OS	Android 4.0 (Ice Cream Sandwich)
Display	4.5 inches, 57.6 cm2 • 480 x 800 pixels, 5:3 ratio (~207 ppi density)
Main camera	5 MP, AF
Selfie camera	1.3 MP
Battery	1800 mAh • Li-Ion

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