Phone Comparison - Motorola RAZR XT910 vs Motorola DROID RAZR XT912 vs Lenovo K900

general General Info

Manufacturer Motorola Motorola Lenovo
Announced October 2011 October 2011 January 2013
Status Available - November 2011 Available - November 2011 Available - April 2013
Colors Black Black, White Black
Form Factor Candybar Candybar Candybar
Dimension 130.7 x 68.9 x 7.1 mm
(5.15 x 2.71 x 0.28 in)
130.7 x 68.9 x 7.1 mm
(5.15 x 2.71 x 0.28 in)
157 x 78 x 6.9 mm
(6.18 x 3.07 x 0.27 in)
Weight 127 g (4.48 oz) 127 g (4.48 oz) 162 g (5.71 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
CDMA2000 1xEV-DO
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 2100
4G Network - LTE 700 -
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v2.3.5 (Gingerbread) Android OS, v2.3.5 (Gingerbread) Android OS, v4.2 (Jelly Bean)
Processor 1.2 GHz dual-core Cortex-A9 CPU, TI OMAP 4430 chipset Dual-core 1.2 GHz Cortex-A9, TI OMAP 4430 Dual-core 2.0 GHz, Intel Atom Z2580
GPU PowerVR SGX540 PowerVR SGX540 PowerVR SGX544
RAM 1 GB 1 GB 2 GB
Internal Memory 16 GB storage 16 GB storage 16 GB
External Memory microSD, up to 32GB microSD, up to 32GB, 16GB card included microSD, up to 32 GB

display Display

Type Super AMOLED capacitive touchscreen Super AMOLED capacitive touchscreen IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.3 inches 4.3 inches 5.5 inches
Resolution 540 x 960 pixels (256 ppi) 540 x 960 pixels (256 ppi) 1080 x 1920 pixels (401 ppi)
Screen-to-Body Ratio 56.67% 56.67% 67.94%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio No No Stereo FM radio
Games Yes Yes Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 8 MP, 3264x2448 pixels 8 MP, 3264x2448 pixels 13 MP, autofocus
Flash LED flash LED flash dual-LED flash
Features Auto focus, Touch-focus, Geo-tagging, Face Detection, Image Stabilization Auto focus, Touch-focus, Geo-tagging, Face Detection, Image Stabilization Geo-tagging, Touch Focus, Face Detection
Video Yes, 1080p@30fps, 480p@120fps Yes, 1080p@30fps, 480p@120fps Yes, 1080p@30fps
Front Camera Yes, 1.3 MP [Similar] 2 MP, 720p videos [Similar] Yes, 2 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps Yes
Edge Class 12 Class 12 Yes
3G HSDPA 14.4 Mbps, HSUPA 5.76 Mbps Rev. A, up to 3.1 Mbps, LTE, HSDPA, HSUPA HSPA+
Bluetooth Yes, v4.0 with LE+EDR Yes, v4.0 with LE+EDR Yes, with A2DP
Wi-Fi Wi-Fi 802.11 b/g/n, dual-band, DLNA, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, dual band, Wi-Fi hotspot
USB Yes, microUSB v2.0 Yes, microUSB v2.0 Yes, microUSB v2.0
GPS Yes, with A-GPS support and GLONASS Yes, with A-GPS support Yes, with A-GPS support
Browser HTML HTML, Adobe Flash HTML5

memory User Memory

Internal 16 GB storage, 1GB RAM 16 GB storage, 1GB RAM 16 GB, 2 GB RAM
Expandable Storage microSD, up to 32GB microSD, up to 32GB, 16GB card included microSD, up to 32 GB

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 Standard battery, Li-Ion Standard battery, Li-Ion Li-Ion battery
Capacity 1780 mAh 1780 mAh 2500 mAh
Stand by Up to 304 h Up to 204 h -
Talk Time Up to 9 h 20 min Up to 12 h 30 min -