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Oppo R15 Pro vs Oppo R17 vs Samsung Galaxy S9 vs Oppo A57 comparison

 Compare Oppo R15 Pro
Oppo R15 Pro
Compare Oppo R17
Oppo R17
Compare Samsung Galaxy S9
Samsung Galaxy S9
Compare Oppo A57
Oppo A57
key specs
Display6.28-inch6.40-inch5.80-inch5.20-inch
ProcessorQualcomm Snapdragon 660Qualcomm Snapdragon 670Samsung Exynos 9810Qualcomm Snapdragon 435
Front Camera20-megapixel 25-megapixel 8-megapixel 16-megapixel
Rear Camera20-megapixel + 16-megapixel 16-megapixel + 5-megapixel12-megapixel 13-megapixel
RAM6GB8GB4GB3GB
Storage128GB128GB64GB32GB
Battery Capacity3400mAh3500mAh3000mAh2900mAh
OSAndroid 8.1Android 8.1Android 8.0Android 6.0
Resolution1080x2280 pixels1080x2280 pixels1440x2960 pixels720x1280 pixels
general
BrandOppoOppoSamsungOppo
ModelR15 ProR17Galaxy S9A57
Release dateJanuary 1, 2019August 1, 2018March 1, 2018November 1, 2016
Launched in IndiaYes-YesYes
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Dimensions (mm)156.50 x 75.20 x 8.00-147.70 x 68.70 x 8.50149.10 x 72.90 x 7.65
Weight (g)180.00-163.00147.00
Battery capacity (mAh)3400350030002900
Fast chargingVOOCVOOCQuick Charge 2.0-
ColoursCosmic Purple, Ruby RedStreamer Blue, Neon PurpleLilac Purple, Midnight Black, Coral BlueRose Gold, Gold
Removable battery--NoNo
Wireless charging--Yes-
SAR value---1.31
display
Screen size (inches)6.286.405.805.20
TouchscreenYesYesYesYes
Resolution1080x2280 pixels1080x2280 pixels1440x2960 pixels720x1280 pixels
Aspect ratio19:919:918.5:916:9
Pixels per inch (PPI)-374568-
Protection type--Gorilla Glass-
hardware
Processor2GHz octa-coreocta-core (2x2GHz + 6x1.7GHz)octa-core (4x2.7GHz + 4x1.7GHz)1.4GHz octa-core
Processor makeQualcomm Snapdragon 660Qualcomm Snapdragon 670Samsung Exynos 9810Qualcomm Snapdragon 435
RAM6GB8GB4GB3GB
Internal storage128GB128GB64GB32GB
Expandable storageYesNoYesYes
Expandable storage typemicroSD-microSDmicroSD
Expandable storage up to (GB)256-400256
camera
Rear camera20-megapixel (f/1.7) + 16-megapixel (f/1.7)16-megapixel (f/1.8, 1.22-micron) + 5-megapixel12-megapixel (1.4-micron)13-megapixel (f/2.2)
Rear autofocusYesPhase detection autofocusPhase detection autofocusPhase detection autofocus
Rear flashLEDDual LEDLEDLED
Front camera20-megapixel (f/2.0)25-megapixel (f/2.0)8-megapixel (f/1.7, 1.22-micron)16-megapixel (f/2.0, 1.12-micron)
Front autofocus--YesYes
Front flash--No-
software
Operating systemAndroid 8.1Android 8.1Android 8.0Android 6.0
SkinColorOS 5.0ColorOS 5.2Experience 9.0ColorOS 3.0
connectivity
Wi-FiYesYesYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac-802.11 a/b/g/n/ac802.11 b/g/n
GPSYesYesYesYes
BluetoothYes, v 4.20Yes, v 5.00Yes, v 5.00Yes, v 4.10
Headphones3.5mm3.5mm3.5mm3.5mm
Number of SIMs2-22
Wi-Fi DirectYesYesYesNo
Micro-USB-Yes-Yes
NFC--YesNo
USB OTG--YesYes
USB Type-C--Yes-
FM--NoYes
Infrared---No
Mobile High-Definition Link (MHL)---No
sim 1
SIM TypeNano-SIM-Nano-SIMNano-SIM
GSM/CDMAGSM-GSMGSM
3GYes-YesYes
4G/ LTEYes-YesYes
sim 2
SIM TypeNano-SIM-Nano-SIMNano-SIM
GSM/CDMAGSM-GSMGSM
3GYes-YesYes
4G/ LTEYes-YesYes
sensors
Fingerprint sensorYesYesYesYes
Compass/ MagnetometerYes-YesYes
Proximity sensorYesYesYesYes
AccelerometerYesYesYesYes
Ambient light sensorYesYesYesYes
GyroscopeYesYesYesYes
Face unlock--Yes-
Barometer--YesNo
Temperature sensor---No
ratings
Overall NDTV Rating--Read ReviewRead Review
Design Rating--
Display Rating--
Software Rating--
Performance Rating--
Battery Life Rating--
Camera Rating--
Value for Money Rating--

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