Motorola DROID RAZR HD vs Karbonn A21
General Info
| Manufacturer | |
| Motorola | Karbonn |
| Announced | |
| September 2012 | 2012 |
| Status | |
| Available - October 2012 | Available |
| Colors | |
| Black, White | Pearl White |
| Form Factor | |
| Candybar | Candybar |
| Dimension | |
|
131.9 x 67.9 x 8.4 mm (5.19 x 2.67 x 0.33 in) |
- |
| Weight | |
| 146 g (5.15 oz) | - |
| 2G Network | |
| CDMA 800 / 1900 GSM 850 / 900 / 1800 / 1900 |
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | |
| CDMA2000 1xEV-DO HSDPA 850 / 900 / 1900 / 2100 |
HSDPA 2100 |
| 4G Network | |
| LTE 700 MHz Class 13 | - |
| 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), upgradable to v4.1 | Android OS, v4.0 (Ice Cream Sandwich) |
| Processor | |
| Dual-core 1.5 GHz, Qualcomm MSM8960 Snapdragon [Similar] | Dual-core 1.2 GHz [Similar] |
| GPU | |
| Adreno 225 [Similar] | - |
| RAM | |
| 1 GB [Browse Similar] | 512 MB [Browse Similar] |
| Internal Memory | |
| 12 GB storage | 4 GB |
| External Memory | |
| microSD, up to 32GB | microSD, up to 32 GB |
Camera
| Rear Camera | |
| 8 MP, 3264x2448 pixels [Similar] | 5 MP, 2592х1944 pixels [Similar] |
| Flash | |
| LED flash | LED flash |
| Features | |
| Auto focus, Touch-focus, Geo-tagging, Face Detection, Image Stabilization | Auto focus, Geo-tagging, Face Detection |
| Video | |
| Yes, 1080p@30fps | Yes |
| Front Camera | |
| Yes, 1.3 MP [Similar] | Yes, 1.3 MP [Similar] |
Multimedia
| 3.5mm Jack | |
| Radio | |
| No | No |
| Games | |
| Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
Connectivity and Data Rate
| GPRS | |
| Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Yes |
| Edge | |
| Class 12 | Yes |
| 3G | |
| Rev. A, up to 3.1 Mbps, LTE, HSPA+ | HSDPA, 7.2 Mbps |
| Bluetooth | |
| Yes, v4.0 with LE+EDR | Yes, v2.1 with A2DP |
| Wi-Fi | |
| Wi-Fi 802.11 a/b/g/n, 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 | |
| HTML, Adobe Flash | HTML |
User Memory
| Internal | |
| 12 GB storage, 1GB RAM | 4 GB, 512 MB RAM |
| Expandable Storage | |
| microSD, up to 32GB | microSD, up to 32 GB |
Sensors
| Fingerprint | |
| Proximity Sensor | |
| Accelerometer Sensor | |
| NFC | |
Battery
| Type | |
| Li-Po Battery | Li-Ion Battery |
| Capacity | |
| 2530 mAh | 1800 mAh |
| Stand by | |
| Up to 286 h | Up to 200 h |
| Talk Time | |
| Up to 24 h | Up to 5 h |