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| Phone | Samsung Byline R310 | Samsung SGH-A657 | Motorola Charm | ZTE Flash |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
1.8" diag. 4 : 3 |
? |
2.8" diag. 4 : 3 |
4.5" diag. 16 : 9 |
| Display Resolution & Type |
128 x 160 pixels (~116 ppi) LCD (STN) |
176 x 220 pixels LCD (TFT/TFD) |
320 x 240 pixels (~143 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~326 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | 60 Hz |
| Battery | 800 mAh | 1,420 mAh | 1,170 mAh | 1,780 mAh |
| Processor | ? | ? | 720 MHz TI OMAP3410 | 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960 |
| RAM | ? | ? | ? | 1 GB |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | 8 GB |
| Main Camera | - | - | 3 megapixel | 12 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | - | ? | 1080p HD |
| Front Camera | - | - | - | 1 megapixel |
| Weight |
3.25 oz (92g) |
4.34 oz (123g) |
3.88 oz (110g) |
5.2 oz (147g) |
| Dimensions |
3.5" x 1.7" x 0.77" (89 x 43 x 19.6 mm) |
4.53" x 2.05" x 0.77" (115 x 52 x 19.6 mm) |
3.87" x 2.65" x 0.45" (98 x 67 x 11.4 mm) |
5.27" x 2.56" x 0.38" (134 x 65 x 9.7 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android | Android |
| Network Bands |
CDMA: 850, 1700, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 25 CDMA: 800, 850, 1900 |
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| Data Technology | 1xRTT | HSDPA 3.6 | HSDPA 3.6 | LTE (Cat 3) |
| Features | ||||
| Flashlight | - | Yes | - | - |
| GPS / Location | Yes | Yes | n/a | n/a |
| Ruggedized | - | Yes | - | - |
| Accessibility | ||||
| Adjustable Text Size | - | - | n/a | n/a |
| Hearing Aid Compatible |
Yes M4 (very compatible) |
- | - |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Mobile Hotspot | - | - | n/a | n/a |
| NFC | - | - | - | Yes |
| USB | - | Yes |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
| Contacts | ||||
| Picture ID | Yes | Yes | n/a | n/a |
| Ringer ID | Yes | Yes | n/a | n/a |
| Voice Dialing | Yes | - | n/a | n/a |
| Customization | ||||
| Custom Graphics | Yes | Yes | n/a | n/a |
| Custom Ringtones | Yes | 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 | Yes | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | 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 | Yes | n/a | n/a |
| Text Messaging Templates | Yes | Yes | n/a | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | Yes | Yes |
| Music Player | - | Yes | n/a | n/a |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | n/a |
| Calculator | Yes | Yes | n/a | n/a |
| Calendar | Yes | Yes | n/a | n/a |
| To-Do List | - | Yes | n/a | n/a |
| Voice Memo | - | Yes | n/a | n/a |
| Software | ||||
| BREW | Yes | - | n/a | n/a |
| Games | Yes | Yes | n/a | n/a |
| Java (J2ME) | - | Yes | n/a | n/a |
| Voice | ||||
| HD Voice | - | - | - | Yes |
| Push-To-Talk | Yes | Yes | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Samsung Byline R310 | Samsung SGH-A657 | Motorola Charm | ZTE Flash | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Byline R310 | Samsung SGH-A657 | Motorola Charm | ZTE Flash |
