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|  |  |  | |
| Phone | Motorola RAZR V3m | Nokia N81 | Samsung Heat | 
| Current U.S. Carriers | (none) | (none) | (none) | 
| Global Availability | Released | Released | Released | 
| Specifications | |||
|---|---|---|---|
| Display Size | ? | 2.4" diag. 4 : 3 | ? | 
| Display Resolution & Type | 176 x 220 pixels LCD (TFT/TFD) | 240 x 320 pixels (~167 ppi) LCD (TFT/TFD) | 240 x 320 pixels LCD (TFT/TFD) | 
| Display Refresh | ? | ? | ? | 
| Battery | 780 mAh | 1,050 mAh | 800 mAh | 
| Processor | ? | 369 MHz ARM 11 | ? | 
| RAM | ? | ? | ? | 
| Storage | ? raw hardware | 8 GB * | ? raw hardware | 
| Main Camera | 1 megapixel | 2 megapixel | 1 megapixel | 
| Wide Camera | - | - | - | 
| Tele Camera | - | - | - | 
| Video Capture | ? | VGA (640 x 480) | ? | 
| Front Camera | - | - | - | 
| Weight | 3.49 oz (99g) | 4.94 oz (140g) | 3.17 oz (90g) | 
| Dimensions | 3.9" x 2.1" x 0.57" (99 x 53 x 14.5 mm) | 4.02" x 1.97" x 0.7" (102 x 50 x 17.8 mm) | 3.6" x 1.8" x 0.6" (91 x 46 x 15.2 mm) | 
| Form Factor | Clamshell | Slide | Slide | 
| Platform / OS | (proprietary) | S60 (Symbian) | (proprietary) | 
| Network Bands | CDMA: 850, 1900 | WCDMA: 1 GSM: 850, 900, 1800, 1900 | CDMA: 850, 1900 | 
| Data Technology | EVDO r0 | EDGE | EVDO r0 | 
| Features | |||
| GPS / Location | Yes | n/a | Yes | 
| Accessibility | |||
| Adjustable Text Size | - | n/a | Yes | 
| Hearing Aid Compatible | Yes | - | Yes | 
| Multiple Languages | Yes | n/a | Yes | 
| TTY/TDD (Digital) | Yes | - | Yes | 
| Alerts | |||
| Extra Display | Yes | - | - | 
| Ringer Profiles | - | Yes | - | 
| Connectivity | |||
| Bluetooth | Yes Classic Audio | Yes Classic Audio | Yes Classic Audio | 
| USB | Yes Mini-USB | Yes Micro-USB | Yes | 
| Wi-Fi | - | Yes 802.11 b,g | - | 
| Contacts | |||
| Picture ID | Yes | n/a | Yes | 
| Ringer ID | Yes | n/a | Yes | 
| Voice Dialing | Yes | n/a | - | 
| Customization | |||
| Custom Graphics | Yes | n/a | Yes | 
| Custom Ringtones | Yes | n/a | Yes | 
| Real-Music Ringers | Yes | n/a | Yes | 
| Data & Network | |||
| Data Tethering | Yes | n/a | - | 
| WAP / Web Browser | Yes | n/a | Yes | 
| Input | |||
| Predictive Text Entry | Yes | n/a | Yes | 
| Side Keys | Yes | Yes | Yes | 
| Memory | |||
| Memory Card Slot | Yes | Yes * | - | 
| Messaging | |||
| Email Client | - | n/a | - | 
| EMS / Picture Messaging | Yes | n/a | - | 
| Instant Messaging | Yes * | n/a | - | 
| MMS | Yes | n/a | Yes | 
| Text Messaging Templates | Yes * | n/a | Yes | 
| Music | |||
| FM Radio | - | Yes | - | 
| Headphone Jack (3.5mm) | - | Yes | - | 
| Music Player | Yes | n/a | Yes | 
| Stereo Speakers | - | Yes | - | 
| Photo & Video | |||
| Video Calling | - | n/a | - | 
| Productivity | |||
| Alarm | Yes | n/a | Yes | 
| Calculator | Yes | n/a | Yes | 
| Calendar | Yes | n/a | Yes | 
| To-Do List | - | n/a | Yes | 
| Voice Memo | Yes | n/a | Yes | 
| Software | |||
| BREW | Yes | n/a | - | 
| Games | Yes | n/a | Yes | 
| Java (J2ME) | - | n/a | - | 
| Voice | |||
| Push-To-Talk | - | Yes * | - | 
| Speaker Phone | Yes | Yes | Yes | 
| * Some versions only | |||
| Motorola RAZR V3m | Nokia N81 | Samsung Heat | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
|  |  |  | |
| Phone | Motorola RAZR V3m | Nokia N81 | Samsung Heat | 
 







