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| Phone | Samsung SGH-E640 | Samsung Galaxy Z Fold4 | Samsung Acclaim SCH-R880 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? |
7.6" diag. 4 : 3 |
3.2" diag. 5 : 3 |
| Display Resolution & Type |
176 x 220 pixels LCD (TFT/TFD) |
1812 x 2176 pixels (~373 ppi) AMOLED |
320 x 480 pixels (~180 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 120 Hz | 60 Hz |
| Battery | 800 mAh | 4,400 mAh | 1,500 mAh |
| Processor | ? | 3.2 GHz Snapdragon 8+ Gen 1 | 800 MHz ARM-6 |
| RAM | ? | 12 GB | ? |
| Storage | ? raw hardware | 256 GB * | ? raw hardware |
| Main Camera | 1 megapixel | 50 megapixel | 3 megapixel |
| Wide Camera | - | 12 megapixel | - |
| Tele Camera | - | 10 megapixel | - |
| Video Capture | QCIF (176 x 144) | 4K UHD | CIF (352 x 288) |
| Front Camera | - | 10 megapixel | - |
| Weight |
3.17 oz (90g) |
9.28 oz (263g) |
4.93 oz (140g) |
| Dimensions |
3.37" x 1.78" x 0.93" (86 x 45 x 23.6 mm) |
6.11" x 2.64" x 0.62" (155 x 67 x 15.8 mm) |
4.49" x 2.32" x 0.6" (114 x 59 x 15.2 mm) |
| Form Factor | Clamshell | Foldable | Slide |
| Platform / OS | (proprietary) | Android | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
5G: 2, 5, 7, 12, 25, 30, 38, 41, 48, 66, 71, 77-A, 77-C, 78, 258, 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, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | GPRS | NR (5G) | EVDO rA |
| Features | |||
| Barometer | - | Yes | - |
| Fingerprint Reader | - |
Yes stand-alone |
- |
| Flashlight | - | Yes | - |
| GPS / Location | - | n/a | n/a |
| Water-Resistant | - |
Yes IPX8 (SCUBA) |
- |
| Accessibility | |||
| Hearing Aid Compatible | - |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | Yes |
| Alerts | |||
| Extra Display | Yes | Yes | - |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| NFC | - | Yes | - |
| USB | Yes |
Yes USB Type C |
Yes Micro-USB |
| UWB | - | Yes | - |
| Wi-Fi | - |
Yes 6E (802.11 a,ac,ax,b,g,n) |
Yes |
| Contacts | |||
| Picture ID | Yes | n/a | n/a |
| Ringer ID | Yes | n/a | n/a |
| Voice Dialing | - | n/a | n/a |
| Customization | |||
| Custom Graphics | Yes | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a |
| Real-Music Ringers | Yes | n/a | n/a |
| Data & Network | |||
| Dual-SIM | - | Yes | - |
| WAP / Web Browser | Yes | n/a | n/a |
| Input | |||
| Predictive Text Entry | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes |
| Stylus | - | Yes | - |
| Text Keyboard, Hardware | - | - | Yes |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | - | - | Yes |
| Messaging | |||
| Email Client | Yes | n/a | n/a |
| EMS / Picture Messaging | Yes | n/a | n/a |
| Instant Messaging | - | n/a | n/a |
| MMS | Yes | n/a | n/a |
| Text Messaging Templates | Yes | n/a | n/a |
| Music | |||
| Headphone Jack (3.5mm) | - | - | Yes |
| Music Player | Yes | n/a | n/a |
| Photo & Video | |||
| TV Output | - | Yes | - |
| Power | |||
| Fast Charging | - | Yes | - |
| Wireless Charging | - | Yes | - |
| Productivity | |||
| Alarm | Yes | n/a | n/a |
| Calculator | Yes | n/a | n/a |
| Calendar | Yes | n/a | n/a |
| To-Do List | Yes | n/a | n/a |
| Voice Memo | Yes | n/a | n/a |
| Software | |||
| Games | Yes | n/a | n/a |
| Java (J2ME) | Yes | n/a | n/a |
| Voice | |||
| HD Voice | - | Yes | - |
| Speaker Phone | Yes | Yes | Yes |
| Samsung SGH-E640 | Samsung Galaxy Z Fold4 | Samsung Acclaim SCH-R880 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-E640 | Samsung Galaxy Z Fold4 | Samsung Acclaim SCH-R880 |
