Phone Comparison - Lenovo K900 vs Sony Xperia T2 Ultra vs Xiaomi Redmi Note 4G
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| Manufacturer | Lenovo | Sony | Xiaomi |
| Announced | January 2013 | January 2014 | August 2014 |
| Status | Available - April 2013 | Available - January 2014 | Available - November 2014 |
| Colors | Black | Black, White, Purple | Black/White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
157 x 78 x 6.9 mm (6.18 x 3.07 x 0.27 in) |
165.2 x 83.8 x 7.7 mm (6.5 x 3.3 x 0.3 in) |
154 x 78.7 x 9.5 mm (6.06 x 3.1 x 0.37 in) |
| Weight | 162 g (5.71 oz) | 171.7 g / 172.4 g (6.03.0.25 oz / 6.07.0.14 oz) | 199 g (7.02 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - all versions | GSM 900 / 1800 / 1900 |
| 3G Network | HSDPA 2100 | HSDPA 850 / 900 / 2100 - D5303 HSDPA 850 / 900 / 1700 / 1900 / 2100 - D5306 |
TD-SCDMA 1900 / 2000 |
| 4G Network | - | LTE 800 / 850 / 900 / 1800 / 2100 / 2600 - D5303 | TD-LTE 1900 / 2300 / 2600 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.2 (Jelly Bean) | Android OS, v4.3 (Jelly Bean) | Android OS, v4.2 (Jelly Bean) |
| Processor | Dual-core 2.0 GHz, Intel Atom Z2580 | Quad-core 1.4 GHz, Qualcomm MSM8928 | Quad-core 1.6 GHz Cortex-A7, Qualcomm MSM8928 Snapdragon 400 |
| GPU | PowerVR SGX544 | - | Adreno 305 |
| RAM | 2 GB | 1 GB | 2 GB |
| Internal Memory | 16 GB | 8 GB | 8 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 64 GB |
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| Type | IPS LCD capacitive touchscreen | TFT capacitive touchscreen, TRILUMINOS™ Display, Mobile BRAVIA engine 2 | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.5 inches | 6.0 inches | 5.5 inches |
| Resolution | 1080 x 1920 pixels (401 ppi) | 720 x 1280 pixels (245 ppi) | 720 x 1280 pixels (267 ppi) |
| Screen-to-Body Ratio | 67.94% | 71.55% | 68.82% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio | FM radio with RDS | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, autofocus | 13 MP, 4128 x 3096 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | dual-LED flash | LED flash | LED flash |
| Features | Geo-tagging, Touch Focus, Face Detection | Auto focus, Geo-tagging, Touch Focus, Face Detection, Image Stabilization, HDR, Sweep Panorama | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, HDR |
| Video | Yes, 1080p@30fps | Yes, 1080p@30fps, video stabilization, HDR | 1080p@30fps |
| Front Camera | Yes, 2 MP [Similar] | Yes, 1.1 MP, 720p@30fps [Similar] | 5 MP [Similar] |
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| GPRS | Yes | Up to 107 kbps | Yes |
| Edge | Yes | Up to 296 kbps | Yes |
| 3G | HSPA+ | HSDPA, 42 Mbps; HSUPA, 5.76 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL | TD-SCDMA; LTE |
| Bluetooth | Yes, with A2DP | Yes, v4.0 with A2DP | v4.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual band, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | microUSB v2.0, USB On-the-go |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 16 GB, 2 GB RAM | 8 GB, 1 GB RAM | 8 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 64 GB |
| 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 | Li-Ion battery | Non-removable Li-Ion Battery | Li-Po Battery |
| Capacity | 2500 mAh | 3000 mAh | 3200 mAh |
| Stand by | - | Up to 1071 h (2G) Up to 1046 h (3G) |
Up to 775 h (3G) |
| Talk Time | - | Up to 14 h (2G) Up to 24 h (3G) |
Up to 38 h (2G) Up to 14 h (3G) |
