Phone Comparison - LG Optimus 2X vs Xiaomi Mi Note 2015 vs Lenovo K3 Note
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| Manufacturer | LG | Xiaomi | Lenovo |
| Announced | December 2010 | January 2015 | March 2015 |
| Status | Available - February 2011 | Available - January 2015 | Available - March 2015 |
| Price | - | - | Rs. 9,058 ($133.21) [Similarly Priced] |
| Colors | Black | Black, White | Yellow, White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
123.9 x 63.2 x 10.9 mm
(4.88 x 2.49 x 0.43 in ) |
155.1 x 77.6 x 7 mm (6.11 x 3.06 x 0.28 in) |
152.6 x 76.2 x 8 mm (6.01 x 3 x 0.31 in) |
| Weight | 139 g (4.9 oz) | 161 g (5.68 oz) | 150 g (5.29 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 900 / 1900 / 2100 HSDPA 900 / 1700 / 2100 |
HSDPA | HSDPA 850 / 900 / 1900 / 2100 TD-SCDMA 1880 / 2010 |
| 4G Network | - | LTE - SIM 1 & SIM 2 | LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300) |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
| Build Features | - | Corning Gorilla Glass 3 Back Panel | - |
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| OS | Android OS, v2.2 (Froyo), upgradable to v2.3 | Android OS, v4.4.x (KitKat) | Android OS, v5.0 (Lollipop) |
| Processor | Dual-core 1 GHz Cortex-A9, Nvidia Tegra 2 AP20H | Quad-core 2.5 GHz Krait 400, Qualcomm Snapdragon 801 | Octa-core 1.7 GHz Cortex-A53, Mediatek MT6752 |
| GPU | ULP GeForce | Adreno 330 | Mali-T760MP2 |
| RAM | 512 MB | 3 GB | 2 GB |
| Internal Memory | 8 GB storage | 16/64 GB | 16 GB |
| External Memory | microSD, up to 32GB | - | microSD, up to 32 GB |
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| Type | IPS LCD capacitive touchscreen | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3 | IPS capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.0 inches | 5.7 inches | 5.5 inches |
| Resolution | 480 x 800 pixels (233 ppi) | 1080 x 1920 pixels (386 ppi) | 1080 x 1920 pixels (401 ppi) |
| Screen-to-Body Ratio | 58.28% | 74.60% | 71.55% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | - | FM radio |
| Games | Yes + downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 13 MP, 4128 x 3096 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | dual-LED (dual tone) | dual-LED (dual tone) |
| Features | Auto focus, Geo-tagging, Face And Smile Detection, Touch Focus, Image Stabilization | Auto focus, Geo-tagging, Touch Focus, Face/smile Detection, HDR, Panorama | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama |
| Video | Yes, 1080p@24fps, 720p@30fps | 1080p@30fps | 1080p@30fps |
| Front Camera | Yes, 1.3 MP [Similar] | 4 MP, 1080p, 1/3 [Similar] | 5 MP [Similar] |
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| GPRS | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Yes | Yes |
| Edge | Class 12 | Yes | Yes |
| 3G | HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps | HSPA, LTE Cat4 150/50 Mbps | HSPA, TD-SCDMA, LTE, TD-LTE |
| Bluetooth | Yes, v2.1 with A2DP | v4.0, A2DP, LE | v4.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, hotspot |
| USB | Yes, microUSB v2.0 | microUSB v2.0, USB Host | microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS, GLONASS, Beidou | Yes, with A-GPS, GLONASS |
| Browser | HTML, Adobe flash | HTML5 | HTML5 |
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| Internal | 8 GB storage, 512 MB RAM | 16/64 GB, 3 GB RAM | 16 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 32GB | - | microSD, up to 32 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 | Standard battery, Li-Ion | Li-Ion Battery | Li-Po Battery |
| Capacity | 1500 mAh | 3000 mAh | 3000 mAh |
| Stand by | Up to 400 h | - | Up to 750 h (3G) |
| Talk Time | Up to 7 h 50 min | - | Up to 36 h (3G) |
