Phone Comparison - Xiaomi Redmi Note 2 vs Lenovo K3 Note vs Sony Xperia X
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| Manufacturer | Xiaomi | Lenovo | Sony |
| Announced | August 2015 | March 2015 | February 2016 |
| Status | Available - August 2015 | Available - March 2015 | Available - May 2016 |
| Price | Rs. 9,700 ($141.99) [Similarly Priced] | Rs. 9,058 ($133.21) [Similarly Priced] | Rs. 38,990 ($573.38) [Similarly Priced] |
| Colors | Black, White, Yellow, Mint Green, Blue | Yellow, White | White, Graphite Black, Lime Gold, Rose Gold |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
152 x 76 x 8.3 mm (5.98 x 2.99 x 0.33 in) |
152.6 x 76.2 x 8 mm (6.01 x 3 x 0.31 in) |
142.7 x 69.4 x 7.9 mm (5.62 x 2.73 x 0.31 in) |
| Weight | 160 g (5.64 oz) | 150 g (5.29 oz) | 153 g (5.4 oz) |
| 2G Network | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (optional) |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100, TD-SCDMA | HSDPA 850 / 900 / 1900 / 2100 TD-SCDMA 1880 / 2010 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) | LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300) | LTE |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v5.0 (Lollipop) based MIUI 7 | Android OS, v5.0 (Lollipop) | Android OS, v6.0.1 (Marshmallow) |
| Processor | Octa-core 2.0 GHz Cortex-A53, Mediatek MT6795 | Octa-core 1.7 GHz Cortex-A53, Mediatek MT6752 | Quad-core 1.2 GHz Cortex-A53 & Dual-core 1.8 GHz Cortex-A72, Qualcomm MSM8956 Snapdragon 650 |
| GPU | PowerVR G6200 | Mali-T760MP2 | Adreno 510 |
| RAM | 2 GB | 2 GB | 3 GB |
| Internal Memory | 16 GB | 16 GB | 32/64 GB |
| External Memory | Yes | microSD, up to 32 GB | microSD, up to 200 GB (dedicated slot) |
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| Type | IPS LCD capacitive touchscreen | IPS capacitive touchscreen | IPS LCD Capacitive Touchscreen, Scratch-resistant, Triluminos Display, X-Reality Engine |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.5 inches | 5.5 inches | 5.0 inches |
| Resolution | 1080 x 1920 pixels (401 ppi) | 1080 x 1920 pixels (401 ppi) | 1080 x 1920 pixels (441 ppi) |
| Screen-to-Body Ratio | 72.02% | 71.55% | 69.46% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio | FM radio with RDS |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4128 x 3096 pixels | 13 MP, 4128 x 3096 pixels | 23 MP |
| Flash | LED flash | dual-LED (dual tone) | Pulse LED Flash |
| Features | Phase Detection Auto focus (PDAF), Geo-tagging, Touch Focus, Face/smile Detection, HDR | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | Phase Detection Autofocus, 1/2.3" Exmor RS Sensor, 24mm G Lens F2.0, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama |
| Video | 1080p@30fps | 1080p@30fps | 1080p@30fps |
| Front Camera | 5 MP [Similar] | 5 MP [Similar] | 13 MP, f/2.0, 22mm, 1/3" Exmor RS Sensor, 1080p, HDR [Similar] |
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| GPRS | Yes | Yes | Up to 107 kbps |
| Edge | Yes | Yes | Up to 296 kbps |
| 3G | TD-SCDMA | HSPA, TD-SCDMA, LTE, TD-LTE | HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps |
| Bluetooth | v4.0, A2DP, LE | v4.0, A2DP, LE | v4.2, A2DP, apt-X |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot |
| USB | microUSB v2.0, USB Host | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 16 GB, 2 GB RAM | 16 GB, 2 GB RAM | 32/64 GB, 3 GB RAM |
| Expandable Storage | Yes | microSD, up to 32 GB | microSD, up to 200 GB (dedicated slot) |
| 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-Po Battery | Li-Po Battery | Li-Ion Battery |
| Capacity | 3060 mAh | 3000 mAh | 2620 mAh |
| Stand by | - | Up to 750 h (3G) | - |
| Talk Time | - | Up to 36 h (3G) | Up to 48 h |
