Phone Comparison - Panasonic P81 vs Sony Xperia E3 vs Sony Xperia C4 Dual
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| Manufacturer | Panasonic | Sony | Sony |
| Announced | June 2014 | September 2014 | May 2015 |
| Status | Available - June 2014 | Available - September 2014 | Available - June 2015 |
| Price | - | - | Rs. 19,900 ($292.65) [Similarly Priced] |
| Colors | Black | Black, White, Lime, Copper | Black, White, Mint |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
7.9 mm thickness (0.31 in thickness) |
137.7 x 69.4 x 8.5 mm (5.42 x 2.73 x 0.33 in) |
150.3 x 77.4 x 7.9 mm (5.92 x 3.05 x 0.31 in) |
| Weight | - | 143 g (5.04 oz) | 147 g (5.19 oz) |
| 2G Network | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - D2203, D2206, D2243, D2202 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 850 / 900 / 2100 - D2203 HSDPA 850 / 900 / 1900 / 2100 - D2202 |
HSDPA 850 / 900 / 1900 / 2100 - E5333, E5363, E5343 |
| 4G Network | - | LTE 800 / 850 / 1800 / 2100 / 2600 - D2203 | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800) - E5333 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
| Build Features | - | Shatter Proof Glass | - |
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| OS | Android OS, v4.2.2 (Jelly Bean) | Android OS, v4.4 (KitKat) | Android OS, v5.0 (Lollipop) |
| Processor | Octa-core 1.7 GHz Cortex-A7, Mediatek MT6592 | Quad-core 1.2 GHz, Qualcomm MSM8926-2 | Octa-core 1.7 GHz Cortex-A53, Mediatek MT6752 |
| GPU | Mali-450MP4 | Adreno 305 | Mali-T760MP2 |
| RAM | 1 GB | 1 GB | 2 GB |
| Internal Memory | 8 GB | 4 GB | 16 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 128 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 | 4.5 inches | 5.5 inches |
| Resolution | 720 x 1280 pixels (267 ppi) | 480 x 854 pixels (218 ppi) | 1080 x 1920 pixels (401 ppi) |
| Screen-to-Body Ratio | - | 58.23% | 71.52% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio with RDS | FM radio with RDS | FM radio with RDS |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4160 x 3120 pixels | 5 MP, 2592 х 1944 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | LED Flash | LED flash |
| Features | Auto focus, Geo-tagging | Auto focus, Geo-tagging, Touch Focus, Face Detection, Image Stabilization, HDR, Panorama | Auto focus, Geo-tagging, Touch Focus, Face/smile Detection, Panorama, HDR |
| Video | Yes, 1080p@30fps | 1080p@30fps | 1080p, HDR |
| Front Camera | Yes, 2 MP [Similar] | VGA [Similar] | 5 MP, 720p, LED flash [Similar] |
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| GPRS | Yes | Up to 107 kbps | Up to 85.6 kbps |
| Edge | Yes | Up to 296 kbps | Up to 236.8 kbps |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Bluetooth | Yes, v3.0 with A2DP | v4.0, A2DP | v4.1, A2DP, apt-X |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, dual-band, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, DLNA, hotspot |
| USB | Yes, microUSB v2.0 | microUSB v2.0 (MHL 3), USB On-the-go, USB Host | microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 8 GB, 1 GB RAM | 4 GB, 1 GB RAM | 16 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 128 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 | Non-removable Li-Ion Battery | Non-removable Li-Ion Battery | Non-removable Li-Ion Battery |
| Capacity | 2500 mAh | 2330 mAh | 2600 mAh |
| Stand by | - | Up to 706 h | Up to 634 h (2G) Up to 682 h (3G) |
| Talk Time | - | Up to 12 h 20 min | Up to 13 h (2G) Up to 11 h 30 min (3G) |
