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Xiaomi Redmi S2 (Redmi Y2)
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Xiaomi Redmi 2

Xiaomi Redmi S2 (Redmi Y2)
Our video review on Youtube
Network
Technology GSM / HSPA / LTE GSM / CDMA / HSPA / LTE
2G bands GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  CDMA 800 & TD-SCDMA - China
3G Network HSDPA 850 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
  TD-SCDMA
4G Network 3, 7, 38, 39, 40, 41 1, 3, 4, 5, 7, 8, 20, 38, 40 - Global
  1, 3, 5, 40, 41 - India
  1, 3, 5, 7, 8, 34, 38, 39, 40, 41 - China
Speed HSPA, LTE Cat4 150/50 Mbps HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Launch
Announced 2015, January. Released 2015, January 2018, May
Status Discontinued Available. Released 2018, May
Body
Dimensions 134 x 67.2 x 9.4 mm (5.28 x 2.65 x 0.37 in) 160.7 x 77.3 x 8.1 mm (6.33 x 3.04 x 0.32 in)
Weight 133 g (4.69 oz) 170 g (6.00 oz)
Build Glass front (Gorilla Glass 2), plastic back, plastic frame Glass front, plastic back, plastic frame
SIM Dual SIM (Micro-SIM, dual stand-by) Dual SIM (Nano-SIM, dual stand-by)
Display
Type IPS LCD IPS LCD
Size 4.7 inches, 60.9 cm2 (~67.6% screen-to-body ratio) 5.99 inches, 92.6 cm2 (~74.5% screen-to-body ratio)
Resolution 720 x 1280 pixels, 16:9 ratio (~312 ppi density) 720 x 1440 pixels, 18:9 ratio (~269 ppi density)
Protection Corning Gorilla Glass 2
Platform
OS Android 4.4.4 (KitKat), MIUI 6.0 Android 8.1 (Oreo), upgradable to Android 9, MIUI 12
Chipset Qualcomm MSM8916 Snapdragon 410 (28 nm) Qualcomm MSM8953 Snapdragon 625 (14 nm)
CPU Quad-core 1.2 GHz Cortex-A53 Octa-core 2.0 GHz Cortex-A53
GPU Adreno 306 Adreno 506
Memory
Card slot microSDHC (dedicated slot) microSDXC (dedicated slot)
Internal 8GB 1GB RAM, 16GB 2GB RAM 32GB 3GB RAM, 64GB 4GB RAM
 eMMC 4.5 eMMC 5.1
Main Camera
Modules 8 MP, f/2.2, 28mm (wide), 1/3.2", 1.4µm, AF 12 MP, f/2.2, 1.25μm, PDAF
5 MP, f/2.4, (depth)
Features LED flash, HDR LED flash, panorama, HDR
Video 1080p@30fps 1080p@30fps (gyro-EIS)
Selfie Camera
Modules 2 MP 16 MP, f/2.5, (wide), 1/3.06" 1.0µm
Features HDR, LED flash
Video 720p 1080p@30fps
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Sound
Loudspeaker Yes Yes
3.5mm jack Yes Yes
Comms
WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth 4.0, A2DP, LE 4.2, A2DP, LE
Positioning GPS, GLONASS, BDS
NFC No No
Infrared port No Yes
Radio Stereo FM radio FM radio
USB microUSB 2.0, OTG microUSB 2.0
Features
Sensors Accelerometer, gyro, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Battery
Type Li-Po 2200 mAh, removable Li-Po 3080 mAh, non-removable
Charging 10W wired, QC1 10W wired
Misc
Colors Black, White, Yellow, Pink, Green Gray, Gold, Rose Gold, Mesmerising Blue, Stunning Black
SAR 0.70 W/kg (head)     0.70 W/kg (body)     0.43 W/kg (head)     1.58 W/kg (body)    
Models 2014817, 2014818, 2014816 M1803E6G, M1803E6H, M1803E6I
Price About 130 EUR About 160 EUR
Tests
Performance Basemark OS II 2.0: 511 AnTuTu: 77488 (v7)
GeekBench: 4313 (v4.4)
GFXBench: 7.4fps (ES 3.1 onscreen)
Display Contrast ratio: 974:1 (nominal), 1.763 (sunlight) Contrast ratio: 1072:1 (nominal), 3.077 (sunlight)
Camera Compare PHOTO / Compare VIDEO
Loudspeaker Voice 70dB / Noise 70dB / Ring 77dB Voice 68dB / Noise 69dB / Ring 82dB
Audio quality Noise -94.8dB / Crosstalk -95.8dB Noise -90.3dB / Crosstalk -93.1dB
Battery (old) Endurance rating 55h Endurance rating 92h

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