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| Phone | Samsung SGH-X640 | BlackBerry 7750 | Samsung Droid Charge | LG K8 (2018) / Zone 4 / Tribute Dynasty / Tribute Empire / K8s | Nokia 6650 fold |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | ? |
4.3" diag. 5 : 3 |
5" diag. 16 : 9 |
2.2" diag. 4 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
240 x 240 pixels LCD (Color) |
480 x 800 pixels (~217 ppi) AMOLED |
720 x 1280 pixels (~294 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | 60 Hz | ? |
| Battery | 800 mAh | ? | 1,500 mAh | 2,500 mAh | 1,500 mAh |
| Processor | ? | ? | 1 GHz Samsung Hummingbird | 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) | 369 MHz ARM 11 |
| RAM | ? | ? | ? | 2 GB | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | 16 GB | ? raw hardware |
| Main Camera | Yes | - | 8 megapixel | 8 megapixel | 2 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | - | 720p HD | 1080p HD | QVGA (320 x 240) |
| Front Camera | - | - | 1 megapixel | 5 megapixel | - |
| Weight |
3 oz (85g) |
5.01 oz (142g) |
5.06 oz (144g) |
4.94 oz (140g) |
3.95 oz (112g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
4.76" x 3.03" x 0.71" (121 x 77 x 18 mm) |
5.1" x 2.68" x 0.46" (130 x 68 x 11.7 mm) |
5.7" x 2.84" x 0.32" (145 x 72 x 8.1 mm) |
3.93" x 1.86" x 0.64" (100 x 47 x 16.2 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab | Clamshell |
| Platform / OS | (proprietary) | BlackBerry OS | Android | Android | S60 (Symbian) |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
4G LTE: 13 CDMA: 850, 1900 |
||
| Data Technology | GPRS | 1xRTT | LTE (Cat 3) | LTE (Cat 4) | HSDPA 3.6 |
| Features | |||||
| Flashlight | - | - | - | Yes | - |
| GPS / Location | - | n/a | n/a | n/a | n/a |
| Accessibility | |||||
| Hearing Aid Compatible | - | - |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | n/a | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | Yes | - |
| Alerts | |||||
| Extra Display | - | - | - | - | Yes |
| Ringer Profiles | - | Yes | - | - | Yes |
| Connectivity | |||||
| Bluetooth | - | - | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | n/a | n/a | n/a |
| USB | - | Yes |
Yes Micro-USB |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | |||||
| Picture ID | Yes | n/a | n/a | n/a | n/a |
| Ringer ID | Yes | n/a | n/a | n/a | n/a |
| Voice Dialing | - | n/a | n/a | n/a | n/a |
| Customization | |||||
| Custom Graphics | Yes | n/a | n/a | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a | n/a | n/a |
| Real-Music Ringers | - | n/a | n/a | n/a | n/a |
| Data & Network | |||||
| Data Tethering | - | n/a | n/a | n/a | n/a |
| WAP / Web Browser | Yes | n/a | n/a | n/a | n/a |
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - | - |
| Touch Screen | - | - |
Yes Capacitive |
Yes Capacitive |
- |
| Memory | |||||
| Memory Card Slot | - | - | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | n/a | n/a | n/a | n/a |
| EMS / Picture Messaging | Yes | n/a | n/a | n/a | n/a |
| Instant Messaging | - | n/a | n/a | n/a | n/a |
| MMS | Yes | n/a | n/a | n/a | n/a |
| Text Messaging Templates | Yes | n/a | n/a | n/a | n/a |
| Music | |||||
| Headphone Jack (3.5mm) | - | - | Yes | Yes | - |
| Music Player | - | n/a | n/a | n/a | n/a |
| Photo & Video | |||||
| DLNA | - | - | Yes | - | - |
| TV Output | - | - | Yes | - | - |
| Video Calling | - | n/a | n/a | n/a | n/a |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | n/a | n/a |
| Calculator | Yes | n/a | n/a | n/a | n/a |
| Calendar | Yes | n/a | n/a | n/a | n/a |
| To-Do List | Yes | n/a | n/a | n/a | n/a |
| Voice Memo | Yes | n/a | n/a | n/a | n/a |
| Software | |||||
| Games | Yes | n/a | n/a | n/a | n/a |
| Java (J2ME) | Yes | n/a | n/a | n/a | n/a |
| Voice | |||||
| HD Voice | - | - | - | Yes | - |
| Headset Jack (2.5 mm) | Yes | n/a | n/a | n/a | n/a |
| Speaker Phone | Yes | - | Yes | Yes | Yes |
| Samsung SGH-X640 | BlackBerry 7750 | Samsung Droid Charge | LG K8 (2018) / Zone 4 / Tribute Dynasty / Tribute Empire / K8s | Nokia 6650 fold | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | BlackBerry 7750 | Samsung Droid Charge | LG K8 (2018) / Zone 4 / Tribute Dynasty / Tribute Empire / K8s | Nokia 6650 fold |
