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| Phone | Sony Ericsson Z550a | HTC Touch Diamond (CDMA) | Alcatel 3v | Palm Treo 755p |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
1.9" diag. 4 : 3 |
2.8" diag. 4 : 3 |
6" diag. 18 : 9 |
? |
| Display Resolution & Type |
176 x 220 pixels (~148 ppi) LCD (TFT/TFD) |
480 x 640 pixels (~286 ppi) LCD (TFT/TFD) |
1080 x 2160 pixels (~402 ppi) LCD (TFT/TFD) |
320 x 320 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | ? |
| Battery | ? | 1,340 mAh | 3,000 mAh | 1,600 mAh |
| Processor | ? | 528 MHz Qualcomm MSM7501A | 1.5 GHz MediaTek MT8735A | 312 MHz Intel XScale |
| RAM | ? | ? | 2 GB | ? |
| Storage | ? raw hardware | ? raw hardware | 16 GB | ? raw hardware |
| Main Camera | 1 megapixel | 3 megapixel | 12 megapixel | 1 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | CIF (352 x 288) | 1080p HD | CIF (352 x 288) |
| Front Camera | - | - | 5 megapixel | - |
| Weight |
3.26 oz (92g) |
4.1 oz (116g) |
5.47 oz (155g) |
5.64 oz (160g) |
| Dimensions |
3.43" x 1.77" x 0.79" (87 x 45 x 20.1 mm) |
3.98" x 2" x 0.6" (101 x 51 x 15.2 mm) |
6.38" x 2.99" x 0.32" (162 x 76 x 8 mm) |
4.4" x 2.3" x 0.84" (112 x 58 x 21.3 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Windows Mobile Professional | Android | Palm OS |
| Network Bands |
GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 28 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | GPRS | EVDO rA | LTE (Cat 4) | EVDO r0 |
| Features | ||||
| Fingerprint Reader | - | - |
Yes stand-alone |
- |
| Flashlight | - | - | Yes | - |
| GPS / Location | - | n/a | n/a | n/a |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | n/a | n/a |
| Hearing Aid Compatible | - | Yes | Yes | Yes |
| Multiple Languages | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Ringer Profiles | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | Yes |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
| Infrared (IR) | - | - | - | Yes |
| USB | Yes |
Yes Mini-USB |
Yes Micro-USB |
Yes |
| Wi-Fi | - |
Yes 802.11 b,g |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | ||||
| Picture ID | Yes | n/a | n/a | n/a |
| Ringer ID | Yes | n/a | n/a | n/a |
| Voice Dialing | Yes | n/a | n/a | n/a |
| Customization | ||||
| Custom Graphics | Yes | n/a | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a | n/a |
| Real-Music Ringers | Yes | n/a | n/a | n/a |
| Data & Network | ||||
| Data Tethering | Yes | n/a | n/a | n/a |
| External Antenna Jack | - | n/a | n/a | n/a |
| WAP / Web Browser | Yes | n/a | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Stylus | - | Yes | - | - |
| Text Keyboard, Hardware | - | - | - | Yes |
| Touch Screen | - | Yes | Yes | Yes |
| Memory | ||||
| Memory Card Slot | Yes | Yes * | Yes | Yes |
| Messaging | ||||
| Email Client | Yes | n/a | n/a | n/a |
| Instant Messaging | - | n/a | n/a | n/a |
| MMS | Yes | n/a | n/a | n/a |
| Text Messaging Templates | Yes | n/a | n/a | n/a |
| Music | ||||
| FM Radio | Yes | - | Yes | - |
| Headphone Jack (3.5mm) | - | - | Yes | - |
| Music Player | Yes | n/a | n/a | n/a |
| Productivity | ||||
| Alarm | Yes | n/a | n/a | n/a |
| Calculator | Yes | n/a | n/a | n/a |
| Calendar | Yes | n/a | n/a | n/a |
| To-Do List | Yes | n/a | n/a | n/a |
| Voice Memo | Yes | n/a | n/a | n/a |
| Software | ||||
| Games | 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 * | - | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Sony Ericsson Z550a | HTC Touch Diamond (CDMA) | Alcatel 3v | Palm Treo 755p | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Sony Ericsson Z550a | HTC Touch Diamond (CDMA) | Alcatel 3v | Palm Treo 755p |
