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| Phone | Sony Ericsson Z550a | Samsung SGH-A727 | HTC EVO 4G | LG VX-8500 Chocolate |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
1.9" diag. 4 : 3 |
? |
4.3" diag. 5 : 3 |
? |
| Display Resolution & Type |
176 x 220 pixels (~148 ppi) LCD (TFT/TFD) |
220 x 176 pixels LCD (TFT/TFD) |
480 x 800 pixels (~217 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | ? |
| Battery | ? | ? | 1,500 mAh | 800 mAh |
| Processor | ? | ? | 1 GHz Qualcomm Snapdragon S1 QSD8650 | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 1 megapixel | 1 megapixel | 8 megapixel | 1 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | QCIF (176 x 144) | 720p HD | QCIF (176 x 144) |
| Front Camera | - | - | Yes | - |
| Weight |
3.26 oz (92g) |
2.82 oz (80g) |
6 oz (170g) |
3.53 oz (100g) |
| Dimensions |
3.43" x 1.77" x 0.79" (87 x 45 x 20.1 mm) |
4.51" x 2.01" x 0.35" (115 x 51 x 8.9 mm) |
4.8" x 2.6" x 0.5" (122 x 66 x 12.7 mm) |
3.8" x 1.88" x 0.69" (97 x 48 x 17.5 mm) |
| Form Factor | Clamshell | Slab | Slab | Slide |
| Platform / OS | (proprietary) | (proprietary) | Android | (proprietary) |
| Network Bands |
GSM: 850, 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
4G WiMAX: 41 CDMA: 850, 1900 |
CDMA: 850, 1900 |
| Data Technology | GPRS | HSDPA 1.8 | WiMAX | EVDO r0 |
| Features | ||||
| GPS / Location | - | - | n/a | Yes |
| Accessibility | ||||
| Hearing Aid Compatible | - | - | Yes |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Ringer Profiles | Yes | Yes | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Mobile Hotspot | - | - | n/a | - |
| USB | Yes | Yes | Yes | - |
| Wi-Fi | - | - |
Yes 802.11 b,g |
- |
| Contacts | ||||
| Picture ID | Yes | Yes | n/a | Yes |
| Ringer ID | Yes | Yes | n/a | Yes |
| Voice Dialing | Yes | - | n/a | Yes |
| Customization | ||||
| Custom Graphics | Yes | Yes | n/a | Yes |
| Custom Ringtones | Yes | Yes | n/a | Yes |
| Real-Music Ringers | Yes | Yes | n/a | Yes |
| Data & Network | ||||
| Data Tethering | Yes | Yes | n/a | Yes |
| External Antenna Jack | - | - | n/a | Yes |
| WAP / Web Browser | Yes | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | Yes | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | Yes | Yes | n/a | - |
| Instant Messaging | - | Yes | n/a | - |
| MMS | Yes | Yes | n/a | Yes |
| Text Messaging Templates | Yes | Yes | n/a | Yes |
| Music | ||||
| FM Radio | Yes | - | Yes | - |
| Headphone Jack (3.5mm) | - | - | Yes | - |
| Music Player | Yes | Yes | n/a | Yes |
| Photo & Video | ||||
| TV Output | - | - | Yes | - |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | Yes |
| Calculator | Yes | Yes | n/a | Yes |
| Calendar | Yes | Yes | n/a | Yes |
| To-Do List | Yes | Yes | n/a | - |
| Voice Memo | Yes | Yes | n/a | Yes |
| Software | ||||
| BREW | - | - | n/a | Yes |
| Games | Yes | Yes | n/a | Yes |
| Java (J2ME) | Yes | Yes | n/a | - |
| Voice | ||||
| Push-To-Talk | Yes * | - | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes * |
| * Some versions only | ||||
| Sony Ericsson Z550a | Samsung SGH-A727 | HTC EVO 4G | LG VX-8500 Chocolate | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Sony Ericsson Z550a | Samsung SGH-A727 | HTC EVO 4G | LG VX-8500 Chocolate |
