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| Phone | ZTE Speed | Samsung SCH-A770 | Samsung Wafer R510 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Not yet released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
4.5" diag. 16 : 9 |
? |
1.9" diag. 4 : 3 |
| Display Resolution & Type |
540 x 960 pixels (~245 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
220 x 176 pixels (~148 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | ? |
| Battery | 2,000 mAh | 1,100 mAh | 800 mAh |
| Processor | 1.2 GHz Qualcomm Snapdragon 410 MSM8916 | ? | ? |
| RAM | 1 GB | ? | ? |
| Storage | 8 GB | ? raw hardware | ? raw hardware |
| Main Camera | 5 megapixel | 1 megapixel | 1 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | 720p HD | ? | ? |
| Front Camera | 2 megapixel | - | - |
| Weight |
4.8 oz (136g) |
? |
2.47 oz (70g) |
| Dimensions |
5.3" x 2.6" x 0.4" (135 x 66 x 10.2 mm) |
? |
4.45" x 1.97" x 0.33" (113 x 50 x 8.4 mm) |
| Form Factor | Slab | Clamshell | Slab |
| Platform / OS | Android | (proprietary) | (proprietary) |
| Network Bands |
4G LTE: 25, 26, 41 CDMA: 800, 850, 1900 |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
| Data Technology | LTE (Cat 3) | 1xRTT | EVDO r0 |
| Features | |||
| GPS / Location | n/a | Yes | Yes |
| Accessibility | |||
| Adjustable Text Size | n/a | - | - |
| Hearing Aid Compatible | Yes | - | Yes |
| Multiple Languages | n/a | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes |
| Alerts | |||
| Extra Display | - | Yes | - |
| Ringer Profiles | - | Yes | - |
| Connectivity | |||
| Bluetooth |
Yes Classic Audio |
- |
Yes Classic Audio |
| Mobile Hotspot | n/a | - | - |
| USB |
Yes Micro-USB |
- | - |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- | - |
| Contacts | |||
| Picture ID | n/a | Yes | Yes |
| Ringer ID | n/a | Yes | - |
| Voice Dialing | n/a | Yes | Yes |
| Customization | |||
| Custom Graphics | n/a | Yes | Yes |
| Custom Ringtones | n/a | Yes | Yes |
| Real-Music Ringers | n/a | - | - |
| Data & Network | |||
| Data Tethering | n/a | Yes | - |
| WAP / Web Browser | n/a | Yes | Yes |
| Input | |||
| Predictive Text Entry | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes |
| Touch Screen | Yes | - | - |
| Memory | |||
| Memory Card Slot | Yes | Yes | Yes |
| Messaging | |||
| Email Client | n/a | - | - |
| Instant Messaging | n/a | - | - |
| MMS | n/a | Yes | Yes |
| Text Messaging Templates | n/a | Yes | - |
| Music | |||
| Headphone Jack (3.5mm) | Yes | - | - |
| Music Player | n/a | - | Yes |
| Stereo Speakers | - | - | Yes |
| Productivity | |||
| Alarm | n/a | Yes | Yes |
| Calculator | n/a | Yes | Yes |
| Calendar | n/a | Yes | Yes |
| To-Do List | n/a | Yes | - |
| Voice Memo | n/a | Yes | Yes |
| Software | |||
| BREW | n/a | Yes | Yes |
| Games | n/a | Yes | Yes |
| Voice | |||
| Call Screening | - | Yes | - |
| HD Voice | Yes | - | - |
| Headset Jack (2.5 mm) | n/a | Yes | - |
| Speaker Phone | Yes | - | Yes |
| ZTE Speed | Samsung SCH-A770 | Samsung Wafer R510 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Speed | Samsung SCH-A770 | Samsung Wafer R510 |











