Phone Comparison - HTC Desire 820s dual sim vs HTC Desire 728 Dual Sim vs HTC Desire 825
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| Manufacturer | HTC | HTC | HTC |
| Announced | March 2015 | June 2015 | February 2016 |
| Status | Available - March 2015 | Coming Soon - June 2015 | Coming soon |
| Price | Rs. 27,900 ($410.29) [Similarly Priced] | Rs. 12,999 ($191.16) [Similarly Priced] | Rs. 15,250 ($224.26) [Similarly Priced] |
| Colors | Marble White, Milkyway Gray, Monarch Orange, Santorini White, Tu | Gray, White, Blue, Pink | Various |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
157.7 x 78.7 x 7.7 mm (6.21 x 3.1 x 0.3 in) |
157.9 x 77.8 x 7.87 mm (6.22 x 3.06 x 0.31 in) |
156.9 x 76.9 x 7.4 mm (6.18 x 3.03 x 0.29 in) |
| Weight | 155 g (5.47 oz) | 153 g (5.4 oz) | 155 g (5.47 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 TD-SCDMA 1900 / 2000 |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (optional) |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE 900 / 1800 / 2100 / 2600 TD-LTE 1900 / 2300 / 2500 / 2600 (Bands 1, 3, 7, 8, 38, 39, 40, 41) |
LTE | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 28(700), 40(2300) |
| Messaging | SMS, MMS, Push Mail, EMail | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.4.4 (KitKat) | Android OS, v5.1 (Lollipop) | Android OS, v6.0 (Marshmallow) |
| Processor | Octa-core 1.7 GHz Cortex-A53, Mediatek MT6752 | Octa-core 1.3 GHz Cortex-A53, Mediatek MT6753 | Quad-core 1.6 GHz Cortex-A7, Qualcomm Snapdragon 400 |
| GPU | Mali-T760MP2 | Mali-T720MP3 | Adreno 305 |
| RAM | 2 GB | 2 GB | 2 GB |
| Internal Memory | 16 GB | 16 GB | 16 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 128 GB | microSD, up to 200 GB (dedicated slot) |
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| Type | Capacitive Touchscreen, Corning Gorilla Glass 3 | Super LCD2 Capacitive Touchscreen | Super LCD Capacitive Touchscreen, Corning Gorilla Glass 4 |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.5 inches | 5.5 inches | 5.5 inches |
| Resolution | 720 x 1280 pixels (267 ppi) | 720 x 1280 pixels (267 ppi) | 720 x 1280 pixels (267 ppi) |
| Screen-to-Body Ratio | 67.20% | 67.89% | 69.13% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | 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, 4208 x 3120 pixels | 13 MP, 4160 x 3120 pixels |
| Flash | LED flash | LED Flash | LED Flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | Auto focus, BSI Sensor, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | Autofocus, f/2.2, 28 mm, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama |
| Video | 1080p@30fps | 1080p@30fps | 1080p@30fps |
| Front Camera | 8 MP, 1080p [Similar] | 5 MP, 1080p, BSI Sensor [Similar] | 5 MP, f/2.8, 1080p [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA, LTE Cat4 150/50 Mbps |
| Bluetooth | v4.0, A2DP | v4.0, A2DP, LE | v4.1, A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, hotspot |
| USB | microUSB v2.0 | microUSB v2.0, USB Host | 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 | 16 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 128 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 | Non-removable Li-Po Battery | Non-removable Li-Po Battery | Removable Li-Ion Battery |
| Capacity | 2600 mAh | 2800 mAh | 2700 mAh |
| Stand by | Up to 560 h (3G) | Up to 485 h (3G) | - |
| Talk Time | Up to 12 h 10 min (3G) | Up to 21 h (3G) | - |
