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| Phone | ZTE Avid 4 | Samsung SGH-A157 | Samsung SCH-A990 | HTC Merge |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
5" diag. 16 : 9 |
1.8" diag. 4 : 3 |
? |
3.8" diag. 5 : 3 |
| Display Resolution & Type |
480 x 854 pixels (~196 ppi) LCD (TFT/TFD) |
128 x 160 pixels (~116 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
480 x 800 pixels (~246 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | ? | 60 Hz |
| Battery | 2,520 mAh | 800 mAh | 1,000 mAh | 1,400 mAh |
| Processor | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | ? | ? | 800 MHz Qualcomm S2 MSM7630 |
| RAM | 2 GB | ? | ? | ? |
| Storage | 16 GB | 256 MB | ? raw hardware | ? raw hardware |
| Main Camera | 8 megapixel | - | 3 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 720p HD | - | ? | 720p HD |
| Front Camera | 5 megapixel | - | - | - |
| Weight |
5.6 oz (159g) |
2.99 oz (85g) |
4.4 oz (125g) |
6.98 oz (198g) |
| Dimensions |
5.7" x 2.8" x 0.36" (145 x 71 x 9.1 mm) |
3.83" x 1.84" x 0.65" (97 x 47 x 16.5 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
4.74" x 2.43" x 0.59" (120 x 62 x 15 mm) |
| Form Factor | Slab | Clamshell | Clamshell | Slide |
| Platform / OS | Android | (proprietary) | (proprietary) | Android |
| Network Bands |
4G LTE: 2, 4, 5, 12, 66 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
| Data Technology | LTE (Cat 4) | ? | EVDO r0 | EVDO rA |
| Features | ||||
| Flashlight | Yes | - | Yes | Yes |
| GPS / Location | n/a | Yes | Yes | n/a |
| Accessibility | ||||
| Adjustable Text Size | n/a | Yes | - | n/a |
| Hearing Aid Compatible |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4 (very compatible) |
Yes M3 (mostly compatible) |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | n/a | Yes | Yes | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | - |
| Alerts | ||||
| Extra Display | - | - | Yes | - |
| Ringer Profiles | - | Yes | - | - |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | Yes |
| Mobile Hotspot | n/a | - | - | n/a |
| USB |
Yes Micro-USB |
Yes Micro-USB |
Yes | Yes |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- | - |
Yes 4 (802.11 b,g,n) |
| Contacts | ||||
| Picture ID | n/a | Yes | Yes | n/a |
| Ringer ID | n/a | Yes | Yes | n/a |
| Voice Dialing | n/a | - | Yes | n/a |
| Customization | ||||
| Custom Graphics | n/a | Yes | Yes | n/a |
| Custom Ringtones | n/a | Yes | Yes | n/a |
| Real-Music Ringers | n/a | Yes | Yes | n/a |
| Data & Network | ||||
| Data Tethering | n/a | - | Yes | n/a |
| WAP / Web Browser | n/a | Yes | Yes | n/a |
| Input | ||||
| Predictive Text Entry | n/a | Yes | Yes | n/a |
| Side Keys | Yes | - | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes |
| Touch Screen |
Yes Capacitive |
- | - |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | - | Yes | Yes |
| Messaging | ||||
| Email Client | n/a | - | - | n/a |
| EMS / Picture Messaging | n/a | - | Yes | n/a |
| Instant Messaging | n/a | - | - | n/a |
| MMS | n/a | Yes | Yes | n/a |
| Text Messaging Templates | n/a | Yes | Yes | n/a |
| Music | ||||
| FM Radio | Yes | - | - | Yes |
| Headphone Jack (3.5mm) | Yes | - | - | Yes |
| Music Player | n/a | - | Yes | n/a |
| Stereo Speakers | - | - | Yes | - |
| Photo & Video | ||||
| TV Output | - | - | Yes | - |
| Productivity | ||||
| Alarm | n/a | Yes | Yes | n/a |
| Calculator | n/a | Yes | Yes | n/a |
| Calendar | n/a | Yes | Yes | n/a |
| To-Do List | n/a | Yes | - | n/a |
| Voice Memo | n/a | Yes | Yes | n/a |
| Software | ||||
| BREW | n/a | - | Yes | n/a |
| Games | n/a | - | Yes | n/a |
| Voice | ||||
| HD Voice | Yes | - | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| ZTE Avid 4 | Samsung SGH-A157 | Samsung SCH-A990 | HTC Merge | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Avid 4 | Samsung SGH-A157 | Samsung SCH-A990 | HTC Merge |
