Phone Comparison - Panasonic P81 vs Xiaomi Mi 3 vs Xiaomi Redmi Note
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| Manufacturer | Panasonic | Xiaomi | Xiaomi |
| Announced | June 2014 | September 2013 | March 2014 |
| Status | Available - June 2014 | Available - December 2013 | Available - March 2014 |
| Colors | Black | Various | Various |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
7.9 mm thickness (0.31 in thickness) |
144 x 73.6 x 8.1 mm (5.67 x 2.9 x 0.32 in) |
154 x 78.7 x 9.45 mm (6.06 x 3.1 x 0.37 in) |
| Weight | - | 145 g (5.11 oz) | 199 g (7.02 oz) |
| 2G Network | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 1900 / 2100 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.2.2 (Jelly Bean) | Android OS, v4.4 (KitKat) optimized with MIUI version 5 | Android OS, v4.2 (Jelly Bean) |
| Processor | Octa-core 1.7 GHz Cortex-A7, Mediatek MT6592 | Quad-core 2.3 GHz Krait 400, Qualcomm MSM8274AB Snapdragon 800 | Octa-core 1.4 GHz Cortex-A7 / Octa-core 1.7 GHz Cortex-A7, Mediatek MT6592 |
| GPU | Mali-450MP4 | Adreno 330 | Mali-450MP4 |
| RAM | 1 GB | 2 GB | 1/2 GB |
| Internal Memory | 8 GB | 16/64 GB | 8 GB |
| External Memory | microSD, up to 32 GB | No | microSD, up to 32 GB |
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| Type | IPS LCD capacitive touchscreen | IPS LCD capacitive touchscreen | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.5 inches | 5.0 inches | 5.5 inches |
| Resolution | 720 x 1280 pixels (267 ppi) | 1080 x 1920 pixels (441 ppi) | 720 x 1280 pixels (267 ppi) |
| Screen-to-Body Ratio | - | 64.90% | 68.82% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio with RDS | FM radio | FM Radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4160 x 3120 pixels | 13 MP, 4128 x 3096 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | dual-LED flash | LED flash |
| Features | Auto focus, Geo-tagging | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization, HDR | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, HDR |
| Video | Yes, 1080p@30fps | 1080p@30fps, HDR | 1080p@30fps |
| Front Camera | Yes, 2 MP [Similar] | 2 MP, 1080p@30fps [Similar] | 5 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | DC-HSDPA, 42 Mbps; HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSPA+ |
| Bluetooth | Yes, v3.0 with A2DP | v4.0, A2DP | v4.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | microUSB v2.0 (MHL), USB On-the-go | microUSB v2.0, USB On-the-go |
| GPS | Yes, with A-GPS support | Yes, with A-GPS, GLONASS | Yes, with A-GPS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 8 GB, 1 GB RAM | 16/64 GB, 2 GB RAM | 8 GB, 1/2 GB RAM |
| Expandable Storage | microSD, up to 32 GB | No | microSD, up to 32 GB |
| USB OTG | - | Supported | 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 | Non-removable Li-Ion Battery | Non-removable Li-Ion Battery | Li-Po Battery |
| Capacity | 2500 mAh | 3050 mAh | 3100 mAh |
| Stand by | - | Up to 500 h | - |
| Talk Time | - | Up to 4 h | - |
