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Xiaomi Redmi 1S

Xiaomi Redmi 2

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Xiaomi Redmi 1S
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Xiaomi Redmi 1S

Xiaomi Redmi 2

Network
Technology GSM / HSPA GSM / HSPA / LTE
2G bands GSM 900 / 1800 / 1900 GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 900 / 2100 HSDPA 850 / 1900 / 2100
  TD-SCDMA
4G Network 3, 7, 38, 39, 40, 41
Speed HSPA HSPA, LTE Cat4 150/50 Mbps
Launch
Announced 2014, May. Released 2014, May 2015, January. Released 2015, January
Status Discontinued Discontinued
Body
Dimensions 137 x 69 x 9.9 mm (5.39 x 2.72 x 0.39 in) 134 x 67.2 x 9.4 mm (5.28 x 2.65 x 0.37 in)
Weight 158 g (5.57 oz) 133 g (4.69 oz)
Build Glass front (Asahi Dragontrail), plastic back, plastic frame Glass front (Gorilla Glass 2), plastic back, plastic frame
SIM Dual SIM (Mini-SIM, dual stand-by) Dual SIM (Micro-SIM, dual stand-by)
Display
Type IPS LCD IPS LCD
Size 4.7 inches, 60.9 cm2 (~64.4% screen-to-body ratio) 4.7 inches, 60.9 cm2 (~67.6% screen-to-body ratio)
Resolution 720 x 1280 pixels, 16:9 ratio (~312 ppi density) 720 x 1280 pixels, 16:9 ratio (~312 ppi density)
Protection Asahi Dragontrail Glass Corning Gorilla Glass 2
Platform
OS Android 4.3 (Jelly Bean), upgradable to 4.4.4 (KitKat), MIUI 9.2 Android 4.4.4 (KitKat), MIUI 6.0
Chipset Qualcomm MSM8228 Snapdragon 400 (28 nm) Qualcomm MSM8916 Snapdragon 410 (28 nm)
CPU Quad-core 1.6 GHz Cortex-A7 Quad-core 1.2 GHz Cortex-A53
GPU Adreno 305 Adreno 306
Memory
Card slot microSDXC (dedicated slot) microSDHC (dedicated slot)
Internal 8GB 1GB RAM 8GB 1GB RAM, 16GB 2GB RAM
 eMMC 4.5 eMMC 4.5
Main Camera
Modules 8 MP, f/2.2, 1/3.2", 1.4µm, AF 8 MP, f/2.2, 28mm (wide), 1/3.2", 1.4µm, AF
Features LED flash, HDR LED flash, HDR
Video 1080p@30fps 1080p@30fps
Selfie Camera
Modules 1.6 MP 2 MP
Video 720p@30fps 720p
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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, hotspot
Bluetooth 4.0, A2DP, LE 4.0, A2DP, LE
Positioning GPS, GLONASS GPS, GLONASS, BDS
NFC No No
Infrared port No No
Radio FM radio Stereo FM radio
USB microUSB 2.0, OTG microUSB 2.0, OTG
Features
Sensors Accelerometer, gyro, proximity, compass Accelerometer, gyro, proximity, compass
Battery
Type Li-Ion 2000 mAh, removable Li-Po 2200 mAh, removable
Charging 10W wired, QC1
Misc
Colors Black, Chinese Red, Metallic Gray/ blue, green, yellow panels Black, White, Yellow, Pink, Green
SAR 0.70 W/kg (head)     0.70 W/kg (body)    
Models 2014011 2014817, 2014818, 2014816
Price About 90 EUR About 130 EUR
Tests
Performance Basemark OS II 2.0: 454 Basemark OS II 2.0: 511
Display Contrast ratio: 1370 (nominal), 1.350 (sunlight) Contrast ratio: 974:1 (nominal), 1.763 (sunlight)
Camera Compare PHOTO / Compare VIDEO
Loudspeaker Voice 66dB / Noise 65dB / Ring 71dB Voice 70dB / Noise 70dB / Ring 77dB
Audio quality Noise -95.4dB / Crosstalk -82.3dB Noise -94.8dB / Crosstalk -95.8dB
Battery (old) Endurance rating 51h Endurance rating 55h

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