Product
Xiaomi Redmi Note 3 (MediaTek)
Xiaomi Redmi Note 3 (MediaTek)
Xiaomi Redmi S2 (Redmi Y2)
Xiaomi Redmi S2 (Redmi Y2)
Battery
Charging 10W wired 10W wired
Music play Up to 60 h -
Stand-by Up to 264 h (3G) -
Type Li-Po 4000 mAh, non-removable Li-Po 3080 mAh, non-removable
Body
Build - Glass front, plastic back, plastic frame
Dimensions 150 x 76 x 8.7 mm (5.91 x 2.99 x 0.34 in) 160.7 x 77.3 x 8.1 mm (6.33 x 3.04 x 0.32 in)
SIM Dual SIM (Micro-SIM, dual stand-by) Nano-SIM + Nano-SIM
Weight 164 g (5.78 oz) 170 g (6.00 oz)
Comms
Bluetooth 4.1, A2DP, LE 4.2, A2DP, LE
Infrared port Yes Yes
NFC No No
Positioning GPS, GLONASS, BDS
Radio Stereo FM radio, recording FM radio
USB microUSB 2.0, OTG microUSB 2.0
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Display
Resolution 1080 x 1920 pixels, 16:9 ratio (~403 ppi density) 720 x 1440 pixels, 18:9 ratio (~269 ppi density)
Size 5.5 inches, 82.6 cm2 (~72.4% screen-to-body ratio) 5.99 inches, 92.6 cm2 (~74.5% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Launch
Announced 2015, November. Released 2015, November 2018, May. Released 2018, May
Status Discontinued Discontinued
Main Camera
Dual - 12 MP, f/2.2, 1.25μm, PDAF 5 MP, f/2.4, (depth)
Features Dual-LED dual-tone flash, HDR, panorama LED flash, panorama, HDR
Single 13 MP, f/2.2, PDAF -
Video 1080p@30fps 1080p@30fps (gyro-EIS)
Memory
Card slot No microSDXC (dedicated slot)
Internal 16GB 2GB RAM, 32GB 3GB RAM 32GB 3GB RAM, 64GB 4GB RAM
  eMMC 5.0 eMMC 5.1
Misc
Colors Silver, Gray, Gold Gray, Gold, Rose Gold, Mesmerising Blue, Stunning Black
Models - M1803E6G, M1803E6H, M1803E6I
SAR - 0.43 W/kg (head)     1.58 W/kg (body)    
SAR EU 0.33 W/kg (head)     -
Network
2G bands GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G bands 1, 3, 7, 38, 39, 40, 41 1, 3, 4, 5, 7, 8, 20, 38, 40 - Global
Speed HSPA, LTE HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Technology GSM / HSPA / LTE GSM / CDMA / HSPA / LTE
  TD-SCDMA 1, 3, 5, 7, 8, 34, 38, 39, 40, 41 - China
Our Tests
Audio quality Noise -94.2dB / Crosstalk -93.7dB Noise -90.3dB / Crosstalk -93.1dB
Battery (old) Endurance rating 72h Endurance rating 92h
Camera Photo / Video Photo / Video
Display Contrast ratio: 953 (nominal), 2.249 (sunlight) Contrast ratio: 1072:1 (nominal), 3.077 (sunlight)
Loudspeaker Voice 66dB / Noise 66dB / Ring 75dB Voice 68dB / Noise 69dB / Ring 82dB
Performance Basemark OS II 2.0: 1018Basemark X: 8540 AnTuTu: 77488 (v7) GeekBench: 4313 (v4.4) GFXBench: 7.4fps (ES 3.1 onscreen)
Platform
Chipset Mediatek MT6795 Helio X10 (28 nm) Qualcomm MSM8953 Snapdragon 625 (14 nm)
CPU Octa-core 2.0 GHz Cortex-A53 Octa-core 2.0 GHz Cortex-A53
GPU PowerVR G6200 Adreno 506
OS Android 5.0.2 (Lollipop), MIUI 7 Android 8.1 (Oreo), upgradable to Android 9, MIUI 12
Selfie camera
Features - HDR, LED flash
Single 5 MP, f/2.0 16 MP, f/2.5, (wide), 1/3.06" 1.0µm
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes
  24-bit/192kHz audio -