Karbonn A21 vs Acer Iconia Tab B1-A71
General Info
| Manufacturer | |
| Karbonn | Acer |
| Announced | |
| 2012 | January 2013 |
| Status | |
| Available | Available - January 2013 |
| Colors | |
| Pearl White | Black |
| Form Factor | |
| Candybar | Candybar |
| Dimension | |
| - |
197.4 x 128.5 x 11.3 mm (7.77 x 5.06 x 0.44 in) |
| Weight | |
| - | 320 g (11.29 oz) |
| 2G Network | |
| GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | N/A |
| 3G Network | |
| HSDPA 2100 | - |
| 4G Network | |
| - | - |
| Messaging | |
| SMS, MMS, Push Mail, EMail, IM | , Push Mail, EMail, IM |
Display
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 1.2 GHz, Mediatek MT8317 [Similar] |
| GPU | |
| - | PowerVR SGX531u [Similar] |
| RAM | |
| 512 MB [Browse Similar] | 512 MB [Browse Similar] |
| Internal Memory | |
| 4 GB | 8/16 GB |
| External Memory | |
| microSD, up to 32 GB | microSD, up to 32 GB |
Camera
Multimedia
| 3.5mm Jack | |
| Radio | |
| No | No |
| Games | |
| Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
Connectivity and Data Rate
| GPRS | |
| Yes | No |
| Edge | |
| Yes | No |
| 3G | |
| HSDPA, 7.2 Mbps | - |
| Bluetooth | |
| Yes, v2.1 with A2DP | Yes, v4.0 |
| Wi-Fi | |
| Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n |
| USB | |
| Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | |
| Yes, with A-GPS support | Yes |
| Browser | |
| HTML | HTML5 |
User Memory
| Internal | |
| 4 GB, 512 MB RAM | 8/16 GB, 512 MB RAM |
| Expandable Storage | |
| microSD, up to 32 GB | microSD, up to 32 GB |
Sensors
| Fingerprint | |
| Proximity Sensor | |
| Accelerometer Sensor | |
| NFC | |
Battery
| Type | |
| Li-Ion Battery | Non-removable, Li-Po Battery |
| Capacity | |
| 1800 mAh | 2710 mAh |
| Stand by | |
| Up to 200 h | - |
| Talk Time | |
| Up to 5 h | - |