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| Phone | NEC 525 | ZTE Z222 / Z223 | LG PM-225 | Nokia N900 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
2" diag. 4 : 3 |
? |
3.5" diag. 5 : 3 |
| Display Resolution & Type |
162 x 216 pixels LCD (TFT/TFD) |
176 x 220 pixels (~141 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (STN) |
800 x 480 pixels (~267 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 800 mAh | 900 mAh | 1,000 mAh | 1,320 mAh |
| Processor | ? | QSC6270 | ? | 600 MHz TI OMAP 3430 (ARM Cortex-A8) |
| RAM | ? | 64 MB | ? | ? |
| Storage | ? raw hardware | 128 MB | ? raw hardware | ? raw hardware |
| Main Camera | Yes | Yes | Yes | 5 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | ? | - | ? |
| Front Camera | - | - | - | - |
| Weight |
4.03 oz (114g) |
3.24 oz (92g) |
3.35 oz (95g) |
6.38 oz (181g) |
| Dimensions |
4.12" x 1.88" x 1.06" (105 x 48 x 26.9 mm) |
3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm) |
3.53" x 1.76" x 0.93" (90 x 45 x 23.6 mm) |
4.36" x 2.35" x 0.69" (111 x 60 x 17.6 mm) |
| Form Factor | Clamshell | Clamshell | Clamshell | Slide |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
GSM: 850, 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 1900 |
CDMA: 850, 1900 AMPS: 850 |
WCDMA: 1, 4, 8 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | HSDPA 3.6 | 1xRTT | HSPA 10.1 |
| Features | ||||
| GPS / Location | - | - | Yes | Yes |
| Accessibility | ||||
| Hearing Aid Compatible | - | Yes | - | Yes |
| Multiple Languages | Yes | Yes | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | - |
| Alerts | ||||
| Extra Display | Yes | Yes | Yes | - |
| Ringer Profiles | Yes | Yes | - | - |
| Connectivity | ||||
| Bluetooth | - | Yes | - | Yes |
| Infrared (IR) | Yes | - | - | - |
| USB | Yes |
Yes Micro-USB |
Yes |
Yes Micro-USB |
| Wi-Fi | - | - | - |
Yes 802.11 b,g |
| Contacts | ||||
| Picture ID | Yes | Yes | Yes | Yes |
| Ringer ID | Yes | Yes | Yes | - |
| Voice Dialing | Yes | - | Yes | - |
| Customization | ||||
| Custom Graphics | Yes | Yes | Yes | Yes |
| Custom Ringtones | Yes | Yes | Yes | Yes |
| Real-Music Ringers | - | Yes | - | Yes |
| Data & Network | ||||
| Data Tethering | Yes | - | - | - |
| WAP / Web Browser | Yes | Yes | Yes | Yes |
| Input | ||||
| Predictive Text Entry | Yes | Yes | Yes | - |
| Side Keys | Yes | Yes | Yes | Yes |
| Stylus | - | - | - | Yes |
| Text Keyboard, Hardware | - | - | - | Yes |
| Touch Screen | - | - | - | Yes |
| Memory | ||||
| Memory Card Slot | - | - | - | Yes |
| Messaging | ||||
| Email Client | Yes | Yes | - | Yes |
| EMS / Picture Messaging | Yes | - | - | - |
| Instant Messaging | - | - | - | Yes |
| MMS | Yes | Yes | - | - |
| Text Messaging Templates | - | Yes | - | - |
| Music | ||||
| FM Radio | - | Yes * | - | - |
| FM Transmitter | - | - | - | Yes |
| Headphone Jack (3.5mm) | - | - | - | Yes |
| Music Player | - | - | - | Yes |
| Stereo Speakers | - | - | - | Yes |
| Photo & Video | ||||
| DLNA | - | - | - | Yes |
| TV Output | - | - | - | Yes |
| Video Calling | - | - | - | Yes * |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes | Yes |
| To-Do List | Yes | - | - | - |
| Voice Memo | Yes | Yes | Yes | - |
| Software | ||||
| Games | Yes | Yes | Yes | Yes |
| Java (J2ME) | Yes | Yes | Yes | - |
| Voice | ||||
| Headset Jack (2.5 mm) | Yes | - | Yes | - |
| Speaker Phone | - | Yes | Yes | Yes |
| * Some versions only | ||||
| NEC 525 | ZTE Z222 / Z223 | LG PM-225 | Nokia N900 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | NEC 525 | ZTE Z222 / Z223 | LG PM-225 | Nokia N900 |
