Realme U1 vs Oppo A7 vs Oppo R15x comparison

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ratings
Overall NDTV RatingRead ReviewRead Review--
Design Rating--
Display Rating--
Software Rating--
Performance Rating--
Battery Life Rating--
Camera Rating--
Value for Money Rating--
key specs
Display6.30-inch6.20-inch6.40-inch-
Processor2.1GHz octa-core-octa-core-
Front Camera25-megapixel 16-megapixel25-megapixel-
Resolution1080x2340 pixels---
RAM4GB4GB6GB-
OSAndroid 8.1 OreoAndroid 8.1Android Oreo-
Storage64GB64GB128GB-
Rear Camera13-megapixel + 2-megapixel 13-megapixel + 2-megapixel 16-megapixel + 2-megapixel-
Battery Capacity3500mAh4230mAh3500mAh-
general
Release dateNovember 2018November 2018November 2018-
Launched in IndiaYesYes--
Form factorTouchscreenTouchscreen--
Dimensions (mm)157.00 x 74.00 x 8.00155.90 x 75.40 x 8.10--
Weight (g)168.00168.00--
Battery capacity (mAh)350042303500-
Removable batteryNoNo--
Wireless chargingNo---
ColoursAmbitious Black, Brave Blue, and Fiery GoldGlaring Gold, Glaze BlueNebula, Ice Blue-
SAR value1.311.37--
Body type-Plastic--
display
Screen size (inches)6.306.206.40-
TouchscreenYesYesYes-
Resolution1080x2340 pixels---
Protection typeGorilla Glass---
Aspect ratio19.5:919.5:9--
Pixels per inch (PPI)409---
hardware
Processor2.1GHz octa-core-octa-core-
Processor makeMediaTek Helio P70Qualcomm Snapdragon 450Qualcomm Snapdragon 660-
RAM4GB4GB6GB-
Internal storage64GB64GB128GB-
Expandable storageYesYes--
Expandable storage typemicroSDmicroSD--
Expandable storage up to (GB)256256--
Dedicated microSD slotYesYes--
camera
Rear camera13-megapixel (f/2.2) + 2-megapixel (f/2.4)13-megapixel (f/2.2) + 2-megapixel (f/2.4)16-megapixel + 2-megapixel-
Rear flashLEDYes--
Front camera25-megapixel (f/2.0)16-megapixel25-megapixel-
Rear autofocus-Yes--
Front autofocus-No--
Front flash-No--
software
Operating systemAndroid 8.1 OreoAndroid 8.1Android Oreo-
SkinColorOS 5.2ColorOS 5.2ColorOS 5.2-
connectivity
Wi-FiYesYesYes-
Wi-Fi standards supported802.11 a/b/g/n/ac802.11 a/b/g/n--
GPSYesYesYes-
BluetoothYes, v 4.20Yes, v 4.20Yes-
USB OTGYesYes--
Micro-USBYesYes--
Headphones3.5mm3.5mm3.5mm-
FMYesYes--
Number of SIMs22--
Active 4G on both SIM cardsYesYes--
sim 1
SIM TypeNano-SIM---
GSM/CDMAGSMGSM--
3GYesYes--
4G/ LTEYesYes--
sim 2
SIM TypeNano-SIM---
GSM/CDMAGSMGSM--
3GYesYes--
4G/ LTEYesYes--
sensors
Face unlockYesYes--
Fingerprint sensorYesYes--
Compass/ MagnetometerYesYes--
Proximity sensorYesYes--
AccelerometerYesYes--
Ambient light sensorYesYes--
GyroscopeYesYes--