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| Phone | Motorola T720 / T721 (GSM) | Ericsson R520 | Samsung SGH-X820 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? | ? | ? |
| Display Resolution & Type |
120 x 160 pixels LCD (STN) |
? |
220 x 176 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? |
| Battery | ? | ? | 650 mAh |
| Processor | ? | ? | ? |
| RAM | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | - | 2 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | - | ? |
| Front Camera | - | - | - |
| Weight |
3.56 oz (101g) |
4.23 oz (120g) |
2.33 oz (66g) |
| Dimensions |
3.5" x 1.87" x 0.83" (89 x 47 x 21.1 mm) |
5.12" x 1.97" x 0.63" (130 x 50 x 16 mm) |
4.45" x 1.97" x 0.27" (113 x 50 x 6.9 mm) |
| Form Factor | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
GSM: 850, 1900 |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
| Data Technology | GPRS | GPRS | EDGE |
| Features | |||
| Accessibility | |||
| Multiple Languages | Yes | Yes | Yes |
| Alerts | |||
| Extra Display | Yes | - | - |
| Ringer Profiles | - | Yes | - |
| Connectivity | |||
| Bluetooth | - | Yes | Yes |
| Infrared (IR) | - | Yes | - |
| USB | - | - | Yes |
| Contacts | |||
| Picture ID | - | - | Yes |
| Ringer ID | Yes | - | Yes |
| Voice Dialing | Yes | Yes | - |
| Customization | |||
| Changeable Body Plates | Yes | - | - |
| Custom Graphics | Yes | - | Yes |
| Custom Ringtones | Yes | Yes | Yes |
| Real-Music Ringers | - | - | Yes |
| Data & Network | |||
| Data Tethering | Yes | Yes | - |
| External Antenna Jack | - | - | Yes |
| WAP / Web Browser | Yes | Yes | Yes |
| Input | |||
| Predictive Text Entry | Yes | Yes | Yes |
| Side Keys | Yes | Yes | Yes |
| Messaging | |||
| Email Client | Yes | - | Yes |
| EMS / Picture Messaging | Yes | - | Yes |
| MMS | - | - | Yes |
| Text Messaging Templates | Yes | Yes | Yes |
| Photo & Video | |||
| TV Output | - | - | Yes |
| Productivity | |||
| Alarm | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes |
| To-Do List | - | - | Yes |
| Voice Memo | Yes | Yes | Yes |
| Software | |||
| Games | Yes | Yes | Yes |
| Java (J2ME) | Yes | - | Yes |
| Voice | |||
| Headset Jack (2.5 mm) | Yes | - | - |
| Speaker Phone | - | Yes | Yes |
| Motorola T720 / T721 (GSM) | Ericsson R520 | Samsung SGH-X820 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Motorola T720 / T721 (GSM) | Ericsson R520 | Samsung SGH-X820 |
