Phone Comparison - HTC Amaze 4G vs HTC Desire U vs Samsung Galaxy S Duos 2 S7582
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| Manufacturer | HTC | HTC | Samsung |
| Announced | September 2011 | January 2013 | November 2013 |
| Status | Available - October 2011 | Available - June 2015 | Available - November 2013 |
| Colors | Black, White | White, Black, Orange | White, Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
130 x 65.6 x 11.8 mm (5.12 x 2.58 x 0.46 in) |
118.5 x 62.3 x 9.3 mm (4.67 x 2.45 x 0.37 in) |
121.5 x 63.1 x 10.57 mm (4.78 x 2.48 x 0.42 in) |
| Weight | 172.9 g (6.07.0.32 oz) | 114 g (4.02 oz) | 118 g (4.16 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 1700 / 2100 or HSDPA 1700 / 1900 / 2100 HSDPA 850 / 1900 / 2100 |
HSDPA 900 / 2100 | HSDPA 900 / 2100 |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail | SMS, MMS, Push Mail, EMail |
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| OS | Android OS, v2.3.4 (Gingerbread) | Android OS, v4.0 (Ice Cream Sandwich) | Android OS, v4.2 (Jelly Bean) |
| Processor | Dual-core 1.5 GHz Scorpion, Qualcomm Snapdragon S3 APQ8060 | 1 GHz | Dual-core 1.2 GHz Cortex-A9, Broadcom BCM21664 |
| GPU | Adreno 220 | - | Broadcom VideoCore IV |
| RAM | 1 GB | 512 MB | 768 MB |
| Internal Memory | 16 GB storage | 4 GB storage | 4 GB (1.9 GB user available) |
| External Memory | microSD, up to 32GB | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | S-LCD capacitive touchscreen | Super LCD capacitive touchscreen | TFT Capacitive Touchscreen, PLS |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.3 inches | 4.0 inches | 4.0 inches |
| Resolution | 540 x 960 pixels (256 ppi) | 480 x 800 pixels (233 ppi) | 480 x 800 pixels (233 ppi) |
| Screen-to-Body Ratio | 59.84% | 61.81% | 59.52% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | - | Stereo FM radio with RDS |
| Games | Yes | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 5 MP, 2592х1944 pixels | 5 MP, 2592х1944 pixels |
| Flash | dual-LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Touch-focus, Face Detection, SmartShot, BurstShot, SweepShot, ClearShot | Auto focus, Geo-tagging | Auto focus, Geo-tagging |
| Video | Yes, 1080p | Yes, WVGA | Yes, 720p@30fps |
| Front Camera | Yes, 2 MP [Similar] | No [Similar] | Yes, VGA [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 42 Mbps; HSUPA | HSDPA, HSUPA | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v3.0 with A2DP, EDR | Yes, v3.0 with A2DP | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot, Wi-Fi Direct |
| USB | Yes, microUSB (MHL) v2.0 | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | - | Yes, with A-GPS support and GLONASS |
| Browser | HTML, Adobe Flash | HTML | HTML5 |
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| Internal | 16GB storage, 1 GB RAM | 4 GB storage, 512 MB RAM | 4 GB (1.9 GB user available), 768 MB RAM |
| Expandable Storage | microSD, up to 32GB | microSD, up to 32 GB | 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 | Standard battery, Li-Ion | Standard battery, Li-Ion Battery | Standard battery, Li-Ion |
| Capacity | 1730 mAh | 1650 mAh | 1500 mAh |
| Stand by | Up to 264 h | - | Up to 280 h (3G) |
| Talk Time | Up to 6 h | - | Up to 8 h (3G) |
