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| Phone | Samsung SGH-A657 | Motorola Backflip | HTC Desire 555 | Samsung SCH-A990 | AT&T Vista |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
3.1" diag. 5 : 3 |
5" diag. 16 : 9 |
? |
5.5" diag. 18 : 9 |
| Display Resolution & Type |
176 x 220 pixels LCD (TFT/TFD) |
320 x 480 pixels (~186 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~294 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
720 x 1440 pixels (~293 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | ? | 60 Hz |
| Battery | 1,420 mAh | 1,400 mAh | 2,200 mAh | 1,000 mAh | 2,450 mAh |
| Processor | ? | 528 MHz Qualcomm MSM7201a | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | ? | 2 GHz MediaTek Helio A22 (MT6761V) |
| RAM | ? | ? | 2 GB | ? | 3 GB |
| Storage | ? raw hardware | ? raw hardware | 16 GB | ? raw hardware | 32 GB |
| Main Camera | - | 5 megapixel | 8 megapixel | 3 megapixel | 8 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | CIF (352 x 288) | 720p HD | ? | 1080p HD |
| Front Camera | - | - | 5 megapixel | - | 5 megapixel |
| Weight |
4.34 oz (123g) |
4.7 oz (133g) |
4.93 oz (140g) |
4.4 oz (125g) |
5.51 oz (156g) |
| Dimensions |
4.53" x 2.05" x 0.77" (115 x 52 x 19.6 mm) |
4.25" x 2.09" x 0.6" (108 x 53 x 15.3 mm) |
5.78" x 2.79" x 0.33" (147 x 71 x 8.4 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
5.88" x 2.82" x 0.35" (149 x 72 x 8.9 mm) |
| Form Factor | Slab | Clamshell | Slab | Clamshell | Slab |
| Platform / OS | (proprietary) | Android | Android | (proprietary) | Android |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30 WCDMA: 1, 2, 4, 5, 8 |
| Data Technology | HSDPA 3.6 | HSPA 7.2 | LTE (Cat 4) | EVDO r0 | LTE (Cat 4) |
| Features | |||||
| Flashlight | Yes | - | Yes | Yes | Yes |
| GPS / Location | Yes | n/a | n/a | Yes | n/a |
| Ruggedized | Yes | - | - | - | - |
| Accessibility | |||||
| Hearing Aid Compatible | - | Yes | Yes * | Yes | Yes |
| Multiple Languages | Yes | n/a | n/a | Yes | n/a |
| TTY/TDD (Digital) | Yes | - | Yes | Yes | - |
| Alerts | |||||
| Extra Display | - | - | - | Yes | - |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | Yes | Yes |
| USB | Yes |
Yes Micro-USB |
Yes Micro-USB |
Yes |
Yes USB Type C |
| Wi-Fi | - |
Yes 802.11 b,g |
Yes 4 (802.11 b,g,n) |
- | Yes |
| Contacts | |||||
| Picture ID | Yes | n/a | n/a | Yes | n/a |
| Ringer ID | Yes | n/a | n/a | Yes | n/a |
| Voice Dialing | - | n/a | n/a | Yes | n/a |
| Customization | |||||
| Custom Graphics | Yes | n/a | n/a | Yes | n/a |
| Custom Ringtones | Yes | n/a | n/a | Yes | n/a |
| Real-Music Ringers | Yes | n/a | n/a | Yes | n/a |
| Data & Network | |||||
| Data Tethering | Yes | n/a | n/a | Yes | n/a |
| WAP / Web Browser | Yes | n/a | n/a | Yes | n/a |
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - | - |
| Touch Screen | - | Yes | Yes | - | Yes |
| Memory | |||||
| Memory Card Slot | Yes | Yes | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | Yes | n/a | n/a | - | n/a |
| EMS / Picture Messaging | - | n/a | n/a | Yes | n/a |
| Instant Messaging | Yes | n/a | n/a | - | n/a |
| MMS | Yes | n/a | n/a | Yes | n/a |
| Text Messaging Templates | Yes | n/a | n/a | Yes | n/a |
| Music | |||||
| FM Radio | - | - | Yes | - | - |
| Headphone Jack (3.5mm) | - | Yes | Yes | - | Yes |
| Music Player | Yes | n/a | n/a | Yes | n/a |
| Stereo Speakers | - | - | - | Yes | - |
| Photo & Video | |||||
| DLNA | - | - | Yes | - | - |
| Miracast | - | - | Yes | - | - |
| TV Output | - | - | - | Yes | - |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | Yes | n/a |
| Calculator | Yes | n/a | n/a | Yes | n/a |
| Calendar | Yes | n/a | n/a | Yes | n/a |
| To-Do List | Yes | n/a | n/a | - | n/a |
| Voice Memo | Yes | n/a | n/a | Yes | n/a |
| Software | |||||
| BREW | - | n/a | n/a | Yes | n/a |
| Games | Yes | n/a | n/a | Yes | n/a |
| Java (J2ME) | Yes | n/a | n/a | - | n/a |
| Voice | |||||
| HD Voice | - | - | Yes | - | Yes |
| Push-To-Talk | Yes | - | - | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-A657 | Motorola Backflip | HTC Desire 555 | Samsung SCH-A990 | AT&T Vista | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-A657 | Motorola Backflip | HTC Desire 555 | Samsung SCH-A990 | AT&T Vista |
