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| Phone | Huawei W1 | Visible Midnight | Samsung SGH-X640 | Nuu F4L |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Not yet released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
4" diag. 5 : 3 |
6.5" diag. 20 : 9 |
? |
2.8" diag. 4 : 3 |
| Display Resolution & Type |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
720 x 1600 pixels (~269 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
240 x 320 pixels (~143 ppi) LCD (STN) |
| Display Refresh | ? | 60 Hz | ? | 60 Hz |
| Battery | 1,950 mAh | 4,000 mAh | 800 mAh | 1,350 mAh |
| Processor | 1.2 GHz Qualcomm Snapdragon 400 MSM8230 | MediaTek Helio P22 (MT6762) | ? | 1.1 GHz MediaTek MT6731 |
| RAM | 512 MB | 3 GB | ? | 512 MB |
| Storage | 4 GB | 32 GB | ? raw hardware | 4 GB |
| Main Camera | 5 megapixel | 13 megapixel | Yes | 2 megapixel |
| Wide Camera | - | 5 megapixel | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 720p HD | 1080p HD | - | 720p HD |
| Front Camera | Yes | 8 megapixel | - | Yes |
| Weight |
4.41 oz (125g) |
6.35 oz (180g) |
3 oz (85g) |
4.5 oz (128g) |
| Dimensions |
4.84" x 2.5" x 0.41" (123 x 64 x 10.4 mm) |
6.53" x 3" x 0.34" (166 x 76 x 8.6 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
4.31" x 2.27" x 0.83" (109 x 58 x 21 mm) |
| Form Factor | Slab | Slab | Clamshell | Clamshell |
| Platform / OS | Windows | Android | (proprietary) | (proprietary) |
| Network Bands |
WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 7, 12, 13, 66 |
GSM: 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 13, 66 WCDMA: 2, 4, 5 GSM: 850, 1900 |
| Data Technology | HSPA+ 21 | LTE (Cat 4) | GPRS | LTE (Cat 4) |
| Features | ||||
| Fingerprint Reader | - |
Yes stand-alone |
- | - |
| Flashlight | - | Yes | - | Yes |
| GPS / Location | n/a | n/a | - | Yes |
| Accessibility | ||||
| Adjustable Text Size | n/a | n/a | - | Yes |
| Hearing Aid Compatible |
Yes M3 (mostly compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
- |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | n/a | n/a | Yes | Yes |
| TTY/TDD (Digital) | - | - | - | Yes |
| Alerts | ||||
| Extra Display | - | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | - | Yes |
| USB |
Yes Micro-USB |
Yes USB Type C |
- |
Yes Micro-USB |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
- |
Yes 4 (802.11 b,g,n) |
| Contacts | ||||
| Picture ID | n/a | n/a | Yes | Yes |
| Ringer ID | n/a | n/a | Yes | Yes |
| Voice Dialing | n/a | n/a | - | - |
| Customization | ||||
| Custom Graphics | n/a | n/a | Yes | Yes |
| Custom Ringtones | n/a | n/a | Yes | - |
| Real-Music Ringers | n/a | n/a | - | - |
| Data & Network | ||||
| WAP / Web Browser | n/a | n/a | Yes | Yes |
| Input | ||||
| Predictive Text Entry | n/a | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
Yes Capacitive |
- | - |
| Memory | ||||
| Memory Card Slot | Yes | Yes | - | Yes |
| Messaging | ||||
| Email Client | n/a | n/a | - | Yes |
| EMS / Picture Messaging | n/a | n/a | Yes | - |
| Instant Messaging | n/a | n/a | - | Yes |
| MMS | n/a | n/a | Yes | Yes |
| Text Messaging Templates | n/a | n/a | Yes | Yes |
| Music | ||||
| FM Radio | - | - | - | Yes |
| Headphone Jack (3.5mm) | Yes | Yes | - | Yes |
| Music Player | n/a | n/a | - | Yes |
| Power | ||||
| Wireless Charging | - | Yes | - | - |
| Productivity | ||||
| Alarm | n/a | n/a | Yes | Yes |
| Calculator | n/a | n/a | Yes | Yes |
| Calendar | n/a | n/a | Yes | Yes |
| To-Do List | n/a | n/a | Yes | - |
| Voice Memo | n/a | n/a | Yes | Yes |
| Software | ||||
| Games | n/a | n/a | Yes | - |
| Java (J2ME) | n/a | n/a | Yes | - |
| Voice | ||||
| HD Voice | - | Yes | - | Yes |
| Headset Jack (2.5 mm) | n/a | n/a | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Huawei W1 | Visible Midnight | Samsung SGH-X640 | Nuu F4L | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Huawei W1 | Visible Midnight | Samsung SGH-X640 | Nuu F4L |
