Karbonn A21 vs Nokia Lumia 1020
General Info
| Manufacturer | |
| Karbonn | Nokia |
| Announced | |
| 2012 | July 2013 |
| Status | |
| Available | Available - July 2013 |
| Colors | |
| Pearl White | Black, White, Yellow |
| Form Factor | |
| Candybar | Candybar |
| Dimension | |
| - |
130.4 x 71.4 x 10.4 mm (5.13 x 2.81 x 0.41 in) |
| Weight | |
| - | 158 g (5.57 oz) |
| 2G Network | |
| GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | |
| HSDPA 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | |
| - | LTE 800 / 900 / 1800 / 2100 / 2600 |
| Messaging | |
| SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
Display
| Type | |
| TFT capacitive touchscreen | AMOLED capacitive touchscreen, PureMotion HD+ ClearBlack Display, Gorilla Glass 3 |
| Colors | |
| 256K colors | 16M colors |
| Size | |
| 4.5 inches [Similar] | 4.5 inches [Similar] |
| Resolution | |
| 480 x 800 pixels (207 ppi) [Similar] | 768 x 1280 pixels (332 ppi) |
| Screen-to-Body Ratio | - | 61.80% |
| Multi-Touch | |
Hardware and OS
| OS | |
| Android OS, v4.0 (Ice Cream Sandwich) | Microsoft Windows Phone 8 |
| Processor | |
| Dual-core 1.2 GHz [Similar] | Dual-core 1.5 GHz Krait, Qualcomm MSM8960 Snapdragon [Similar] |
| GPU | |
| - | Adreno 225 [Similar] |
| RAM | |
| 512 MB [Browse Similar] | 2 GB [Browse Similar] |
| Internal Memory | |
| 4 GB | 32 GB |
| External Memory | |
| microSD, up to 32 GB | No |
Camera
| Rear Camera | |
| 5 MP, 2592х1944 pixels [Similar] | 41 MP (38 MP effective, 7152 x 5368 pixels) [Similar] |
| Flash | |
| LED flash | Xenon Flash |
| Features | |
| Auto focus, Geo-tagging, Face Detection | Carl Zeiss optics, Auto Focus, 1/1.2' Sensor Size, ND Filter, Optical Zoom, Geo-tagging, Face Detection, Optical Zoom, Panorama |
| Video | |
| Yes | Yes, 1080p@30fps |
| Front Camera | |
| Yes, 1.3 MP [Similar] | Yes, 1.2 MP, 720p [Similar] |
Multimedia
| 3.5mm Jack | |
| Radio | |
| No | Stereo FM radio with RDS |
| Games | |
| Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
Connectivity and Data Rate
| GPRS | |
| Yes | Up to 107 kbps |
| Edge | |
| Yes | Up to 236.8 kbps |
| 3G | |
| HSDPA, 7.2 Mbps | HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL |
| Bluetooth | |
| Yes, v2.1 with A2DP | Yes, v3.0 with A2DP |
| Wi-Fi | |
| Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n, DLNA, UPnP technology |
| USB | |
| Yes, microUSB v2.0 | Yes, microUSB v2.0, USB On-the-go |
| GPS | |
| Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | |
| HTML | HTML5 |
User Memory
| Internal | |
| 4 GB, 512 MB RAM | 32 GB, 2 GB RAM |
| Expandable Storage | |
| microSD, up to 32 GB | No |
| USB OTG | |
| - | Supported |
Sensors
| Fingerprint | |
| Proximity Sensor | |
| Accelerometer Sensor | |
| NFC | |
Battery
| Type | |
| Li-Ion Battery | Non-removable Li-Ion Battery, Wireless Charging Supported via Cover |
| Capacity | |
| 1800 mAh | 2000 mAh |
| Stand by | |
| Up to 200 h | Up to 384 h |
| Talk Time | |
| Up to 5 h | Up to 19 h 6 min (2G) Up to 13 h 18 min (3G) |