Product
Xiaomi Redmi Note 2
Xiaomi Redmi Note 2
Xiaomi Redmi Note 4 (MediaTek)
Xiaomi Redmi Note 4 (MediaTek)
Battery
Charging 10W wired -
Music play Up to 46 h -
Stand-by Up to 144 h (3G) -
Talk time Up to 11 h 30 min (3G) -
Type Li-Po 3060 mAh, removable Li-Po 4100 mAh, non-removable
Body
Build Glass front, plastic back, plastic frame Glass front, aluminum back, aluminum frame
Dimensions 152 x 76 x 8.3 mm (5.98 x 2.99 x 0.33 in) 151 x 76 x 8.4 mm (5.94 x 2.99 x 0.33 in)
SIM Dual SIM (Micro-SIM, dual stand-by) Nano-SIM + Micro-SIM
Weight 160 g (5.64 oz) 175 g (6.17 oz)
Comms
Bluetooth 4.0, A2DP, LE 4.2, A2DP, LE
Infrared port Yes Yes
NFC No No
Positioning GPS, GLONASS, BDS GPS, GLONASS, BDS
Radio Stereo FM radio FM radio
USB microUSB 2.0, OTG microUSB 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Display
Resolution 1080 x 1920 pixels, 16:9 ratio (~403 ppi density) 1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
Size 5.5 inches, 82.6 cm2 (~71.5% screen-to-body ratio) 5.5 inches, 83.4 cm2 (~72.7% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Accelerometer, gyro, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Launch
Announced 2015, August. Released 2015, August 2016, August. Released 2016, August
Status Discontinued Discontinued
Main Camera
Features LED flash, HDR, panorama Dual-LED dual-tone flash, HDR, panorama
Single 13 MP, f/2.2, PDAF 13 MP, f/2.0, PDAF
Video 1080p@30fps 1080p@30fps, 720p@120fps
Memory
Card slot microSDXC (dedicated slot) - Chinese version only microSDXC (uses shared SIM slot)
Internal 16GB 2GB RAM (Standard), 32GB 2GB RAM (Prime) 16GB 2GB RAM (Standard), 64GB 3GB RAM (High), 64GB 4GB RAM (Exclusive)
  eMMC 5.0 -
Misc
Colors White, blue, yellow, pink, mint green Silver, Gray, Gold, Blue, Black
Models 2015051 -
SAR 0.34 W/kg (head)     0.45 W/kg (body)     -
Network
2G bands GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G bands 1, 3, 7, 38, 39, 40, 41 1, 3, 5, 7, 8, 38, 39, 40, 41
Speed HSPA, LTE Cat4 150/50 Mbps HSPA, LTE
Technology GSM / HSPA / LTE GSM / CDMA / HSPA / LTE
  TD-SCDMA CDMA 800 & TD-SCDMA
Our Tests
Audio quality Noise -96.1dB / Crosstalk -94.8dB -
Battery (old) Endurance rating 49h Endurance rating 83h
Camera Photo / Video Photo / Video
Display Contrast ratio: 953 (nominal), 2.166 (sunlight) Contrast ratio: 1158 (nominal), 2.145 (sunlight)
Loudspeaker Voice 66dB / Noise 66dB / Ring 76dB Voice 64dB / Noise 67dB / Ring 76dB
Performance Basemark OS II 2.0: 1063Basemark X: 8518 Basemark OS II 2.0: 1728Basemark X: 13666
Platform
Chipset Mediatek MT6795 Helio X10 (28 nm) Mediatek MT6797 Helio X20 (20 nm)
CPU Octa-core 2.0 GHz Cortex-A53 - Redmi Note 2Octa-core 2.2 GHz Cortex-A53 - Redmi Note 2 Prime Deca-core 2.1 GHz
GPU PowerVR G6200 Mali-T880 MP4
OS Android 5.0 (Lollipop), MIUI 7 Android 6.0 (Marshmallow), MIUI 10
Selfie camera
Single 5 MP, f/2.0 5 MP, f/2.0
Video 720p 720p
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes
  - 24-bit/192kHz audio