Phone Comparison - Samsung I9300 Galaxy S III (S3) vs Lenovo K900 vs Karbonn A21

general General Info

Manufacturer Samsung Lenovo Karbonn
Announced May 2012 January 2013 2012
Status Available - May 2012 Available - April 2013 Available
Colors Blue, White Black Pearl White
Form Factor Candybar Candybar Candybar
Dimension 136.6 x 70.6 x 8.6 mm
(5.38 x 2.78 x 0.34 in)
157 x 78 x 6.9 mm
(6.18 x 3.07 x 0.27 in)
-
Weight 133 g (4.69 oz) 162 g (5.71 oz) -
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 2100 HSDPA 2100
4G Network LTE (regional) - -
Messaging SMS, MMS, EMail, IM SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM

hardware Hardware and OS

OS Android OS, v4.0.4 (Ice Cream Sandwich) Android OS, v4.2 (Jelly Bean) Android OS, v4.0 (Ice Cream Sandwich)
Processor Quad-core 1.4 GHz Cortex-A9, Exynos 4212 Quad Dual-core 2.0 GHz, Intel Atom Z2580 Dual-core 1.2 GHz
GPU Mali-400MP PowerVR SGX544 -
RAM 1 GB 2 GB 512 MB
Internal Memory 16/32/64 GB storage 16 GB 4 GB
External Memory microSD, up to 64 GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type Super AMOLED capacitive touchscreen IPS LCD capacitive touchscreen TFT capacitive touchscreen
Colors 16M colors 16M colors 256K colors
Size 4.8 inches 5.5 inches 4.5 inches
Resolution 720 x 1280 pixels (306 ppi) 1080 x 1920 pixels (401 ppi) 480 x 800 pixels (207 ppi)
Screen-to-Body Ratio 65.84% 67.94% -
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 8 MP, 3264x2448 pixels 13 MP, autofocus 5 MP, 2592х1944 pixels
Flash LED flash dual-LED flash LED flash
Features Auto focus, Simultaneous HD Video And Image Recording, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization Geo-tagging, Touch Focus, Face Detection Auto focus, Geo-tagging, Face Detection
Video Yes, 1080p@30fps Yes, 1080p@30fps Yes
Front Camera Yes, 1.9 MP, 720p@30fps [Similar] Yes, 2 MP [Similar] Yes, 1.3 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps Yes Yes
Edge Class 12 Yes Yes
3G HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSPA+ HSDPA, 7.2 Mbps
Bluetooth Yes, v4.0 with A2DP, EDR Yes, with A2DP Yes, v2.1 with A2DP
Wi-Fi Wi-Fi 802.11 a/b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, dual band, Wi-Fi hotspot Wi-Fi 802.11 b/g/n
USB Yes, microUSB v2.0 (MHL), USB On-the-go 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, Adobe Flash HTML5 HTML

memory User Memory

Internal 16/32/64 GB storage, 1 GB RAM 16 GB, 2 GB RAM 4 GB, 512 MB RAM
Expandable Storage microSD, up to 64 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 supported NFC not supported NFC not supported

battery Battery

Type Standard battery, Li-Ion Li-Ion battery Li-Ion Battery
Capacity 2100 mAh 2500 mAh 1800 mAh
Stand by Up to 830Hr (2G)/up to 770Hr hours (3G) - Up to 200 h
Talk Time Up to 1350Min (2G)/up to 700Min hours (3G) - Up to 5 h