Home Karbonn Phones Karbonn A21 Karbonn A21 Specs No User reviews yet A21 User reviews OS Android 4.0 Display 4.5 inches 800 x 480 pixels Camera 5 MP (Single camera) 1.3 MP front Storage 4GB, microSDHC Battery 1800 mAh Description The Karbonn A21 is a powerful dual-SIM Android device. It boasts Android 4.0, dual core 1.2GHz processor, 4.5'' display, 5MP camera, 3G support and expandable memory of up to 32GB via microSD card slot. Specs Compare Display Size: 4.5 inches Resolution: 800 x 480 pixels, 207 PPI Touchscreen: Capacitive, Multi-touch Hardware Processor: Dual-core, 1200 MHz Internal storage: 4GB Storage expansion: microSDHC up to 32 GB Device type: Smartphone OS: Android (4.0) Battery Capacity: 1800 mAh Type: User replaceable Camera Rear: Single camera Main camera: 5 MP (Autofocus) Video recording: Yes Front: 1.3 MP Design Colors: White Cellular UMTS: Bands 1(2100) Data Speed: HSDPA 7.2 Mbit/s, UMTS Dual SIM: Yes Multimedia Speakers: Loudspeaker Features: Album art cover, Background playback Broadcast Mobile TV: Yes Connectivity & Features Bluetooth: Yes Wi-Fi: 802.11 b, g, n USB: microUSB Features: Mass storage device, Charging Location: GPS, A-GPS Phone features Notifications: Music ringtones, Vibration Other features: Voice dialing, Voice commands, Voice recording Despite our efforts to provide full and correct Karbonn A21 specifications, there is always a possibility of admitting a mistake. If you see any wrong or incomplete data, please LET US KNOW. If you are interested in using our specs commercially, check out our Phone specs database licensing page.