Phone Comparison - Lenovo K900 vs Nokia X2 vs Xiaomi Redmi 1S

general General Info

Manufacturer Lenovo Nokia Xiaomi
Announced January 2013 June 2014 May 2014
Status Available - April 2013 Available - June 2014 Available - May 2014
Colors Black Bright green, bright red, cyan, yellow, black, white Black, Chinese Red, Metallic Gray/ blue, green, yellow panels
Form Factor Candybar Candybar Candybar
Dimension 157 x 78 x 6.9 mm
(6.18 x 3.07 x 0.27 in)
121.7 x 68.3 x 11.1 mm
(4.79 x 2.69 x 0.44 in)
137 x 69 x 9.9 mm
(5.39 x 2.72 x 0.39 in)
Weight 162 g (5.71 oz) 150 g (5.29 oz) 158 g (5.57 oz)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 / 1900
3G Network HSDPA 2100 HSDPA 900 / 2100 HSDPA 1900 / 2100
Messaging SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM
Build Features - - Scratch-resistant glass
- ClearBlack display
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hardware Hardware and OS

OS Android OS, v4.2 (Jelly Bean) Nokia X Software Platform 2.0 Based on Android OS, v4.3 (Jelly Bean) Android OS, v4.3 (Jelly Bean)
Processor Dual-core 2.0 GHz, Intel Atom Z2580 Dual-core 1.2 GHz Cortex-A7, Qualcomm MSM8210 Snapdragon 200 Quad-core 1.6 GHz Cortex-A7, Qualcomm MSM8228 Snapdragon
GPU PowerVR SGX544 Adreno 302 Adreno 305
RAM 2 GB 1 GB 1 GB
Internal Memory 16 GB 4 GB 8 GB
External Memory microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type IPS LCD capacitive touchscreen IPS LCD capacitive touchscreen IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 2
Colors 16M colors 16M colors 16M colors
Size 5.5 inches 4.3 inches 4.7 inches
Resolution 1080 x 1920 pixels (401 ppi) 480 x 800 pixels (217 ppi) 720 x 1280 pixels (312 ppi)
Screen-to-Body Ratio 67.94% 63.29% 64.61%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio Stereo FM radio Stereo FM Radio with RDS FM radio
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 13 MP, autofocus 5 MP, 2592 х 1944 pixels 8 MP, 3264 x 2448 pixels
Flash dual-LED flash LED Flash LED flash
Features Geo-tagging, Touch Focus, Face Detection 1/4'' Sensor Size, Geo-tagging, Touch Focus, Panorama, Face Detection Auto focus, 1.4 µm Pixel Size, Geo-tagging, Touch Focus, Face And Smile Detection, HDR
Video Yes, 1080p@30fps Yes, 720p@30fps 1080p@30fps
Front Camera Yes, 2 MP [Similar] Yes, VGA, 480p [Similar] 1.3 MP, 720p@30fps [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Up to 85.6 kbps Yes
Edge Yes Up to 236.8 kbps Yes
3G HSPA+ HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSDPA, HSUPA
Bluetooth Yes, with A2DP Yes, v4.0 with A2DP, HS v4.0, A2DP, LE
Wi-Fi Wi-Fi 802.11 a/b/g/n, dual band, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot
USB Yes, microUSB v2.0 Yes, microUSB v2.0 microUSB v2.0, USB On-the-go
GPS Yes, with A-GPS support Yes, with A-GPS support Yes, with A-GPS
Browser HTML5 HTML HTML5

memory User Memory

Internal 16 GB, 2 GB RAM 4 GB, 1 GB RAM 8 GB, 1 GB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 GB
USB OTG - - Supported

Apps Sensors

Fingerprint fingerprint not supported fingerprint not supported fingerprint not supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
NFC NFC not supported NFC not supported NFC not supported

battery Battery

Type Li-Ion battery Li-Ion Battery Li-Po Battery
Capacity 2500 mAh 1800 mAh 2000 mAh
Stand by - Up to 552 h -
Talk Time - Up to 10 h (2G)
Up to 13 h (3G)
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