Redmi Note 5 Pro vs Xiaomi Redmi Note 4 vs Vivo Y51 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
Display5.99-inch5.50-inch5.00-inch-
Processor1.8GHz octa-core2GHz octa-core1.2GHz quad-core-
Front Camera20-megapixel 5-megapixel 5-megapixel-
Resolution1080x2160 pixels1080x1920 pixels540x960 pixels-
RAM4GB4GB2GB-
OSAndroid 7.1.1Android 6.0Android 5.0.2-
Storage64GB64GB16GB-
Rear Camera12-megapixel + 5-megapixel 13-megapixel 8-megapixel-
Battery Capacity4000mAh4100mAh2350mAh-
general
Release dateFebruary 2018August 2016November 2015-
Launched in IndiaYesYes--
Form factorTouchscreenTouchscreenTouchscreen-
Body typeMetal---
Dimensions (mm)158.60 x 75.40 x 8.05151.00 x 76.00 x 8.30143.80 x 71.70 x 7.52-
Weight (g)181.00175.00157.00-
Battery capacity (mAh)400041002350-
Removable batteryNoNoNo-
ColoursBlack, Gold, Lake Blue, Rose GoldGold, Grey, Matte BlackWhite-
SAR value1.19---
display
Screen size (inches)5.995.505.00-
TouchscreenYesYesYes-
Resolution1080x2160 pixels1080x1920 pixels540x960 pixels-
Protection typeGorilla Glass---
Aspect ratio18:916:9--
Pixels per inch (PPI)-401--
hardware
Processor1.8GHz octa-core2GHz octa-core1.2GHz quad-core-
Processor makeQualcomm Snapdragon 636Qualcomm Snapdragon 625--
RAM4GB4GB2GB-
Internal storage64GB64GB16GB-
Expandable storageYesYesYes-
Expandable storage typemicroSDmicroSDmicroSD-
Expandable storage up to (GB)128128128-
camera
Rear camera12-megapixel (f/2.2, 1.25-micron) + 5-megapixel (f/2.0, 1.12-micron)13-megapixel (f/2.0, 1.12-micron)8-megapixel-
Rear autofocusPhase detection autofocusPhase detection autofocus--
Rear flashLEDDual LEDLED-
Front camera20-megapixel (f/2.2, 1.0-micron)5-megapixel (f/2.0)5-megapixel-
Front flashLED---
software
Operating systemAndroid 7.1.1Android 6.0Android 5.0.2-
SkinMIUI 9MIUI 8FunTouch OS-
connectivity
Wi-FiYesYesYes-
Wi-Fi standards supported802.11 b/g/n/ac802.11 a/b/g/n--
GPSYesYesYes-
BluetoothYes, v 5.00Yes, v 4.10Yes-
NFCNoNoNo-
InfraredNoYesNo-
USB OTGYesYesNo-
Micro-USBYesYes--
Headphones3.5mm3.5mm3.5mm-
FMYesYesYes-
Number of SIMs222-
sim 1
SIM TypeNano-SIMMicro-SIMMicro-SIM-
GSM/CDMAGSMGSMGSM-
3GYesYesYes-
4G/ LTEYesYesYes-
sim 2
SIM TypeNano-SIMNano-SIMMicro-SIM-
GSM/CDMAGSMGSMGSM-
3GYesYesNo-
4G/ LTEYesYesYes-
sensors
Face unlockYes---
3D face recognitionNo---
Fingerprint sensorYesYes--
Compass/ MagnetometerYesYesNo-
Proximity sensorYesYesYes-
AccelerometerYesYesYes-
Ambient light sensorYesYesYes-
GyroscopeYesYesYes-
BarometerNoNoNo-
Temperature sensorNoNoNo-