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| Phone | Samsung SGH-X640 | Samsung Galaxy Z Fold3 | Motorola Sidekick Slide |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? |
7.6" diag. 4 : 3 |
? |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
1768 x 2208 pixels (~372 ppi) AMOLED |
320 x 240 pixels LCD (TFT/TFD) |
| Display Refresh | ? | 120 Hz | ? |
| Battery | 800 mAh | 4,400 mAh | ? |
| Processor | ? | Qualcomm Snapdragon 888 | 225 MHz TI OMAP 850 |
| RAM | ? | 12 GB | ? |
| Storage | ? raw hardware | 256 GB * | ? raw hardware |
| Main Camera | Yes | 12 megapixel | 1 megapixel |
| Wide Camera | - | 12 megapixel | - |
| Tele Camera | - | 12 megapixel | - |
| Video Capture | - | 4K UHD | - |
| Front Camera | - | 10 megapixel | - |
| Weight |
3 oz (85g) |
9.56 oz (271g) |
5.3 oz (150g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
6.23" x 2.64" x 0.63" (158 x 67 x 16 mm) |
4.65" x 2.44" x 0.69" (118 x 62 x 17.5 mm) |
| Form Factor | Clamshell | Foldable | Slide |
| Platform / OS | (proprietary) | Android | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
5G: 2, 5, 12, 25, 30, 41, 66, 71, 77-C, 260, 261 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71 WCDMA: 1, 2, 3, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | NR (5G) | EDGE |
| Features | |||
| Barometer | - | Yes | - |
| Fingerprint Reader | - |
Yes stand-alone |
- |
| Flashlight | - | Yes | - |
| Water-Resistant | - |
Yes IPX8 (SCUBA) |
- |
| Accessibility | |||
| Adjustable Text Size | - | n/a | Yes |
| Hearing Aid Compatible | - |
Yes M3, T3 (mostly tele-coil compatible) |
- |
| Multiple Languages | Yes | n/a | - |
| TTY/TDD (Digital) | - | Yes | - |
| Alerts | |||
| Extra Display | - | Yes | - |
| Ringer Profiles | - | - | Yes |
| Connectivity | |||
| Bluetooth | - | Yes | Yes |
| NFC | - | Yes | - |
| USB | - |
Yes USB Type C |
Yes |
| UWB | - | Yes | - |
| Wi-Fi | - |
Yes 6 (802.11 a,ac,ax,b,g,n) |
- |
| Contacts | |||
| Picture ID | Yes | n/a | Yes |
| Ringer ID | Yes | n/a | Yes |
| Customization | |||
| Custom Graphics | Yes | n/a | Yes |
| Custom Ringtones | Yes | n/a | Yes |
| Real-Music Ringers | - | n/a | Yes |
| Data & Network | |||
| Dual-SIM | - | Yes | - |
| WAP / Web Browser | Yes | n/a | Yes |
| Input | |||
| Predictive Text Entry | Yes | n/a | - |
| Side Keys | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes |
| Touch Screen | - |
Yes Capacitive |
- |
| Memory | |||
| Memory Card Slot | - | - | 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 | - |
| Music | |||
| Music Player | - | n/a | Yes |
| Stereo Speakers | - | Yes | - |
| Photo & Video | |||
| TV Output | - | Yes | - |
| Power | |||
| Fast Charging | - | Yes | - |
| Wireless Charging | - | Yes | - |
| Productivity | |||
| Alarm | Yes | n/a | Yes |
| Calculator | Yes | n/a | - |
| Calendar | Yes | n/a | Yes |
| To-Do List | Yes | n/a | Yes |
| Voice Memo | Yes | n/a | - |
| Software | |||
| Games | Yes | n/a | Yes |
| Java (J2ME) | Yes | n/a | Yes |
| Voice | |||
| HD Voice | - | Yes | - |
| Headset Jack (2.5 mm) | Yes | n/a | Yes |
| Speaker Phone | Yes | Yes | Yes |
| Samsung SGH-X640 | Samsung Galaxy Z Fold3 | Motorola Sidekick Slide | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Samsung Galaxy Z Fold3 | Motorola Sidekick Slide |
