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| Phone | Samsung SGH-A657 | HTC Amaze 4G | LG K20 / Harmony / Grace |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? |
4.3" diag. 16 : 9 |
5.3" diag. 16 : 9 |
| Display Resolution & Type |
176 x 220 pixels LCD (TFT/TFD) |
540 x 960 pixels (~256 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~277 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz |
| Battery | 1,420 mAh | 1,730 mAh | 2,800 mAh |
| Processor | ? | 1.5 GHz Qualcomm Snapdragon S3 dual-core | 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) |
| RAM | ? | 1 GB | 1.5 GB |
| Storage | ? raw hardware | 16 GB | 16 GB |
| Main Camera | - | 8 megapixel | 8 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | 1080p HD | 1080p HD |
| Front Camera | - | 2 megapixel | 5 megapixel |
| Weight |
4.34 oz (123g) |
6.1 oz (173g) |
5 oz (142g) |
| Dimensions |
4.53" x 2.05" x 0.77" (115 x 52 x 19.6 mm) |
5.12" x 2.58" x 0.46" (130 x 66 x 11.7 mm) |
5.9" x 3" x 0.3" (150 x 76 x 7.6 mm) |
| Form Factor | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | Android |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | HSDPA 3.6 | HSPA+ 42 | LTE (Cat 4) |
| Features | |||
| Flashlight | Yes | Yes | Yes |
| GPS / Location | Yes | n/a | n/a |
| Ruggedized | Yes | - | - |
| Accessibility | |||
| Hearing Aid Compatible | - |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | n/a |
| NFC | - | Yes | Yes * |
| USB | Yes | Yes |
Yes Micro-USB |
| Wi-Fi | - |
Yes 4 (802.11 a,b,g,n) |
Yes 4 (802.11 b,g,n) |
| Contacts | |||
| Picture ID | Yes | n/a | n/a |
| Ringer ID | Yes | n/a | n/a |
| Voice Dialing | - | n/a | n/a |
| Customization | |||
| Custom Graphics | Yes | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a |
| Real-Music Ringers | Yes | n/a | n/a |
| Data & Network | |||
| Data Tethering | Yes | n/a | n/a |
| WAP / Web Browser | Yes | n/a | n/a |
| Input | |||
| Predictive Text Entry | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | Yes | Yes | Yes |
| Messaging | |||
| Email Client | Yes | n/a | n/a |
| Instant Messaging | Yes | n/a | n/a |
| MMS | Yes | n/a | n/a |
| Text Messaging Templates | Yes | n/a | n/a |
| Music | |||
| FM Radio | - | Yes | Yes |
| Headphone Jack (3.5mm) | - | Yes | Yes |
| Music Player | Yes | n/a | n/a |
| Photo & Video | |||
| DLNA | - | Yes | - |
| TV Output | - | Yes | - |
| Productivity | |||
| Alarm | Yes | n/a | n/a |
| Calculator | Yes | n/a | n/a |
| Calendar | Yes | n/a | n/a |
| To-Do List | Yes | n/a | n/a |
| Voice Memo | Yes | n/a | n/a |
| Software | |||
| Games | Yes | n/a | n/a |
| Java (J2ME) | Yes | n/a | n/a |
| Voice | |||
| HD Voice | - | - | Yes |
| Push-To-Talk | Yes | - | - |
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| Samsung SGH-A657 | HTC Amaze 4G | LG K20 / Harmony / Grace | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-A657 | HTC Amaze 4G | LG K20 / Harmony / Grace |
