Phone Comparison - Motorola ATRIX HD MB886 vs Karbonn A21 vs Motorola Moto X (Gen 2)
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| Manufacturer | Motorola | Karbonn | Motorola |
| Announced | July 2012 | 2012 | September 2014 |
| Status | Released - July 2012 | Available | Available - September 2014 |
| Colors | Black | Pearl White | Black, White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
133.5 x 69.9 x 8.4 mm (5.26 x 2.75 x 0.33 in) |
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140.8 x 72.4 x 9.97 mm (5.54 x 2.85 x 0.39 in) |
| Weight | 140 g (4.94 oz) | - | 144 g (5.08 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - All Versions |
| 3G Network | HSDPA 850 / 1700 / 1900 / 2100 | HSDPA 2100 | HSDPA 850 / 900 / 1900 / 2100 - for AT&T HSDPA 850 / 900 / 1900 / 2100 - for Europe HSDPA 850 / 900 / 1700 / 1900 / 2100 - for T-Mobile |
| 4G Network | LTE 700 MHz Class 17 / 2100 | - | - |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.x (Ice Cream Sandwich) | Android OS, v4.0 (Ice Cream Sandwich) | Android OS, v4.4.4 (KitKat) |
| Processor | Dual-core 1.5 GHz | Dual-core 1.2 GHz | Quad-core 2.5 GHz Krait 400, Qualcomm MSM8974-AC Snapdragon 801 |
| GPU | - | - | Adreno 330 |
| RAM | 1 GB | 512 MB | 2 GB |
| Internal Memory | 8 GB storage | 4 GB | 16/32 GB |
| External Memory | microSD, up to 32GB | microSD, up to 32 GB | No |
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| Type | TFT capacitive touchscreen | TFT capacitive touchscreen | AMOLED Capacitive Touchscreen, Corning Gorilla Glass 3 |
| Colors | 16M colors | 256K colors | 16M colors |
| Size | 4.5 inches | 4.5 inches | 5.2 inches |
| Resolution | 720 x 1280 pixels (326 ppi) | 480 x 800 pixels (207 ppi) | 1080 x 1920 pixels (424 ppi) |
| Screen-to-Body Ratio | 59.95% | - | 73.00% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | No | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 5 MP, 2592х1944 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | LED flash | Dual-LED Flash |
| Features | Auto focus, Geo-tagging, Image Stabilization | Auto focus, Geo-tagging, Face Detection | Auto-focus, Geo-tagging, Face Detection, Image Stabilization, HDR |
| Video | Yes, 1080p@30fps | Yes | Yes, 2160p@30fps, HDR |
| Front Camera | Yes, 1.3 MP [Similar] | Yes, 1.3 MP [Similar] | Yes, 2 MP, 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps |
| Edge | Yes | Yes | Class 12 |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps, LTE | HSDPA, 7.2 Mbps | HSDPA, 42 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL |
| Bluetooth | Yes, v4.0 with A2DP, LE, EDR | Yes, v2.1 with A2DP | Yes, v4.0 with A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | Yes, microUSB v2.0 (MHL), USB Host |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS |
| Browser | HTML5 | HTML | HTML5 |
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| Internal | 8 GB storage, 1 GB RAM | 4 GB, 512 MB RAM | 16/32 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 32GB | microSD, up to 32 GB | No |
| USB OTG | - | - | Supported |
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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-Ion | Li-Ion Battery | Non-removable Li-Ion Battery |
| Capacity | 1780 mAh | 1800 mAh | 2300 mAh |
| Stand by | - | Up to 200 h | - |
| Talk Time | - | Up to 5 h | - |
