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| Phone | Samsung SGH-X640 | Nokia 3711 | Nokia 2780 Flip / 2760 Flip / 139 Flip / HMD Barbie Phone |
| Current U.S. Carriers | (none) | (none) | Tracfone |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? |
2.2" diag. 4 : 3 |
2.8" diag. 4 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~143 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz |
| Battery | 800 mAh | 860 mAh | 1,450 mAh |
| Processor | ? | ? | Qualcomm 215 |
| RAM | ? | ? | 512 MB |
| Storage | ? raw hardware | ? raw hardware | 4 GB |
| Main Camera | Yes | 2 megapixel | 5 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | ? | WVGA / 480p |
| Front Camera | - | - | - |
| Weight |
3 oz (85g) |
3.31 oz (94g) |
4.63 oz (131g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.5" x 1.85" x 0.59" (89 x 47 x 15 mm) |
4.33" x 2.28" x 0.75" (110 x 58 x 19.1 mm) |
| Form Factor | Clamshell | Clamshell | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
WCDMA: 1, 4, 8 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 7, 12, 13, 25, 26, 41, 66, 71 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | WCDMA (UMTS) | LTE (Cat 4) |
| Features | |||
| GPS / Location | - | Yes | Yes |
| Accessibility | |||
| Adjustable Text Size | - | Yes | Yes |
| Hearing Aid Compatible | - | - |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | Yes | Yes |
| Alerts | |||
| Extra Display | - | Yes | Yes |
| Ringer Profiles | - | Yes | - |
| Connectivity | |||
| Bluetooth | - | Yes | Yes |
| Mobile Hotspot | - | - | Yes |
| USB | - |
Yes Micro-USB |
Yes USB Type C |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
| Contacts | |||
| Picture ID | Yes | Yes | Yes |
| Ringer ID | Yes | Yes | Yes |
| Voice Dialing | - | Yes | - |
| Customization | |||
| Custom Graphics | Yes | Yes | Yes |
| Custom Ringtones | Yes | Yes | Yes |
| Real-Music Ringers | - | Yes | Yes |
| Data & Network | |||
| Data Tethering | - | Yes | - |
| WAP / Web Browser | Yes | Yes | Yes |
| Input | |||
| Predictive Text Entry | Yes | Yes | Yes |
| Side Keys | Yes | Yes | Yes |
| Memory | |||
| Memory Card Slot | - | Yes | Yes * |
| Messaging | |||
| Email Client | - | Yes | Yes |
| EMS / Picture Messaging | Yes | - | - |
| Instant Messaging | - | Yes | - |
| MMS | Yes | Yes | Yes |
| Text Messaging Templates | Yes | - | - |
| Music | |||
| FM Radio | - | Yes | Yes * |
| Headphone Jack (3.5mm) | - | - | Yes |
| Music Player | - | Yes | Yes |
| Productivity | |||
| Alarm | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes |
| To-Do List | Yes | Yes | Yes |
| Voice Memo | Yes | Yes | Yes |
| Software | |||
| Games | Yes | Yes | Yes |
| Java (J2ME) | Yes | Yes | - |
| Voice | |||
| HD Voice | - | - | Yes |
| Headset Jack (2.5 mm) | Yes | Yes | - |
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| Samsung SGH-X640 | Nokia 3711 | Nokia 2780 Flip / 2760 Flip / 139 Flip / HMD Barbie Phone | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Nokia 3711 | Nokia 2780 Flip / 2760 Flip / 139 Flip / HMD Barbie Phone |
