixels
general
BrandSamsungXiaomiVivo
ModelGalaxy A7 (2018)Mi 8 Youth EditionX21
Release dateSeptember 1, 2018September 1, 2018March 1, 2018
Launched in IndiaYes-Yes
Dimensions (mm)159.80 x 76.80 x 7.50-154.50 x 74.80 x 7.40
Weight (g)168.00-156.20
Battery capacity (mAh)330033503200
Removable batteryNo-No
Wireless chargingNo--
ColoursBlack, Blue, Gold, Pink-Black, Gold
Fast charging-Quick Charge 3.0Proprietary
Form factor--Touchscreen
display
Screen size (inches)6.006.266.28
TouchscreenYesYesYes
Resolution1080x2220 pixels-1080x2280 pixels
Aspect ratio18.5:9-19:9
hardware
Processor2.2GHz octa-coreocta-core2.2GHz octa-core
RAM4GB-6GB
Internal storage64GB-128GB
Expandable storageYes-Yes
Expandable storage typemicroSD-microSD
Expandable storage up to (GB)512-256
Processor make-Qualcomm Snapdragon 660Qualcomm Snapdragon 660
camera
Rear camera24-megapixel (f/1.7) + 8-megapixel (f/2.4) + 5-megapixel (f/2.2)12-megapixel (f/1.9) + 5-megapixel (f/1.9)12-megapixel (f/1.8, 1.4-micron) + 5-megapixel (f/2.4)
Rear autofocusYes-Phase detection autofocus
Rear flashYesYesLED
Front camera24-megapixel (f/2.0)24-megapixel12-megapixel (f/2.0)
Front autofocusNo--
Front flashYes--
software
Operating systemAndroid 8.0AndroidAndroid 8.1
Skin-MIUIFunTouch 4.0
connectivity
Wi-FiYesYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac-802.11 a/b/g/n/ac
GPSYesYesYes
BluetoothYes, v 5.00Yes, v 5.00Yes, v 5.00
NFCNo-No
FMYes-No
Number of SIMs222
Active 4G on both SIM cardsYes--
Headphones-3.5mm3.5mm
Infrared--No
USB OTG--Yes
Micro-USB--Yes
sim 1
SIM TypeNano-SIM-Nano-SIM
GSM/CDMA-GSMGSM
3G-YesYes
4G/ LTE-YesYes
sim 2
SIM TypeNano-SIM-Nano-SIM
4G/ LTEYesYesYes
GSM/CDMA-GSMGSM
3G-YesYes
sensors
Face unlockYesYes-
Fingerprint sensorYesYesYes
Compass/ MagnetometerYesYesYes
Proximity sensorYesYesYes
AccelerometerYesYesYes
Ambient light sensorYesYesYes
GyroscopeYesYesYes

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