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| Phone | Samsung SGH-X640 | TCL 40 XL / Jitterbug Smart 4 | Samsung Zeal / Alias 2 SCH-U750 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? |
6.8" diag. 20 : 9 |
2.6" diag. 4 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
720 x 1600 pixels (~260 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~154 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 90 Hz | ? |
| Battery | 800 mAh | 5,000 mAh | 880 mAh |
| Processor | ? | 2.3 GHz MediaTek Helio G37 | ? |
| RAM | ? | 4 GB | ? |
| Storage | ? raw hardware | 128 GB | ? raw hardware |
| Main Camera | Yes | 50 megapixel | 2 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | 1080p HD | QCIF (176 x 144) |
| Front Camera | - | 8 megapixel | - |
| Weight |
3 oz (85g) |
6.88 oz (195g) |
4.34 oz (123g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
6.61" x 3.01" x 0.35" (168 x 76 x 8.8 mm) |
4.01" x 2.04" x 0.67" (102 x 52 x 17 mm) |
| Form Factor | Clamshell | Slab | Clamshell |
| Platform / OS | (proprietary) | Android | (proprietary) |
| Network Bands |
GSM: 900, 1800, 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 | LTE (Cat 6) | EVDO r0 |
| Features | |||
| Barometer | - | Yes | - |
| Fingerprint Reader | - | Yes | - |
| Flashlight | - | Yes | - |
| GPS / Location | - | n/a | Yes |
| Accessibility | |||
| Adjustable Text Size | - | n/a | Yes |
| Hearing Aid Compatible | - |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4 (very compatible) |
| Multiple Languages | Yes | n/a | Yes |
| TTY/TDD (Digital) | - | Yes | Yes |
| Alerts | |||
| Extra Display | - | - | Yes |
| Connectivity | |||
| Bluetooth | - | Yes | Yes |
| USB | - |
Yes USB Type C |
Yes |
| Wi-Fi | - |
Yes 5 (802.11 a,ac,b,g,n) |
- |
| Contacts | |||
| Picture ID | Yes | n/a | Yes |
| Ringer ID | Yes | n/a | Yes |
| Voice Dialing | - | n/a | Yes |
| Customization | |||
| Custom Graphics | Yes | n/a | Yes |
| Custom Ringtones | Yes | n/a | Yes |
| Real-Music Ringers | - | n/a | Yes |
| Data & Network | |||
| Data Tethering | - | n/a | Yes |
| WAP / Web Browser | Yes | n/a | Yes |
| Input | |||
| Predictive Text Entry | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes |
| Touch Screen | - |
Yes Capacitive |
- |
| Memory | |||
| Memory Card Slot | - | Yes | Yes |
| Messaging | |||
| Email Client | - | n/a | Yes |
| EMS / Picture Messaging | Yes | n/a | - |
| Instant Messaging | - | n/a | Yes |
| MMS | Yes | n/a | Yes |
| Text Messaging Templates | Yes | n/a | Yes |
| Music | |||
| Headphone Jack (3.5mm) | - | Yes | - |
| Music Player | - | n/a | Yes |
| Stereo Speakers | - | Yes | - |
| Power | |||
| Fast Charging | - | Yes | - |
| Productivity | |||
| Alarm | Yes | n/a | Yes |
| Calculator | Yes | n/a | Yes |
| Calendar | Yes | n/a | Yes |
| To-Do List | Yes | n/a | - |
| Voice Memo | Yes | n/a | Yes |
| Software | |||
| BREW | - | n/a | Yes |
| Games | Yes | n/a | Yes |
| Java (J2ME) | Yes | n/a | - |
| Voice | |||
| HD Voice | - | Yes | - |
| Headset Jack (2.5 mm) | Yes | n/a | Yes |
| Speaker Phone | Yes | Yes | Yes |
| Samsung SGH-X640 | TCL 40 XL / Jitterbug Smart 4 | Samsung Zeal / Alias 2 SCH-U750 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | TCL 40 XL / Jitterbug Smart 4 | Samsung Zeal / Alias 2 SCH-U750 |
