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Lenovo A820

Xiaomi Redmi 1S

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Lenovo A820
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Lenovo A820

Xiaomi Redmi 1S

Network
Technology GSM / HSPA GSM / HSPA
2G bands GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 / 1900
3G Network HSDPA 900 / 2100 HSDPA 900 / 2100
Speed HSPA HSPA
Launch
Announced 2013. Released 2013 2014, May. Released 2014, May
Status Discontinued Discontinued
Body
Dimensions 135 x 68.2 x 9.9 mm (5.31 x 2.69 x 0.39 in) 137 x 69 x 9.9 mm (5.39 x 2.72 x 0.39 in)
Weight 151 g (5.33 oz) 158 g (5.57 oz)
Build Glass front (Asahi Dragontrail), plastic back, plastic frame
SIM Dual SIM (Mini-SIM, dual stand-by) Dual SIM (Mini-SIM, dual stand-by)
Display
Type IPS LCD IPS LCD
Size 4.5 inches, 55.8 cm2 (~60.6% screen-to-body ratio) 4.7 inches, 60.9 cm2 (~64.4% screen-to-body ratio)
Resolution 540 x 960 pixels, 16:9 ratio (~245 ppi density) 720 x 1280 pixels, 16:9 ratio (~312 ppi density)
Protection Asahi Dragontrail Glass
Platform
OS Android 4.1.2 (Jelly Bean) Android 4.3 (Jelly Bean), upgradable to 4.4.4 (KitKat), MIUI 9.2
Chipset Mediatek MT6589 (28 nm) Qualcomm MSM8228 Snapdragon 400 (28 nm)
CPU Quad-core 1.2 GHz Cortex-A7 Quad-core 1.6 GHz Cortex-A7
GPU PowerVR SGX544 Adreno 305
Memory
Card slot microSDHC (dedicated slot) microSDXC (dedicated slot)
Internal 4GB 1GB RAM 8GB 1GB RAM
  eMMC 4.5
Main Camera
Modules 8 MP, AF 8 MP, f/2.2, 1/3.2", 1.4µm, AF
Features LED flash, HDR
Video 720p 1080p@30fps
Selfie Camera
Modules No 1.6 MP
Video 720p@30fps
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Sound
Loudspeaker Yes Yes
3.5mm jack Yes Yes
Comms
WLAN Wi-Fi 802.11 b/g/n, hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Bluetooth Yes 4.0, A2DP, LE
Positioning GPS GPS, GLONASS
NFC No No
Infrared port No No
Radio FM radio FM radio
USB microUSB 2.0 microUSB 2.0, OTG
Features
Sensors Accelerometer, proximity Accelerometer, gyro, proximity, compass
Battery
Type Li-Ion 2000 mAh, removable Li-Ion 2000 mAh, removable
Misc
Colors Black Black, Chinese Red, Metallic Gray/ blue, green, yellow panels
SAR EU 0.37 W/kg (head)    
Models 2014011
Price About 110 EUR About 90 EUR
Tests
Performance Basemark OS II 2.0: 454
Display Contrast ratio: 1370 (nominal), 1.350 (sunlight)
Loudspeaker Voice 66dB / Noise 65dB / Ring 71dB
Audio quality Noise -95.4dB / Crosstalk -82.3dB
Battery (old) Endurance rating 51h

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