Phone Comparison - Sony Ericsson Xperia X10 vs Karbonn A21 vs Lava Iris 501
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| Manufacturer | Sony Ericsson | Karbonn | Lava |
| Announced | November 2009 | 2012 | January 2013 |
| Status | Available - March 2010 | Available | Available - January 2013 |
| Colors | Sensous Black, Luster White | Pearl White | Black, White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
119 x 63 x 13 mm
(4.69 x 2.48 x 0.51 in ) |
- |
148.5 x 79 x 10.5 mm (5.85 x 3.11 x 0.41 in) |
| Weight | 135 g (4.76 oz) | - | - |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 900 / 1800 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 900 / 1700 / 2100 HSDPA 850 / 1900 / 2100 / 800 - X10a for Americas |
HSDPA 2100 | HSDPA 2100 |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v1.6 (Donut), upgradable to v2.3 | Android OS, v4.0 (Ice Cream Sandwich) | Android OS, v4.0.4 (Ice Cream Sandwich), upgradable to v4.1 |
| Processor | 1 GHz Scorpion, Qualcomm QSD8250 Snapdragon | Dual-core 1.2 GHz | Dual-core 1 GHz Cortex-A9, MediaTek MT6577 |
| GPU | Adreno 200 | - | PowerVR SGX531 |
| RAM | 384 MB | 512 MB | 512 MB |
| Internal Memory | 1 GB storage | 4 GB | 4 GB |
| External Memory | microSD, up to 32GB, 8GB card included | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | TFT capacitive touchscreen | TFT capacitive touchscreen | TFT LCD |
| Colors | 65K colors | 256K colors | 16M colors |
| Size | 4.0 inches | 4.5 inches | 5.0 inches |
| Resolution | 480 x 854 pixels (245 ppi) | 480 x 800 pixels (207 ppi) | 480 x 800 pixels (187 ppi) |
| Screen-to-Body Ratio | 58.77% | - | 60.39% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | No | FM radio |
| Games | Yes + downloadable, motion gam | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 5 MP, 2592х1944 pixels | 5 MP, 2592х1944 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Touch Focus, Image Stabilization, Geo-tagging, Face And Smile Detection | Auto focus, Geo-tagging, Face Detection | Auto focus, Geo-tagging, Touch Focus, Face Detection |
| Video | Yes, WVGA@30fps (720p@30fps with cont. autofocus via Android 2.1 Eclair update) | Yes | Yes |
| Front Camera | No [Similar] | Yes, 1.3 MP [Similar] | Yes, VGA [Similar] |
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| GPRS | Class 10 (4+1/3+2 slots), 32 - 48 kbps | Yes | Class 12 |
| Edge | Class 10, 236.8 kbps | Yes | Class 12 |
| 3G | HSDPA, 7.2 Mbps; HSUPA, 2 Mbps | HSDPA, 7.2 Mbps | HSDPA 7.2 Mbps; HSUPA 5.76 Mbps |
| Bluetooth | Yes, v2.1 with A2DP | Yes, v2.1 with A2DP | Yes, with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot |
| USB | Yes, v2.0 microUSB | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML, Adobe flash | HTML | HTML5 |
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| Internal | 1 GB storage, 384 MB RAM | 4 GB, 512 MB RAM | 4 GB, 512 MB RAM |
| Expandable Storage | microSD, up to 32GB, 8GB card included | microSD, up to 32 GB | microSD, up to 32 GB |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| NFC | |
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| Type | Standard battery, Li-Po | Li-Ion Battery | Li-Ion Battery |
| Capacity | 1500 mAh (BST-41) | 1800 mAh | 2300 mAh |
| Stand by | Up to 415 h (2G) Up to 425 h (3G) |
Up to 200 h | Up to 620 h |
| Talk Time | Up to 10 h (2G) Up to 8 h (3G) |
Up to 5 h | Up to 7 h |
