Xiaomi Redmi Note 4
Network Technology GSM / HSPA / LTE
2G bands GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands HSDPA 850 / 900 / 1900 / 2100
4G bands LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300)
Speed HSPA, LTE
GPRS Yes
EDGE Yes
Launch Announced 2017, January
Status Available. Released 2017, January
Body Dimensions 151 x 76 x 8.5 mm (5.94 x 2.99 x 0.33 in)
Weight 165 g (5.82 oz)
SIM Dual SIM (Micro-SIM/Nano-SIM, dual stand-by)
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
Platform OS Android 6.0 (Marshmallow), upgradable to 7.0 (Nougat)
Chipset Qualcomm MSM8953 Snapdragon 625
CPU Octa-core 2.0 GHz Cortex-A53
GPU Adreno 506
Memory Card slot microSD, up to 256 GB (uses SIM 2 slot)
Internal 32 GB, 2/3 GB RAM or 64 GB, 4 GB RAM
Camera Primary 13 MP, f/2.0, phase detection autofocus, dual-LED (dual tone) flash, check quality
Features 1.12 µm pixel size, geo-tagging, touch focus, face detection, panorama, HDR
Video 1080p@30fps, 720p@120fps, check quality
Secondary 5 MP, f/2.0, 1080p
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, Wi-Fi Direct, hotspot
Bluetooth 4.1, A2DP, LE
GPS Yes, with A-GPS, GLONASS, BDS
Infrared port Yes
Radio FM radio
USB microUSB 2.0, USB On-The-Go
Features Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Messaging SMS(threaded view), MMS, Email, Push Mail, IM
Browser HTML5
Java No
 - XviD/MP4/H.265 player
- MP3/WAV/eAAC+/Flac player
- Photo/video editor
- Document viewer
Battery   Non-removable Li-Po 4100 mAh battery
Misc Colors Gray, Gold, Black
Price About 160 EUR
Tests Performance Basemark OS II: 1290 / Basemark OS II 2.0: 1050
Basemark X: 10446
Display Contrast ratio: 1503:1 (nominal), 2.714 (sunlight)
Camera Photo / Video
Loudspeaker Voice 67dB / Noise 70dB / Ring 81dB
Audio quality Noise -94.6dB / Crosstalk -94.3dB
Battery life

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