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| Phone | Sony Ericsson Z550a | Palm Treo 755p | Nokia 6210 Navigator | Sony Ericsson Z310 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Not yet released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
1.9" diag. 4 : 3 |
? |
2.4" diag. 4 : 3 |
? |
| Display Resolution & Type |
176 x 220 pixels (~148 ppi) LCD (TFT/TFD) |
320 x 320 pixels LCD (TFT/TFD) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (STN) |
| Display Refresh | ? | ? | ? | ? |
| Battery | ? | 1,600 mAh | 950 mAh | ? |
| Processor | ? | 312 MHz Intel XScale | 369 MHz ARM 11 | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 1 megapixel | 1 megapixel | 3 megapixel | Yes |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | CIF (352 x 288) | VGA (640 x 480) | - |
| Front Camera | - | - | - | - |
| Weight |
3.26 oz (92g) |
5.64 oz (160g) |
4.13 oz (117g) |
3.2 oz (91g) |
| Dimensions |
3.43" x 1.77" x 0.79" (87 x 45 x 20.1 mm) |
4.4" x 2.3" x 0.84" (112 x 58 x 21.3 mm) |
4.06" x 1.93" x 0.59" (103 x 49 x 14.9 mm) |
3.4" x 1.8" x 1" (86 x 46 x 25.4 mm) |
| Form Factor | Clamshell | Slab | Slide | Clamshell |
| Platform / OS | (proprietary) | Palm OS | S60 (Symbian) | (proprietary) |
| Network Bands |
GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
WCDMA: 1, 8 GSM: 850, 900, 1800, 1900 |
GSM: 850, 1800, 1900 |
| Data Technology | GPRS | EVDO r0 | HSDPA 3.6 | EDGE |
| Features | ||||
| GPS / Location | - | n/a | n/a | - |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | n/a | - |
| Hearing Aid Compatible | - | Yes | - | Yes |
| Multiple Languages | Yes | n/a | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | - | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | Yes |
| Ringer Profiles | Yes | - | Yes | Yes |
| Connectivity | ||||
| Bluetooth | Yes |
Yes Classic Audio |
Yes Classic Audio |
Yes |
| Infrared (IR) | - | Yes | - | Yes |
| USB | Yes | Yes |
Yes Micro-USB |
Yes |
| Contacts | ||||
| Picture ID | Yes | n/a | n/a | Yes |
| Ringer ID | Yes | n/a | n/a | Yes |
| Voice Dialing | Yes | n/a | n/a | - |
| Customization | ||||
| Custom Graphics | Yes | n/a | n/a | Yes |
| Custom Ringtones | Yes | n/a | n/a | Yes |
| Real-Music Ringers | Yes | n/a | n/a | Yes |
| Data & Network | ||||
| Data Tethering | Yes | n/a | n/a | Yes |
| External Antenna Jack | - | n/a | n/a | - |
| WAP / Web Browser | Yes | n/a | n/a | Yes |
| Input | ||||
| Predictive Text Entry | Yes | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - |
| Touch Screen | - | Yes | - | - |
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | - |
| Messaging | ||||
| Email Client | Yes | n/a | n/a | Yes |
| Instant Messaging | - | n/a | n/a | - |
| MMS | Yes | n/a | n/a | Yes |
| Text Messaging Templates | Yes | n/a | n/a | Yes |
| Music | ||||
| FM Radio | Yes | - | Yes | - |
| Music Player | Yes | n/a | n/a | - |
| Photo & Video | ||||
| Video Calling | - | n/a | n/a | - |
| Productivity | ||||
| Alarm | Yes | n/a | n/a | Yes |
| Calculator | Yes | n/a | n/a | Yes |
| Calendar | Yes | n/a | n/a | Yes |
| To-Do List | Yes | n/a | n/a | Yes |
| Voice Memo | Yes | n/a | n/a | Yes |
| Software | ||||
| Games | Yes | n/a | n/a | Yes |
| Java (J2ME) | Yes | n/a | n/a | Yes |
| Voice | ||||
| Headset Jack (2.5 mm) | - | n/a | n/a | - |
| Push-To-Talk | Yes * | - | Yes * | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Sony Ericsson Z550a | Palm Treo 755p | Nokia 6210 Navigator | Sony Ericsson Z310 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Sony Ericsson Z550a | Palm Treo 755p | Nokia 6210 Navigator | Sony Ericsson Z310 |
