Phone Comparison - Lenovo K900 vs Sony Xperia T2 Ultra vs Xiaomi Redmi Note 4G

general General Info

Manufacturer Lenovo Sony Xiaomi
Announced January 2013 January 2014 August 2014
Status Available - April 2013 Available - January 2014 Available - November 2014
Colors Black Black, White, Purple Black/White
Form Factor Candybar Candybar Candybar
Dimension 157 x 78 x 6.9 mm
(6.18 x 3.07 x 0.27 in)
165.2 x 83.8 x 7.7 mm
(6.5 x 3.3 x 0.3 in)
154 x 78.7 x 9.5 mm
(6.06 x 3.1 x 0.37 in)
Weight 162 g (5.71 oz) 171.7 g / 172.4 g (6.03.0.25 oz / 6.07.0.14 oz) 199 g (7.02 oz)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - all versions GSM 900 / 1800 / 1900
3G Network HSDPA 2100 HSDPA 850 / 900 / 2100 - D5303
HSDPA 850 / 900 / 1700 / 1900 / 2100 - D5306
TD-SCDMA 1900 / 2000
4G Network - LTE 800 / 850 / 900 / 1800 / 2100 / 2600 - D5303 TD-LTE 1900 / 2300 / 2600
Messaging SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v4.2 (Jelly Bean) Android OS, v4.3 (Jelly Bean) Android OS, v4.2 (Jelly Bean)
Processor Dual-core 2.0 GHz, Intel Atom Z2580 Quad-core 1.4 GHz, Qualcomm MSM8928 Quad-core 1.6 GHz Cortex-A7, Qualcomm MSM8928 Snapdragon 400
GPU PowerVR SGX544 - Adreno 305
RAM 2 GB 1 GB 2 GB
Internal Memory 16 GB 8 GB 8 GB
External Memory microSD, up to 32 GB microSD, up to 32 GB microSD, up to 64 GB

display Display

Type IPS LCD capacitive touchscreen TFT capacitive touchscreen, TRILUMINOS™ Display, Mobile BRAVIA engine 2 IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 5.5 inches 6.0 inches 5.5 inches
Resolution 1080 x 1920 pixels (401 ppi) 720 x 1280 pixels (245 ppi) 720 x 1280 pixels (267 ppi)
Screen-to-Body Ratio 67.94% 71.55% 68.82%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio Stereo FM radio 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 13 MP, 4128 x 3096 pixels 13 MP, 4128 x 3096 pixels
Flash dual-LED flash LED flash LED flash
Features Geo-tagging, Touch Focus, Face Detection Auto focus, Geo-tagging, Touch Focus, Face Detection, Image Stabilization, HDR, Sweep Panorama Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, HDR
Video Yes, 1080p@30fps Yes, 1080p@30fps, video stabilization, HDR 1080p@30fps
Front Camera Yes, 2 MP [Similar] Yes, 1.1 MP, 720p@30fps [Similar] 5 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Up to 107 kbps Yes
Edge Yes Up to 296 kbps Yes
3G HSPA+ HSDPA, 42 Mbps; HSUPA, 5.76 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL TD-SCDMA; LTE
Bluetooth Yes, with A2DP Yes, v4.0 with A2DP v4.0, A2DP, LE
Wi-Fi Wi-Fi 802.11 a/b/g/n, dual band, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, 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 and GLONASS Yes, with A-GPS, GLONASS
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 16 GB, 2 GB RAM 8 GB, 1 GB RAM 8 GB, 2 GB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 32 GB microSD, up to 64 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 supported NFC not supported

battery Battery

Type Li-Ion battery Non-removable Li-Ion Battery Li-Po Battery
Capacity 2500 mAh 3000 mAh 3200 mAh
Stand by - Up to 1071 h (2G)
Up to 1046 h (3G)
Up to 775 h (3G)
Talk Time - Up to 14 h (2G)
Up to 24 h (3G)
Up to 38 h (2G)
Up to 14 h (3G)