Oppo A3 vs Apple iPhone 6s vs Samsung Galaxy Grand Prime 4G comparison

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ratings
Overall NDTV Rating-Read Review--
Design Rating---
Display Rating---
Software Rating---
Performance Rating---
Battery Life Rating---
Camera Rating---
Value for Money Rating---
key specs
Display6.20-inch4.70-inch5.00-inch-
Processor2GHz octa-core1.84GHz dual-core1.2GHz quad-core-
Front Camera8-megapixel 5-megapixel 5-megapixel-
Resolution1080x2280 pixels750x1334 pixels540x960 pixels-
RAM4GB2GB1GB-
OSAndroid 8.1iOS 9Android 5.1-
Storage128GB16GB8GB-
Rear Camera16-megapixel 12-megapixel 8-megapixel-
Battery Capacity3400mAh1715mAh2600mAh-
general
Release dateApril 2018September 2015February 2015-
Form factorTouchscreenTouchscreenTouchscreen-
Dimensions (mm)156.00 x 75.30 x 7.80138.30 x 67.10 x 7.10144.80 x 72.10 x 8.60-
Weight (g)159.00143.00156.00-
Battery capacity (mAh)340017152600-
ColoursKnight Black, Soybean Meal, Stardust Silver, Garnet RedSilver, Gold, Space Grey, Rose Goldwhite, Grey-
Launched in India-Yes--
Body type-Metal--
Removable battery-NoYes-
display
Screen size (inches)6.204.705.00-
TouchscreenYesYesYes-
Resolution1080x2280 pixels750x1334 pixels540x960 pixels-
Aspect ratio19:916:9--
Pixels per inch (PPI)-326--
hardware
Processor2GHz octa-core1.84GHz dual-core1.2GHz quad-core-
Processor makeHelio P60A9--
RAM4GB2GB1GB-
Internal storage128GB16GB8GB-
Expandable storageYesNoYes-
Expandable storage typemicroSD-microSD-
Expandable storage up to (GB)256-64-
camera
Rear camera16-megapixel (f/1.8)12-megapixel (f/2.2, 1.22-micron)8-megapixel-
Rear flashYesYesLED-
Front camera8-megapixel (f/2.2)5-megapixel (f/2.2)5-megapixel-
Rear autofocus-Phase detection autofocus--
software
Operating systemAndroid 8.1iOS 9Android 5.1-
SkinColorOS 5.0---
connectivity
Wi-FiYesYesYes-
GPSYesYesYes-
BluetoothYes, v 4.20Yes, v 4.20Yes, v 4.00-
USB OTGYesNoYes-
Headphones3.5mm3.5mm3.5mm-
Number of SIMs212-
Wi-Fi standards supported-802.11 a/b/g/n/ac802.11 b/g/n-
NFC-YesYes-
Infrared-NoNo-
Lightning-Yes--
FM-NoYes-
sim 1
SIM TypeNano-SIMNano-SIMMicro-SIM-
GSM/CDMAGSMGSMGSM-
3GYesYesYes-
4G/ LTEYesYesYes-
sim 2
SIM TypeNano-SIM-Micro-SIM-
GSM/CDMAGSM-GSM-
3GYes-Yes-
4G/ LTEYes-No-
sensors
Proximity sensorYesYesYes-
Ambient light sensorYesYesNo-
GyroscopeYesYesNo-
Fingerprint sensor-Yes--
Compass/ Magnetometer-YesYes-
Accelerometer-YesYes-
Barometer-YesNo-
Temperature sensor-NoNo-