Oppo F7 vs Vivo X21 vs Samsung Galaxy S8 comparison

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ratings
Overall NDTV RatingRead ReviewRead ReviewRead Review
Design Rating
Display Rating
Software Rating
Performance Rating
Battery Life Rating
Camera Rating
Value for Money Rating
key specs
Display6.23-inch6.28-inch5.80-inch
Processorocta-core 2.2GHz octa-coreocta-core
Front Camera25-megapixel 12-megapixel 8-megapixel
Resolution1080x2280 pixels1080x2280 pixels1440x2960 pixels
RAM4GB6GB4GB
OSAndroid 8.1Android 8.1Android 7.0
Storage64GB128GB64GB
Rear Camera16-megapixel 12-megapixel + 5-megapixel 12-megapixel
Battery Capacity3400mAh3200mAh3000mAh
general
Release dateMarch 2018March 2018March 2017
Launched in IndiaYesYesYes
Form factorTouchscreenTouchscreenTouchscreen
Dimensions (mm)156.00 x 75.30 x 7.80154.50 x 74.80 x 7.40148.90 x 68.10 x 8.00
Weight (g)158.00156.20155.00
Battery capacity (mAh)340032003000
Removable batteryNoNoNo
ColoursDiamond Black, Moonlight Silver, Solar Red,Black, GoldMidnight Black, Orchid Gray, Arctic Silver, Coral Blue, Maple Gold
SAR value1.27--
Fast charging-ProprietaryQuick Charge 2.0
display
Screen size (inches)6.236.285.80
TouchscreenYesYesYes
Resolution1080x2280 pixels1080x2280 pixels1440x2960 pixels
Protection typeGorilla Glass-Gorilla Glass
Aspect ratio19:919:918.5:9
Pixels per inch (PPI)405-570
hardware
Processorocta-core (4x2GHz + 4x2GHz)2.2GHz octa-coreocta-core (4x2.35GHz + 4x1.9GHz)
Processor makeMediaTek Helio P60Qualcomm Snapdragon 660Samsung Exynos 8895
RAM4GB6GB4GB
Internal storage64GB128GB64GB
Expandable storageYesYesYes
Expandable storage typemicroSDmicroSDmicroSD
Expandable storage up to (GB)256256256
camera
Rear camera16-megapixel (f/1.8)12-megapixel (f/1.8, 1.4-micron) + 5-megapixel (f/2.4)12-megapixel (f/1.7, 1.4-micron)
Rear autofocusPhase detection autofocusPhase detection autofocusPhase detection autofocus
Rear flashLEDLEDDual LED
Front camera25-megapixel (f/2.0)12-megapixel (f/2.0)8-megapixel (f/1.7, 1.22-micron)
Front flashNo--
Front autofocus--Yes
software
Operating systemAndroid 8.1Android 8.1Android 7.0
SkinColorOS 5.0FunTouch 4.0-
connectivity
Wi-FiYesYesYes
Wi-Fi standards supported802.11 b/g/n/ac802.11 a/b/g/n/ac802.11 a/b/g/n/ac
GPSYesYesYes
BluetoothYes, v 4.20Yes, v 5.00Yes
NFCNoNoYes
InfraredNoNoNo
USB OTGYesYesNo
Headphones3.5mm3.5mm3.5mm
FMYesNoNo
Number of SIMs221
Micro-USB-Yes-
USB Type-C--Yes
sim 1
SIM TypeNano-SIMNano-SIM-
GSM/CDMAGSMGSMGSM
3GYesYesYes
4G/ LTEYesYesYes
sim 2
SIM TypeNano-SIMNano-SIM-
GSM/CDMAGSMGSM-
3GYesYes-
4G/ LTEYesYes-
sensors
Fingerprint sensorYesYesYes
Compass/ MagnetometerYesYesYes
Proximity sensorYesYesYes
AccelerometerYesYesYes
Ambient light sensorYesYesYes
GyroscopeYesYesYes
Barometer--Yes
Temperature sensor--No