It was launched in August 2016. The phone comes with a 5.50-inch touchscreen display with a resolution of 1080 pixels by 1920 pixels at a PPI of 401 pixels per inch.

The Xiaomi Redmi Note 4 is motorized by 2.1GHz MediaTek Helio X20 MT6797 processor and it comes with 2GB of RAM. The phone packs 16GB of inner storage that can be extended up to 128GB via a microSD card. As per as the cameras are concerned, the Xiaomi Redmi Note 4 packs a 13-megapixel main camera on the rear and a 5-megapixel front shooter for selfies.
It runs Android 6.0 and is motorized by a 4100mAh non detachable battery. It measures 151.00 x 76.00 x 8.30 (height x width x thickness) and weighs 175.00 grams.

NETWORK Technology GSM / CDMA / HSPA / EVDO / LTE
LAUNCH Announced 2016, August
Status Available. Released 2016, August
DISPLAY Type IPS LCD capacitive touchscreen, 16M colors
Size 5.5 inches (~72.7% screen-to-body ratio)
Resolution 1080 x 1920 pixels (~401 ppi pixel density)
Multitouch Yes
– MIUI 8.0
FEATURES Sensors Fingerprint, accelerometer, gyro, proximity, compass
Messaging SMS(threaded view), MMS, Email, Push Mail, IM
Browser HTML5
Java No
– Fast battery charging
– XviD/MP4/H.265 player
– MP3/WAV/eAAC+/Flac player
– Photo/video editor
– Document viewer
PLATFORM OS Android OS, v6.0 (Marshmallow)
Chipset Mediatek MT6797 Helio X20
CPU Deca-core 2.1 GHz
GPU Mali-T880 MP4
MEMORY Card slot microSD, up to 256 GB (uses SIM 2 slot)
Internal 16 GB, 2 GB RAM – Standard edition
64 GB, 3 GB RAM – High edition
CAMERA Primary 13 MP, f/2.0, phase detection autofocus, dual-LED (dual tone) flash
SOUND Alert types Vibration; MP3, WAV ringtones
Loudspeaker Yes
3.5mm jack Yes
– 24-bit/192kHz audio
– Active noise cancellation with dedicated mic
COMMS WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot
Bluetooth v4.2, A2DP, LE
GPS Yes, with A-GPS, GLONASS, BDS
Infrared port Yes
Radio To be confirmed
USB microUSB v2.0, USB On-The-Go
BODY Dimensions 151 x 76 x 8.4 mm (5.94 x 2.99 x 0.33 in)
Weight 175 g (6.17 oz)
SIM Dual SIM (Micro-SIM/Nano-SIM, dual stand-by)
BATTERY Non-removable Li-Po 4100 mAh battery
MISC Colors Silver, Gray, Gold
Price group 3/10
TESTS Performance Basemark OS II 2.0: 1728 / Basemark X: 13666
Display Contrast ratio: 1158 (nominal), 2.145 (sunlight)
Camera Photo / Video
Loudspeaker Voice 64dB / Noise 67dB / Ring 76dB
Battery life
Endurance rating 83h
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