Phone Comparison - HTC Desire 820 vs HTC One M8s vs Oppo R7
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| Manufacturer | HTC | HTC | Oppo |
| Announced | September 2014 | April 2015 | May 2015 |
| Status | Coming Soon - September 2014 | Available - May 2015 | Available - May 2015 |
| Price | - | Rs. 20,499 ($301.46) [Similarly Priced] | Rs. 17,990 ($264.56) [Similarly Priced] |
| Colors | Marble White, Tuxedo Grey, Santorini White, Milky-way Grey, Tang | Gunmetal Gray, Glacial Silver, Amber Gold | Golden, Silver |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
157.7 x 78.7 x 7.7 mm (6.21 x 3.1 x 0.3 in) |
146.4 x 70.6 x 9.6 mm (5.76 x 2.78 x 0.38 in) |
143 x 71 x 6.3 mm (5.63 x 2.8 x 0.25 in) |
| Weight | 155 g (5.47 oz) | 160 g (5.64 oz) | 147 g (5.19 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 - EMEA version HSDPA 900 / 2100 - Asia version |
HSDPA 850 / 900 / 1900 / 2100 - EMEA, Asia HSDPA 850 / 1700 / 1900 / 2100 - T-Mobile |
HSDPA 850 / 900 / 1900 / 2100 - Global, Taiwan HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA |
| 4G Network | LTE 900 / 1800 / 2100 / 2600 - EMEA version | LTE band 3(1800), 7(2600), 8(900), 20(800) - EMEA | LTE band 1(2100), 3(1800), 7(2600), 8(900), 40(2300) - Global LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 28(700), 40(2300) - Taiwan LTE band 1(2100), 3(1800), 4(1700/2100), 7(2600), 17(700), 20(800) - USA |
| Messaging | SMS, MMS, Push Mail, EMail | SMS, MMS, Push Mail, EMail | SMS, MMS, Push Mail, EMail |
| Build Features | - | - | Support for Gloved and Wet Touch Input |
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| OS | Android OS, v4.4.2 (KitKat) | Android OS, v5.0 (Lollipop) | Android OS, v5.1 (Lollipop) |
| Processor | Quad-core 1.5 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615 | Quad-core 1 GHz Cortex-A53 & Quad-core 1.7 GHz Cortex-A57, Qualcomm MSM8939 Snapdragon 615 | Quad-core 1.5 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615 |
| GPU | Adreno 405 | Adreno 405 | Adreno 405 |
| RAM | 2 GB | 2 GB | 3 GB |
| Internal Memory | 16 GB | 16/32 GB | 16 GB |
| External Memory | microSD, up to 128 GB | microSD, up to 128 GB | microSD, up to 128 GB (uses SIM 2 slot) |
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| Type | LCD Capacitive Touchscreen | Super LCD3 Capacitive Touchscreen, Corning Gorilla Glass 3 | AMOLED Capacitive Touchscreen, Corning Gorilla Glass 3 |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.5 inches | 5.0 inches | 5.0 inches |
| Resolution | 720 x 1280 pixels (267 ppi) | 1080 x 1920 pixels (441 ppi) | 1080 x 1920 pixels (445 ppi) |
| Screen-to-Body Ratio | 67.20% | 66.55% | 66.54% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | Stereo 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 | 13 MP, 4128 x 3096 pixels | 13 MP, 4128 x 3096 pixels, Schneider-Kreuznach O |
| Flash | LED flash | Dual-LED flash | LED Flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face Detection, Simultaneous HD Video And Image Recording, HDR | Auto-focus, OIS, Automatic Simultaneous Video And Image Recording, Geo-tagging, Face/smile Detection, HDR, Panorama | Phase Detection Auto-focus, Geo-tagging, Touch Focus, Face Detection, Colorful Night, Slow Shutter, Expert Mode, Beautify, Ultra HD, Panorama, Audio Photo, GIF, Double Exposure, Super Macro, RAW, HDR, Gorgeous Color Filters, Blurred Background, Fast Lens, |
| Video | 1080p@30fps, 720p@60fps | 1080p@60fps, 720p@120fps, HDR, stereo sound rec. | 1080p@30fps |
| Front Camera | 8 MP, 1080p [Similar] | 5 MP, 1080p@30fps, HDR [Similar] | 8 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL | HSPA 42.2/21.1(AT&T)/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA, LTE Cat4 150/50 Mbps |
| Bluetooth | v4.0, A2DP | v4.0, A2DP, apt-X | v4.0 |
| Wi-Fi | 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, DLNA, hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| USB | microUSB v2.0 | microUSB v2.0 (MHL TV-out), USB Host | microUSB v2.0, USB Host |
| 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 | 16/32 GB, 2 GB RAM | 16 GB, 3 GB RAM |
| Expandable Storage | microSD, up to 128 GB | microSD, up to 128 GB | microSD, up to 128 GB (uses SIM 2 slot) |
| 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-Po Battery | Non-removable Li-Po Battery | Non-removable Li-Po Battery |
| Capacity | 2600 mAh | 2840 mAh | 2320 mAh |
| Stand by | Up to 424 h (3G) | - | - |
| Talk Time | Up to 22 h 24 min (3G) | - | - |
