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| Phone | Nuu F4L | Samsung SGH-E640 | Sony Ericsson K750 / W800 / D750 / W700 | Ericsson T39 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Not yet released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.8" diag. 4 : 3 |
? | ? | ? |
| Display Resolution & Type |
240 x 320 pixels (~143 ppi) LCD (STN) |
176 x 220 pixels LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
? LCD (Grayscale) |
| Display Refresh | 60 Hz | ? | ? | ? |
| Battery | 1,350 mAh | 800 mAh | 900 mAh | ? |
| Processor | 1.1 GHz MediaTek MT6731 | ? | ? | ? |
| RAM | 512 MB | ? | ? | ? |
| Storage | 4 GB | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 2 megapixel | 1 megapixel | 2 megapixel | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 720p HD | QCIF (176 x 144) | ? | - |
| Front Camera | Yes | - | - | - |
| Weight |
4.5 oz (128g) |
3.17 oz (90g) |
3.49 oz (99g) |
3.03 oz (86g) |
| Dimensions |
4.31" x 2.27" x 0.83" (109 x 58 x 21 mm) |
3.37" x 1.78" x 0.93" (86 x 45 x 23.6 mm) |
3.94" x 1.81" x 0.79" (100 x 46 x 20.1 mm) |
3.78" x 1.97" x 0.71" (96 x 50 x 18 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Flip |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
4G LTE: 2, 4, 5, 12, 13, 66 WCDMA: 2, 4, 5 GSM: 850, 1900 |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
| Data Technology | LTE (Cat 4) | GPRS | GPRS | GPRS |
| Features | ||||
| Flashlight | Yes | - | Yes | - |
| GPS / Location | Yes | - | - | - |
| Accessibility | ||||
| Adjustable Text Size | Yes | - | - | - |
| Hearing Aid Compatible | Yes | - | - | - |
| Multiple Languages | Yes | Yes | Yes | Yes |
| TTY/TDD (Digital) | Yes | - | Yes | - |
| Alerts | ||||
| Extra Display | Yes | Yes | - | - |
| Ringer Profiles | - | - | Yes | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Infrared (IR) | - | - | Yes | Yes |
| USB |
Yes Micro-USB |
Yes | Yes | - |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- | - | - |
| Contacts | ||||
| Picture ID | Yes | Yes | Yes | - |
| Ringer ID | Yes | Yes | Yes | - |
| Voice Dialing | - | - | Yes | Yes |
| Customization | ||||
| Custom Graphics | Yes | Yes | Yes | Yes |
| Custom Ringtones | - | Yes | Yes | Yes |
| Real-Music Ringers | - | Yes | - | - |
| Data & Network | ||||
| Data Tethering | - | - | Yes | Yes |
| WAP / Web Browser | Yes | Yes | Yes | Yes |
| Input | ||||
| Predictive Text Entry | Yes | Yes | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Memory | ||||
| Memory Card Slot | Yes | - | Yes | - |
| Messaging | ||||
| Email Client | Yes | Yes | Yes | - |
| EMS / Picture Messaging | - | Yes | Yes | - |
| Instant Messaging | Yes | - | - | - |
| MMS | Yes | Yes | Yes | - |
| Text Messaging Templates | Yes | Yes | Yes | Yes |
| Music | ||||
| FM Radio | Yes | - | Yes | - |
| Headphone Jack (3.5mm) | Yes | - | - | - |
| Music Player | Yes | Yes | Yes | - |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes | Yes |
| To-Do List | - | Yes | Yes | - |
| Voice Memo | Yes | Yes | Yes | Yes |
| Software | ||||
| Games | - | Yes | Yes | Yes |
| Java (J2ME) | - | Yes | Yes | - |
| Voice | ||||
| HD Voice | Yes | - | - | - |
| Speaker Phone | Yes | Yes | Yes | - |
| Nuu F4L | Samsung SGH-E640 | Sony Ericsson K750 / W800 / D750 / W700 | Ericsson T39 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nuu F4L | Samsung SGH-E640 | Sony Ericsson K750 / W800 / D750 / W700 | Ericsson T39 |
