Oppo R17 vs Vivo X21 comparison

Compare Oppo R17
Compare Vivo X21
key specs
Display6.40-inch6.28-inch
ProcessorQualcomm Snapdragon 670Qualcomm Snapdragon 660
Front Camera25-megapixel 12-megapixel
Rear Camera16-megapixel + 5-megapixel12-megapixel + 5-megapixel
RAM8GB6GB
Storage128GB128GB
Battery Capacity3500mAh3200mAh
OSAndroid 8.1Android 8.1
Resolution1080x2280 pixels1080x2280 pixels
general
BrandOppoVivo
ModelR17X21
Release dateAugust 1, 2018March 1, 2018
Form factorTouchscreenTouchscreen
Battery capacity (mAh)35003200
Fast chargingVOOCProprietary
ColoursStreamer Blue, Neon PurpleBlack, Gold
Launched in India-Yes
Dimensions (mm)-154.50 x 74.80 x 7.40
Weight (g)-156.20
Removable battery-No
display
Screen size (inches)6.406.28
TouchscreenYesYes
Resolution1080x2280 pixels1080x2280 pixels
Aspect ratio19:919:9
Pixels per inch (PPI)374-
hardware
Processorocta-core (2x2GHz + 6x1.7GHz)2.2GHz octa-core
Processor makeQualcomm Snapdragon 670Qualcomm Snapdragon 660
RAM8GB6GB
Internal storage128GB128GB
Expandable storageNoYes
Expandable storage type-microSD
Expandable storage up to (GB)-256
camera
Rear camera16-megapixel (f/1.8, 1.22-micron) + 5-megapixel12-megapixel (f/1.8, 1.4-micron) + 5-megapixel (f/2.4)
Rear autofocusPhase detection autofocusPhase detection autofocus
Rear flashDual LEDLED
Front camera25-megapixel (f/2.0)12-megapixel (f/2.0)
software
Operating systemAndroid 8.1Android 8.1
SkinColorOS 5.2FunTouch 4.0
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYes, v 5.00Yes, v 5.00
Micro-USBYesYes
Headphones3.5mm3.5mm
Wi-Fi DirectYes-
Wi-Fi standards supported-802.11 a/b/g/n/ac
NFC-No
Infrared-No
USB OTG-Yes
FM-No
Number of SIMs-2
sensors
Fingerprint sensorYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesYes
Compass/ Magnetometer-Yes
ratings
Overall NDTV Rating-Read Review
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
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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