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Vivo Y91 vs Oppo A83 (2018) vs Oppo F7 vs Samsung Galaxy J7 Prime comparison

 Compare Vivo Y91
Vivo Y91
Compare Oppo A83 (2018)
Oppo A83 (2018)
Compare Oppo F7
Oppo F7
Compare Samsung Galaxy J7 Prime
Samsung Galaxy J7 Prime
key specs
Display6.22-inch5.70-inch6.23-inch5.50-inch
ProcessorMediaTek Helio P22 MediaTek MT6737TMediaTek Helio P60 Samsung Exynos 7 Octa 7870
Front Camera8-megapixel 8-megapixel25-megapixel 8-megapixel
Rear Camera13-megapixel + 2-megapixel 13-megapixel16-megapixel 13-megapixel
RAM2GB4GB4GB3GB
Storage32MB64GB64GB16GB
Battery Capacity4030mAh3180mAh3400mAh3300mAh
OSAndroid 8.1Android 7.1Android 8.1Android 6.0
Resolution720x1520 pixels720x1440 pixels1080x2280 pixels1080x1920 pixels
general
BrandVivoOppoOppoSamsung
ModelY91A83 (2018)F7Galaxy J7 Prime
Release dateJanuary 1, 2019December 1, 2017March 1, 2018September 1, 2016
Launched in IndiaYesYesYesYes
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Dimensions (mm)155.11 x 75.09 x 8.28150.50 x 73.10 x 7.70156.00 x 75.30 x 7.80151.50 x 74.90 x 8.10
Weight (g)163.50143.00158.00167.00
Battery capacity (mAh)4030318034003300
ColoursStarry Black, Ocean Blue-Diamond Black, Moonlight Silver, Solar Red,Gold, Black
Removable battery--NoNo
SAR value--1.27-
display
Screen size (inches)6.225.706.235.50
TouchscreenYesYesYesYes
Resolution720x1520 pixels720x1440 pixels1080x2280 pixels1080x1920 pixels
Aspect ratio-18:919:916:9
Protection type--Gorilla GlassGorilla Glass
Pixels per inch (PPI)--405401
hardware
Processorocta-core2.5GHz octa-coreocta-core (4x2GHz + 4x2GHz)1.6GHz octa-core
Processor makeMediaTek Helio P22 (MT6762R)MediaTek MT6737TMediaTek Helio P60 (MT6771)Samsung Exynos 7 Octa 7870
RAM2GB4GB4GB3GB
Internal storage32MB64GB64GB16GB
Expandable storageYesYesYesYes
Expandable storage typemicroSDmicroSDmicroSDmicroSD
Expandable storage up to (GB)256256256256
Dedicated microSD slotYes---
camera
Rear camera13-megapixel (f/f/2.2) + 2-megapixel (f/f/2.4)13-megapixel16-megapixel (f/1.8)13-megapixel (f/1.9)
Rear flashLEDLEDLEDLED
Front camera8-megapixel (f/f/1.8)8-megapixel25-megapixel (f/2.0)8-megapixel (f/1.9)
Front flashNo-No-
Rear autofocus--Phase detection autofocusYes
software
Operating systemAndroid 8.1Android 7.1Android 8.1Android 6.0
SkinFuntouch OS 4.5ColorOS 3.2ColorOS 5.0-
connectivity
Wi-FiYesYesYesYes
BluetoothYes, v 5.00Yes, v 4.20Yes, v 4.20Yes, v 4.10
NFCNoNoNoNo
Micro-USBYes--Yes
Headphones3.5mm3.5mm3.5mm3.5mm
Number of SIMs2222
Active 4G on both SIM cardsYes---
Wi-Fi standards supported-802.11 a/b/g/n802.11 b/g/n/ac-
GPS-YesYesYes
Infrared-NoNoNo
USB OTG-YesYesYes
FM-YesYesYes
Wi-Fi Direct--YesNo
Mobile High-Definition Link (MHL)---No
sim 1
SIM TypeNano-SIMNano-SIMNano-SIMNano-SIM
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/ LTEYesYesYesYes
sim 2
SIM TypeNano-SIMNano-SIMNano-SIMNano-SIM
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/ LTEYesYesYesYes
sensors
Face unlockYes---
Fingerprint sensorYes-YesYes
Compass/ MagnetometerYes-YesNo
Proximity sensorYesYesYesYes
AccelerometerYesYesYesYes
Ambient light sensorYesYesYesNo
GyroscopeYes-YesNo
Barometer---No
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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