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| Phone | Samsung Galaxy J7 (2017, GSM) / J7 Prime / Halo | Samsung SGH-X640 | Samsung Wafer R510 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
5.5" diag. 16 : 9 |
? |
1.9" diag. 4 : 3 |
| Display Resolution & Type |
720 x 1280 pixels (~267 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
220 x 176 pixels (~148 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | ? |
| Battery | 3,300 mAh | 800 mAh | 800 mAh |
| Processor | 1.6 GHz Samsung Exynos 7870 | ? | ? |
| RAM | 2 GB | ? | ? |
| Storage | 16 GB * | ? raw hardware | ? raw hardware |
| Main Camera | 8 megapixel | Yes | 1 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | 1080p HD | - | ? |
| Front Camera | Yes | - | - |
| Weight |
5.8 oz (164g) |
3 oz (85g) |
2.47 oz (70g) |
| Dimensions |
5.96" x 3.01" x 0.34" (151 x 76 x 8.6 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
4.45" x 1.97" x 0.33" (113 x 50 x 8.4 mm) |
| Form Factor | Slab | Clamshell | Slab |
| Platform / OS | Android | (proprietary) | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
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| Data Technology | LTE (Cat 6) | GPRS | EVDO r0 |
| Features | |||
| Flashlight | Yes | - | - |
| GPS / Location | n/a | - | Yes |
| Accessibility | |||
| Hearing Aid Compatible |
Yes M3, T3 (mostly tele-coil compatible) |
- |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | Yes | Yes |
| TTY/TDD (Digital) | Yes | - | Yes |
| Connectivity | |||
| Bluetooth | Yes | - | Yes |
| USB |
Yes Micro-USB |
- | - |
| Wi-Fi |
Yes 5 (802.11 a,ac,b,g,n) |
- | - |
| Contacts | |||
| Picture ID | n/a | Yes | Yes |
| Ringer ID | n/a | Yes | - |
| Voice Dialing | n/a | - | Yes |
| Customization | |||
| Custom Graphics | n/a | Yes | Yes |
| Custom Ringtones | n/a | Yes | Yes |
| Data & Network | |||
| WAP / Web Browser | n/a | Yes | Yes |
| Input | |||
| Predictive Text Entry | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- | - |
| Memory | |||
| Memory Card Slot | Yes | - | Yes |
| Messaging | |||
| EMS / Picture Messaging | n/a | Yes | - |
| MMS | n/a | Yes | Yes |
| Text Messaging Templates | n/a | Yes | - |
| Music | |||
| FM Radio | Yes | - | - |
| Headphone Jack (3.5mm) | Yes | - | - |
| Music Player | n/a | - | Yes |
| Stereo Speakers | - | - | Yes |
| Productivity | |||
| Alarm | n/a | Yes | Yes |
| Calculator | n/a | Yes | Yes |
| Calendar | n/a | Yes | Yes |
| To-Do List | n/a | Yes | - |
| Voice Memo | n/a | Yes | Yes |
| Software | |||
| BREW | n/a | - | Yes |
| Games | n/a | Yes | Yes |
| Java (J2ME) | n/a | Yes | - |
| Voice | |||
| HD Voice | Yes | - | - |
| Headset Jack (2.5 mm) | n/a | Yes | - |
| Speaker Phone | Yes | Yes | Yes |
| Samsung Galaxy J7 (2017, GSM) / J7 Prime / Halo | Samsung SGH-X640 | Samsung Wafer R510 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Galaxy J7 (2017, GSM) / J7 Prime / Halo | Samsung SGH-X640 | Samsung Wafer R510 |
