| OS |
Android 4.0.4 (Ice Cream Sandwich), Upgradable to Android 4.1 (Jelly Bean), Clean Stock Android with Dual SIM Management |
| Chipset |
Qualcomm Snapdragon S4 Play MSM8225 (45 nm 1.2GHz Dual-Core with 2x Cortex-A5 1.2GHz & Adreno 203 GPU @ 320MHz) |
| RAM |
512MB RAM |
| Storage |
4GB Internal Storage (2.5GB User Accessible) |
| Display |
4.5 inches • 480 x 800 pixels (5:3, 207 ppi) |
| Main camera |
5.0 MP Main (Autofocus, LED flash, Face Detection, Panorama, 720p HD@30fps video) |
| Selfie camera |
1.3 MP (Face beauty, 720p video) |
| Battery |
1800 mAh User-Replaceable / Removable Battery (Powers over 8 hours calling / 350 hours standby!), Micro-USB 2.0 charging • Removable Li-Ion 1800 mAh |
| Weight |
145 g (5.11 oz) |
Latest Karbonn A21 user agents:
| User Agent |
Browser | Platform |
| Mozilla/5.0 (Linux; U; Android 4.0.4; en-US; Karbonn A21 Build/IMM76I) AppleWebKit/534.31 (KHTML, like Gecko) UCBrowser/9.2.3.324 U3/0.8.0 Mobile Safari/534.31 |
UC Browser 9 | Android 4A21 |
| Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; Karbonn A21 Build/IMM76I) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/9.8.9.457 U3/0.8.0 Mobile Safari/534.30 |
UC Browser 9 | Android 4A21 |
| Mozilla/5.0 (Linux; U; Android 4.0.4; en-US; Karbonn A21 Build/IMM76I) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/10.0.2.523 U3/0.8.0 Mobile Safari/534.30 |
UC Browser 10 | Android 4A21 |
| Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; Karbonn A21 Build/IMM76I) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30evme-launcher |
Android Browser | Android 4A21 |
| Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; Karbonn A21 Build/IMM76I) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 Mobile UCBrowser/3.4.1.483 |
UC Browser 3 | Android 4A21 |
| Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; Karbonn A21 Build/IMM76I) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 |
Android Browser | Android 4A21 |
| Mozilla/5.0 (Linux; U; Android 4.0.4; en-US; Karbonn A21 Build/IMM76I) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 UCBrowser/9.9.4.484 U3/0.8.0 Mobile Safari/533.1 |
UC Browser 9 | Android 4A21 |
| Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; Karbonn A21 Build/IMM76I) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 UCBrowser/9.8.9.457 U3/0.8.0 Mobile Safari/533.1 |
UC Browser 9 | Android 4A21 |
| Mozilla/5.0 (Linux; Android 4.0.4; Karbonn A21 Build/IMM76I) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.166 Mobile Safari/535.19 |
Chrome Mobile 18 | Android 4A21 |
