Phone Comparison - Karbonn A21 vs Alcatel One Touch Star

Karbonn A21
karbonn a21
Alcatel One Touch Star
alcatel one touch star
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general General Info

Manufacturer Karbonn Alcatel
Announced 2012 February 2013
Status Available Available - March 2013
Colors Pearl White Black, White, Orange
Form Factor Candybar Candybar
Dimension - 117.9 x 60.8 x 9.7 mm
(4.64 x 2.39 x 0.38 in)
Weight - 119.5 g (4.2.0.18 oz)
2G Network GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - 6010
GSM 850 / 900 / 1800 / 1900 - 6010D (SIM 1 & SIM 2)
3G Network HSDPA 2100 HSDPA 900 / 2100
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v4.0 (Ice Cream Sandwich) Android OS, v4.1 (Jelly Bean)
Processor Dual-core 1.2 GHz [Similar] Dual-core 1 GHz [Similar]
GPU - -
RAM 512 MB [Browse Similar] 512 MB [Browse Similar]
Internal Memory 4 GB 4 GB (2.4 GB user available)
External Memory microSD, up to 32 GB microSD, up to 32 GB

display Display

Type TFT capacitive touchscreen AMOLED capacitive touchscreen
Colors 256K colors 16M colors
Size 4.5 inches [Similar] 4.0 inches [Similar]
Resolution 480 x 800 pixels (207 ppi) [Similar] 480 x 800 pixels (233 ppi) [Similar]
Screen-to-Body Ratio - 63.66%
Multi-Touch yes yes

multimedia Multimedia

3.5mm Jack yes yes
Radio No -
Games Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes

camera Camera

Rear Camera 5 MP, 2592х1944 pixels [Similar] 5 MP, 2592х1944 pixels [Similar]
Flash LED flash LED flash
Features Auto focus, Geo-tagging, Face Detection Auto focus, Geo-tagging
Video Yes Yes
Front Camera Yes, 1.3 MP [Similar] Yes, VGA [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes
Edge Yes Yes
3G HSDPA, 7.2 Mbps HSDPA, HSUPA
Bluetooth Yes, v2.1 with A2DP Yes, v4.0 with A2DP
Wi-Fi Wi-Fi 802.11 b/g/n Wi-Fi 802.11 b/g/n, Wi-Fi hotspot
USB Yes, microUSB v2.0 Yes, microUSB v2.0
GPS Yes, with A-GPS support Yes
Browser HTML HTML

memory User Memory

Internal 4 GB, 512 MB RAM 4 GB (2.4 GB user available), 512 MB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 32 GB

Apps Sensors

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

battery Battery

Type Li-Ion Battery Li-Ion Battery
Capacity 1800 mAh 1500 mAh
Stand by Up to 200 h Up to 300 h (2G)
Up to 280 h (3G)
Talk Time Up to 5 h Up to 4 h 30 min (2G)
Up to 3 h 30 min (3G)