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| Phone | Samsung SGH-X640 | BlackBerry 7750 | Coolpad Quattro 4G | TCL 40 XL / Jitterbug Smart 4 | Samsung Wafer R510 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | ? |
4" diag. 5 : 3 |
6.8" diag. 20 : 9 |
1.9" diag. 4 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
240 x 240 pixels LCD (Color) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
720 x 1600 pixels (~260 ppi) LCD (TFT/TFD) |
220 x 176 pixels (~148 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | 90 Hz | ? |
| Battery | 800 mAh | ? | 1,600 mAh | 5,000 mAh | 800 mAh |
| Processor | ? | ? | ? | 2.3 GHz MediaTek Helio G37 | ? |
| RAM | ? | ? | ? | 4 GB | ? |
| Storage | ? raw hardware | ? raw hardware | 512 MB | 128 GB | ? raw hardware |
| Main Camera | Yes | - | 3 megapixel | 50 megapixel | 1 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | - | VGA (640 x 480) | 1080p HD | ? |
| Front Camera | - | - | Yes | 8 megapixel | - |
| Weight |
3 oz (85g) |
5.01 oz (142g) |
3.31 oz (94g) |
6.88 oz (195g) |
2.47 oz (70g) |
| 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) |
4.96" x 2.6" x 0.51" (126 x 66 x 13 mm) |
6.61" x 3.01" x 0.35" (168 x 76 x 8.8 mm) |
4.45" x 1.97" x 0.33" (113 x 50 x 8.4 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab | Slab |
| Platform / OS | (proprietary) | BlackBerry OS | Android | Android | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
4G LTE: 2, 4 CDMA: 850, 1700, 1900 |
4G LTE: 2, 4, 5, 12, 13, 25, 26, 41, 66, 71 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | GPRS | 1xRTT | LTE (Cat 3) | LTE (Cat 6) | EVDO r0 |
| Features | |||||
| Barometer | - | - | - | Yes | - |
| Fingerprint Reader | - | - | - | Yes | - |
| Flashlight | - | - | - | Yes | - |
| GPS / Location | - | n/a | n/a | n/a | Yes |
| Accessibility | |||||
| Hearing Aid Compatible | - | - | Yes | Yes | Yes |
| Multiple Languages | Yes | n/a | n/a | n/a | Yes |
| TTY/TDD (Digital) | - | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Ringer Profiles | - | Yes | - | - | - |
| Connectivity | |||||
| Bluetooth | - | - | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | n/a | n/a | - |
| USB | - | Yes | Yes |
Yes USB Type C |
- |
| Wi-Fi | - | - | Yes |
Yes 5 (802.11 a,ac,b,g,n) |
- |
| Contacts | |||||
| Picture ID | Yes | n/a | n/a | n/a | Yes |
| Ringer ID | Yes | n/a | n/a | n/a | - |
| Voice Dialing | - | n/a | n/a | n/a | Yes |
| Customization | |||||
| Custom Graphics | Yes | n/a | n/a | n/a | Yes |
| Custom Ringtones | Yes | n/a | n/a | n/a | Yes |
| Real-Music Ringers | - | n/a | n/a | n/a | - |
| Data & Network | |||||
| Data Tethering | - | n/a | n/a | n/a | - |
| WAP / Web Browser | Yes | n/a | n/a | n/a | Yes |
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - | - |
| Touch Screen | - | - | Yes | Yes | - |
| Memory | |||||
| Memory Card Slot | - | - | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | n/a | n/a | n/a | - |
| EMS / Picture Messaging | Yes | n/a | n/a | n/a | - |
| Instant Messaging | - | n/a | n/a | n/a | - |
| MMS | Yes | n/a | n/a | n/a | Yes |
| Text Messaging Templates | Yes | n/a | n/a | n/a | - |
| Music | |||||
| Headphone Jack (3.5mm) | - | - | Yes | Yes | - |
| Music Player | - | n/a | n/a | n/a | Yes |
| Stereo Speakers | - | - | - | Yes | Yes |
| Power | |||||
| Fast Charging | - | - | - | Yes | - |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | n/a | Yes |
| Calculator | Yes | n/a | n/a | n/a | Yes |
| Calendar | Yes | n/a | n/a | n/a | Yes |
| To-Do List | Yes | n/a | n/a | n/a | - |
| Voice Memo | Yes | n/a | n/a | n/a | Yes |
| Software | |||||
| BREW | - | n/a | n/a | n/a | Yes |
| Games | Yes | n/a | n/a | n/a | Yes |
| Java (J2ME) | Yes | n/a | n/a | n/a | - |
| Voice | |||||
| HD Voice | - | - | - | Yes | - |
| Headset Jack (2.5 mm) | Yes | n/a | n/a | n/a | - |
| Speaker Phone | Yes | - | Yes | Yes | Yes |
| Samsung SGH-X640 | BlackBerry 7750 | Coolpad Quattro 4G | TCL 40 XL / Jitterbug Smart 4 | Samsung Wafer R510 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | BlackBerry 7750 | Coolpad Quattro 4G | TCL 40 XL / Jitterbug Smart 4 | Samsung Wafer R510 |
