Phone Comparison - HTC Desire 820 vs Lenovo A7000 vs Acer Iconia One 8 B1-820
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| Manufacturer | HTC | Lenovo | Acer |
| Announced | September 2014 | March 2015 | April 2015 |
| Status | Coming Soon - September 2014 | Available - May 2015 | Coming Soon - April 2015 |
| Price | - | Rs. 8,400 ($123.53) [Similarly Priced] | Rs. 5,180 ($75.99) [Similarly Priced] |
| Colors | Marble White, Tuxedo Grey, Santorini White, Milky-way Grey, Tang | Onyx Black, Pearl White | 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) |
152.6x 76.2 x 7.9 mm (6.01x 3 x 0.31 in) |
213.9 x 127.7 x 9.5 mm (8.42 x 5.03 x 0.37 in) |
| Weight | 155 g (5.47 oz) | 140 g (4.94 oz) | 355 g (12.52 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | N/A |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 - EMEA version HSDPA 900 / 2100 - Asia version |
HSDPA 900 / 2100 | N/A |
| 4G Network | LTE 900 / 1800 / 2100 / 2600 - EMEA version | LTE 700 / 900 / 1800 | - |
| Messaging | SMS, MMS, Push Mail, EMail | SMS, MMS, Push Mail, EMail | , Push Mail, EMail, IM |
| Build Features | - | Dolby Atmos | - |
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| OS | Android OS, v4.4.2 (KitKat) | Android OS, v5.0 (Lollipop) | Android OS, v5.0 (Lollipop) |
| Processor | Quad-core 1.5 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615 | Octa-core 1.5 GHz Cortex-A53, Mediatek MT6572M | Quad-core 1.83 GHz, Intel Atom Z3735G |
| GPU | Adreno 405 | Mali-T760MP2 | - |
| RAM | 2 GB | 2 GB | 1 GB |
| Internal Memory | 16 GB | 8 GB | 16/32 GB |
| External Memory | microSD, up to 128 GB | microSD, up to 32 GB; SD cards | microSD, up to 32 GB |
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| Type | LCD Capacitive Touchscreen | IPS LCD Capacitive Touchscreen, | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | - |
| Size | 5.5 inches | 5.5 inches | 8.0 inches |
| Resolution | 720 x 1280 pixels (267 ppi) | 720 x 1280 pixels (267 ppi) | 800 x 1280 pixels (189 ppi) |
| Screen-to-Body Ratio | 67.20% | - | 67.71% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM radio | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4160 x 3120 pixels | 8 MP, 3264 x 2448 pixels | 5 MP, 2592 х 1944 pixels |
| Flash | LED flash | LED flash | No |
| Features | Auto focus, Geo-tagging, Touch Focus, Face Detection, Simultaneous HD Video And Image Recording, HDR | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | Yes |
| Video | 1080p@30fps, 720p@60fps | 1080p@30fps | Yes |
| Front Camera | 8 MP, 1080p [Similar] | 5 MP [Similar] | VGA [Similar] |
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| GPRS | Yes | Yes | No |
| Edge | Yes | Yes | No |
| 3G | HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL | HSPA 21.1/5.76 Mbps, LTE Cat4 150/50 Mbps | No |
| Bluetooth | v4.0, A2DP | v4.0, A2DP, EDR | 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 b/g/n, hotspot | Wi-Fi 802.11 b/g/n |
| USB | microUSB v2.0 | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS | No |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 16 GB, 2 GB RAM | 8 GB, 2 GB RAM | 16/32 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 128 GB | microSD, up to 32 GB; SD cards | microSD, up to 32 GB |
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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 | Li-Po Battery | - |
| Capacity | 2600 mAh | 2900 mAh | 4550 mAh |
| Stand by | Up to 424 h (3G) | Up to 264 h (2G) Up to 264 h (3G) Up to 288 h (4G) |
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| Talk Time | Up to 22 h 24 min (3G) | Up to 39 h (2G) Up to 16 h (3G) |
Up to 8 h 30 min (multimedia) |
