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| Phone | Siemens CX75 | Nokia N900 | ZTE Z221 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Not yet released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? |
3.5" diag. 5 : 3 |
2" diag. 4 : 3 |
| Display Resolution & Type |
132 x 176 pixels LCD (TFT/TFD) |
800 x 480 pixels (~267 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? |
| Battery | 750 mAh | 1,320 mAh | 900 mAh |
| Processor | ? | 600 MHz TI OMAP 3430 (ARM Cortex-A8) | ? |
| RAM | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | 142 MB |
| Main Camera | 1 megapixel | 5 megapixel | Yes |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | ? | ? | QCIF (176 x 144) |
| Front Camera | - | - | - |
| Weight |
3.46 oz (98g) |
6.38 oz (181g) |
3.24 oz (92g) |
| Dimensions |
4.33" x 1.88" x 0.74" (110 x 48 x 18.8 mm) |
4.36" x 2.35" x 0.69" (111 x 60 x 17.6 mm) |
3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm) |
| Form Factor | Slab | Slide | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
WCDMA: 1, 4, 8 GSM: 850, 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | HSPA 10.1 | HSDPA 3.6 |
| Features | |||
| GPS / Location | - | Yes | Yes |
| Accessibility | |||
| Hearing Aid Compatible | - | Yes | Yes |
| Multiple Languages | Yes | Yes | Yes |
| TTY/TDD (Digital) | - | - | Yes |
| Alerts | |||
| Extra Display | - | - | Yes |
| Ringer Profiles | Yes | - | Yes |
| Connectivity | |||
| Bluetooth |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
| Infrared (IR) | Yes | - | - |
| USB | Yes |
Yes Micro-USB |
Yes |
| Wi-Fi | - |
Yes 802.11 b,g |
- |
| Contacts | |||
| Picture ID | Yes | Yes | - |
| Ringer ID | Yes | - | - |
| Customization | |||
| Custom Graphics | Yes | Yes | Yes |
| Custom Ringtones | Yes | Yes | Yes |
| Real-Music Ringers | - | Yes | Yes |
| Data & Network | |||
| Data Tethering | Yes | - | - |
| WAP / Web Browser | Yes | Yes | Yes |
| Input | |||
| Predictive Text Entry | Yes | - | Yes |
| Side Keys | Yes | Yes | Yes |
| Stylus | - | Yes | - |
| Text Keyboard, Hardware | - | Yes | - |
| Touch Screen | - | Yes | - |
| Memory | |||
| Memory Card Slot | Yes | Yes | - |
| Messaging | |||
| Email Client | Yes | Yes | Yes |
| EMS / Picture Messaging | Yes | - | - |
| Instant Messaging | - | Yes | Yes |
| MMS | Yes | - | Yes |
| Text Messaging Templates | - | - | Yes |
| Music | |||
| FM Transmitter | - | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | - |
| Music Player | Yes | Yes | - |
| Stereo Speakers | - | Yes | - |
| Photo & Video | |||
| DLNA | - | Yes | - |
| TV Output | - | Yes | - |
| Video Calling | - | Yes * | - |
| Productivity | |||
| Alarm | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes |
| To-Do List | Yes | - | - |
| Voice Memo | Yes | - | Yes |
| Software | |||
| Games | Yes | Yes | Yes |
| Java (J2ME) | Yes | - | Yes |
| Voice | |||
| Push-To-Talk | Yes | - | - |
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| Siemens CX75 | Nokia N900 | ZTE Z221 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Siemens CX75 | Nokia N900 | ZTE Z221 |
