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| Phone | Siemens M55 | Motorola T720 / T721 (GSM) | Sanyo Zio by Kyocera | Motorola RAZR V3m |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? |
3.5" diag. 5 : 3 |
? |
| Display Resolution & Type |
101 x 80 pixels LCD (Color) |
120 x 160 pixels LCD (STN) |
480 x 800 pixels (~267 ppi) LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | ? |
| Battery | 700 mAh | ? | 1,130 mAh | 780 mAh |
| Processor | ? | ? | Qualcomm S1 MSM7627 | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | - | 3 megapixel | 1 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | - | WVGA / 480p | ? |
| Front Camera | - | - | - | - |
| Weight |
2.93 oz (83g) |
3.56 oz (101g) |
3.7 oz (105g) |
3.49 oz (99g) |
| Dimensions |
3.98" x 1.81" x 0.83" (101 x 46 x 21.1 mm) |
3.5" x 1.87" x 0.83" (89 x 47 x 21.1 mm) |
4.57" x 2.31" x 0.48" (116 x 59 x 12.2 mm) |
3.9" x 2.1" x 0.57" (99 x 53 x 14.5 mm) |
| Form Factor | Slab | Clamshell | Slab | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | Android | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
GSM: 850, 1900 |
CDMA: 850, 1700, 1900 |
CDMA: 850, 1900 |
| Data Technology | GPRS | GPRS | EVDO rA | EVDO r0 |
| Features | ||||
| GPS / Location | Yes | - | n/a | Yes |
| Accessibility | ||||
| Adjustable Text Size | - | - | n/a | - |
| Hearing Aid Compatible | - | - |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | - | Yes | Yes |
| Alerts | ||||
| Extra Display | - | Yes | - | Yes |
| Connectivity | ||||
| Bluetooth | - | - | Yes | Yes |
| USB | - | - | Yes |
Yes Mini-USB |
| Wi-Fi | - | - |
Yes 802.11 b,g |
- |
| Contacts | ||||
| Picture ID | - | - | n/a | Yes |
| Ringer ID | - | Yes | n/a | Yes |
| Voice Dialing | Yes | Yes | n/a | Yes |
| Customization | ||||
| Changeable Body Plates | - | Yes | - | - |
| Custom Graphics | Yes | Yes | n/a | Yes |
| Custom Ringtones | Yes | Yes | n/a | Yes |
| Real-Music Ringers | - | - | n/a | Yes |
| Data & Network | ||||
| Data Tethering | Yes | Yes | 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 |
| Messaging | ||||
| Email Client | Yes | Yes | n/a | - |
| EMS / Picture Messaging | Yes | Yes | n/a | Yes |
| Instant Messaging | - | - | n/a | Yes * |
| MMS | Yes | - | n/a | Yes |
| Text Messaging Templates | - | Yes | n/a | Yes * |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | Yes | - |
| Music Player | - | - | n/a | Yes |
| Productivity | ||||
| Alarm | - | Yes | n/a | Yes |
| Calculator | - | Yes | n/a | Yes |
| Calendar | Yes | Yes | n/a | Yes |
| Voice Memo | - | Yes | n/a | Yes |
| Software | ||||
| BREW | - | - | n/a | Yes |
| Games | Yes | Yes | n/a | Yes |
| Java (J2ME) | Yes | Yes | n/a | - |
| Voice | ||||
| Headset Jack (2.5 mm) | - | Yes | n/a | - |
| Speaker Phone | Yes | - | Yes | Yes |
| * Some versions only | ||||
| Siemens M55 | Motorola T720 / T721 (GSM) | Sanyo Zio by Kyocera | Motorola RAZR V3m | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Siemens M55 | Motorola T720 / T721 (GSM) | Sanyo Zio by Kyocera | Motorola RAZR V3m |
