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| Phone | ZTE Z331 | ZTE Agent | Palm Treo 600 (CDMA) | Nokia E90 | Kyocera DuraForce XD |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
2.4" diag. 4 : 3 |
? | ? |
5.7" diag. 16 : 9 |
| Display Resolution & Type |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
160 x 160 pixels LCD (Color) |
800 x 352 pixels LCD (TFT/TFD) |
720 x 1280 pixels (~258 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? | 60 Hz |
| Battery | 950 mAh | 900 mAh | ? | 1,500 mAh | 3,700 mAh |
| Processor | ? | ? | ? | 332 MHz ARM 11 | 1.6 GHz Qualcomm Snapdragon 400 (MSM8928) |
| RAM | ? | ? | ? | ? | 2 GB |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware | 16 GB |
| Main Camera | 3 megapixel | 1 megapixel | Yes | 3 megapixel | 8 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | QCIF (176 x 144) | ? | - | VGA (640 x 480) | 1080p HD |
| Front Camera | - | - | - | - | 2 megapixel |
| Weight |
4 oz (113g) |
3.53 oz (100g) |
6.2 oz (176g) |
7.41 oz (210g) |
10.83 oz (307g) |
| Dimensions |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
4.3" x 1.9" x 0.6" (109 x 48 x 15.2 mm) |
4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm) |
5.2" x 2.24" x 0.79" (132 x 57 x 20.1 mm) |
6.57" x 3.4" x 0.55" (167 x 86 x 14 mm) |
| Form Factor | Clamshell | Slab | Slab | Clamshell | Slab |
| Platform / OS | (proprietary) | (proprietary) | Palm OS | S60 (Symbian) | Android |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1700, 1900 |
CDMA: 850, 1900 |
WCDMA: 1 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 17, 20, 29 WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900 |
| Data Technology | HSDPA 3.6 | 1xRTT | 1xRTT | HSDPA 3.6 | LTE (Cat 3) |
| Features | |||||
| Flashlight | - | - | - | - | Yes |
| GPS / Location | Yes | Yes | n/a | n/a | n/a |
| Ruggedized | - | - | - | - | Yes |
| Water-Resistant | - | - | - | - |
Yes IPX8 (SCUBA) |
| Accessibility | |||||
| Adjustable Text Size | - | - | n/a | n/a | n/a |
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
- | - |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | - | Yes |
| Alerts | |||||
| Extra Display | Yes | - | - | Yes | - |
| Ringer Profiles | Yes | - | - | Yes | - |
| Connectivity | |||||
| Bluetooth | Yes | Yes | - | Yes | Yes |
| Infrared (IR) | - | - | Yes | Yes | - |
| Mobile Hotspot | - | - | n/a | n/a | n/a |
| NFC | - | - | - | - | Yes |
| USB |
Yes Micro-USB |
Yes Micro-USB |
Yes |
Yes Mini-USB |
Yes Micro-USB |
| Wi-Fi | - | - | - |
Yes 802.11 b,g |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | |||||
| Picture ID | Yes | - | n/a | n/a | n/a |
| Ringer ID | Yes | Yes | n/a | n/a | n/a |
| Voice Dialing | - | - | n/a | n/a | n/a |
| Customization | |||||
| Custom Graphics | Yes | Yes | n/a | n/a | n/a |
| Custom Ringtones | Yes | Yes | n/a | n/a | n/a |
| Real-Music Ringers | Yes | Yes | n/a | n/a | n/a |
| Data & Network | |||||
| Data Tethering | Yes | - | n/a | n/a | n/a |
| WAP / Web Browser | Yes | Yes | n/a | n/a | n/a |
| Input | |||||
| Predictive Text Entry | Yes | Yes | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes | Yes | - |
| Touch Screen | - | - | Yes | - |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | Yes | Yes | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | Yes | Yes | n/a | n/a | n/a |
| Instant Messaging | Yes | Yes | n/a | n/a | n/a |
| MMS | Yes | Yes | n/a | n/a | n/a |
| Text Messaging Templates | Yes | Yes | n/a | n/a | n/a |
| Music | |||||
| FM Radio | - | - | - | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | - | - | Yes |
| Music Player | Yes | Yes | n/a | n/a | n/a |
| Photo & Video | |||||
| Miracast | - | - | - | - | Yes |
| Video Calling | - | - | n/a | n/a | n/a |
| Power | |||||
| Fast Charging | - | - | - | - | Yes |
| Productivity | |||||
| Alarm | Yes | Yes | n/a | n/a | n/a |
| Calculator | Yes | Yes | n/a | n/a | n/a |
| Calendar | Yes | Yes | n/a | n/a | n/a |
| To-Do List | - | - | n/a | n/a | n/a |
| Voice Memo | Yes | Yes | n/a | n/a | n/a |
| Software | |||||
| BREW | - | Yes | n/a | n/a | n/a |
| Games | Yes | Yes | n/a | n/a | n/a |
| Java (J2ME) | Yes | - | n/a | n/a | n/a |
| Voice | |||||
| HD Voice | - | - | - | - | Yes |
| Headset Jack (2.5 mm) | - | - | n/a | n/a | n/a |
| Push-To-Talk | - | - | - | Yes * | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| ZTE Z331 | ZTE Agent | Palm Treo 600 (CDMA) | Nokia E90 | Kyocera DuraForce XD | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z331 | ZTE Agent | Palm Treo 600 (CDMA) | Nokia E90 | Kyocera DuraForce XD |
