Motorola Electrify M XT905 vs Karbonn A21
General Info
| Manufacturer | |
| Motorola | Karbonn |
| Announced | |
| November 2012 | 2012 |
| Status | |
| Available - November 2012 | Available |
| Colors | |
| Black/Gray | Pearl White |
| Form Factor | |
| Candybar | Candybar |
| Dimension | |
|
123.2 x 61.5 x 8.6 mm (4.85 x 2.42 x 0.34 in) |
- |
| Weight | |
| 111.1 g (3.92.0.04 oz) | - |
| 2G Network | |
| CDMA 800 / 1700 / 1900 | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | |
| CDMA2000 1xEV-DO | HSDPA 2100 |
| 4G Network | |
| LTE 700 MHz Class 17 / 1700 / 2100 | - |
| Messaging | |
| SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
Display
Hardware and OS
| OS | |
| Android OS, v4.0.4 (Ice Cream Sandwich) | Android OS, v4.0 (Ice Cream Sandwich) |
| Processor | |
| Dual-core 1.5 GHz [Similar] | Dual-core 1.2 GHz [Similar] |
| GPU | |
| - | - |
| RAM | |
| 1 GB [Browse Similar] | 512 MB [Browse Similar] |
| Internal Memory | |
| 8 GB (5 GB user available) | 4 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 | |
| No | Yes |
| Edge | |
| No | Yes |
| 3G | |
| Rev.A, up to 3.1 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL | HSDPA, 7.2 Mbps |
| Bluetooth | |
| Yes, v4.0 with A2DP, LE, EDR | Yes, v2.1 with A2DP |
| Wi-Fi | |
| Wi-Fi 802.11 a/b/g/n, dual-band, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n |
| USB | |
| Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | |
| Yes, with A-GPS support and GLONASS | Yes, with A-GPS support |
| Browser | |
| HTML5 | HTML |
User Memory
| Internal | |
| 8 GB (5 GB user available), 1 GB RAM | 4 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 | |
| Standard battery, Li-Ion | Li-Ion Battery |
| Capacity | |
| 2000 mAh | 1800 mAh |
| Stand by | |
| Up to 432 h (3G) | Up to 200 h |
| Talk Time | |
| Up to 16 h 40 min (3G) | Up to 5 h |