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| Phone | ZTE Prelude / Avail 2 | ZTE Z331 | Samsung Galaxy S 4 zoom | Samsung Wafer R510 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
3.5" diag. 5 : 3 |
2.4" diag. 4 : 3 |
4.3" diag. 16 : 9 |
1.9" diag. 4 : 3 |
| Display Resolution & Type |
320 x 480 pixels (~165 ppi) LCD (TFT/TFD) |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
540 x 960 pixels (~256 ppi) AMOLED |
220 x 176 pixels (~148 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 60 Hz | ? |
| Battery | 1,500 mAh | 950 mAh | 2,330 mAh | 800 mAh |
| Processor | 1 GHz Qualcomm Snapdragon MSM7225A | ? | 1.5 GHz Samsung Exynos 4212 | ? |
| RAM | 512 MB | ? | 1.5 GB | ? |
| Storage | 4 GB | ? raw hardware | 16 GB | ? raw hardware |
| Main Camera | 2 megapixel | 3 megapixel | 16 megapixel | 1 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | VGA (640 x 480) | QCIF (176 x 144) | 1080p HD | ? |
| Front Camera | - | - | 2 megapixel | - |
| Weight |
4.4 oz (125g) |
4 oz (113g) |
9.9 oz (281g) |
2.47 oz (70g) |
| Dimensions |
4.6" x 2.44" x 0.45" (117 x 62 x 11.4 mm) |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
4.94" x 2.5" x 1.06" (125 x 64 x 26.9 mm) |
4.45" x 1.97" x 0.33" (113 x 50 x 8.4 mm) |
| Form Factor | Slab | Clamshell | Slab | Slab |
| Platform / OS | Android | (proprietary) | Android | (proprietary) |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | HSPA 7.2 | HSDPA 3.6 | LTE (Cat 3) | EVDO r0 |
| Features | ||||
| GPS / Location | n/a | Yes | n/a | Yes |
| Accessibility | ||||
| Adjustable Text Size | n/a | - | n/a | - |
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | Yes | - | - |
| Ringer Profiles | - | Yes | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Infrared (IR) | - | - | 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 a,b,g,n) |
- |
| Contacts | ||||
| Picture ID | n/a | Yes | n/a | Yes |
| Ringer ID | n/a | Yes | n/a | - |
| Voice Dialing | n/a | - | n/a | Yes |
| Customization | ||||
| Custom Graphics | n/a | Yes | n/a | Yes |
| Custom Ringtones | n/a | Yes | n/a | Yes |
| Real-Music Ringers | n/a | Yes | n/a | - |
| Data & Network | ||||
| Data Tethering | n/a | Yes | n/a | - |
| WAP / Web Browser | n/a | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | n/a | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | n/a | Yes | n/a | - |
| Instant Messaging | n/a | Yes | n/a | - |
| MMS | n/a | Yes | n/a | Yes |
| Text Messaging Templates | n/a | Yes | n/a | - |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | - | Yes | - |
| Music Player | n/a | Yes | n/a | Yes |
| Stereo Speakers | - | - | - | Yes |
| Photo & Video | ||||
| DLNA | - | - | Yes | - |
| Miracast | - | - | Yes | - |
| TV Output | - | - | Yes | - |
| Productivity | ||||
| Alarm | n/a | Yes | n/a | Yes |
| Calculator | n/a | Yes | n/a | Yes |
| Calendar | n/a | Yes | n/a | Yes |
| Voice Memo | n/a | Yes | n/a | Yes |
| Software | ||||
| BREW | n/a | - | n/a | Yes |
| Games | n/a | Yes | n/a | Yes |
| Java (J2ME) | n/a | Yes | n/a | - |
| Voice | ||||
| Speaker Phone | Yes | Yes | Yes | Yes |
| ZTE Prelude / Avail 2 | ZTE Z331 | Samsung Galaxy S 4 zoom | Samsung Wafer R510 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Prelude / Avail 2 | ZTE Z331 | Samsung Galaxy S 4 zoom | Samsung Wafer R510 |
