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| Phone | Sony Ericsson Z550a | ZTE Blade Vantage 2 | Siemens M55 | Samsung BlackJack SGH-i607 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
1.9" diag. 4 : 3 |
5" diag. 18 : 9 |
? | ? |
| Display Resolution & Type |
176 x 220 pixels (~148 ppi) LCD (TFT/TFD) |
480 x 960 pixels (~215 ppi) LCD (TFT/TFD) |
101 x 80 pixels LCD (Color) |
320 x 240 pixels LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | ? |
| Battery | ? | 2,050 mAh | 700 mAh | 1,200 mAh |
| Processor | ? | 2 GHz MediaTek MT6761 | ? | ? |
| RAM | ? | 2 GB | ? | ? |
| Storage | ? raw hardware | 16 GB | ? raw hardware | ? raw hardware |
| Main Camera | 1 megapixel | 5 megapixel | - | 1 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | 720p HD | - | QVGA (320 x 240) |
| Front Camera | - | 2 megapixel | - | - |
| Weight |
3.26 oz (92g) |
5.3 oz (150g) |
2.93 oz (83g) |
3.74 oz (106g) |
| Dimensions |
3.43" x 1.77" x 0.79" (87 x 45 x 20.1 mm) |
5.4" x 2.7" x 0.41" (137 x 69 x 10.4 mm) |
3.98" x 1.81" x 0.83" (101 x 46 x 21.1 mm) |
4.45" x 2.32" x 0.46" (113 x 59 x 11.7 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | (proprietary) | Windows Mobile Standard |
| Network Bands |
GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 13 WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | LTE (Cat 4) | GPRS | HSDPA 1.8 |
| Features | ||||
| Flashlight | - | Yes | - | - |
| GPS / Location | - | n/a | Yes | n/a |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | - | n/a |
| Hearing Aid Compatible | - |
Yes M4, T3 (mostly tele-coil compatible) |
- | - |
| Multiple Languages | Yes | n/a | Yes | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Ringer Profiles | Yes | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | - | Yes |
| USB | Yes |
Yes Micro-USB |
- | Yes |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
- | - |
| Contacts | ||||
| Picture ID | Yes | n/a | - | n/a |
| Ringer ID | Yes | n/a | - | n/a |
| Voice Dialing | Yes | n/a | Yes | n/a |
| Customization | ||||
| Custom Graphics | Yes | n/a | Yes | n/a |
| Custom Ringtones | Yes | n/a | Yes | n/a |
| Real-Music Ringers | Yes | n/a | - | n/a |
| Data & Network | ||||
| Data Tethering | Yes | n/a | Yes | n/a |
| WAP / Web Browser | Yes | n/a | Yes | n/a |
| Input | ||||
| Predictive Text Entry | Yes | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes |
| Touch Screen | - |
Yes Capacitive |
- | - |
| Memory | ||||
| Memory Card Slot | Yes | Yes | - | Yes |
| Messaging | ||||
| Email Client | Yes | n/a | Yes | n/a |
| EMS / Picture Messaging | - | n/a | Yes | n/a |
| Instant Messaging | - | n/a | - | n/a |
| MMS | Yes | n/a | Yes | n/a |
| Text Messaging Templates | Yes | n/a | - | n/a |
| Music | ||||
| FM Radio | Yes | - | - | - |
| Headphone Jack (3.5mm) | - | Yes | - | - |
| Music Player | Yes | n/a | - | n/a |
| Productivity | ||||
| Alarm | Yes | n/a | - | n/a |
| Calculator | Yes | n/a | - | n/a |
| Calendar | Yes | n/a | Yes | n/a |
| To-Do List | Yes | n/a | - | n/a |
| Voice Memo | Yes | n/a | - | n/a |
| Software | ||||
| Games | Yes | n/a | Yes | n/a |
| Java (J2ME) | Yes | n/a | Yes | n/a |
| Voice | ||||
| HD Voice | - | Yes | - | - |
| Push-To-Talk | Yes * | - | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Sony Ericsson Z550a | ZTE Blade Vantage 2 | Siemens M55 | Samsung BlackJack SGH-i607 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Sony Ericsson Z550a | ZTE Blade Vantage 2 | Siemens M55 | Samsung BlackJack SGH-i607 |
