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| Phone | Samsung SGH-X640 | ZTE Maven 3 / Overture 3 / Prelude+ | Samsung Galaxy J2 / J2 Pure / J2 Dash | LG G8 ThinQ | Samsung Captivate Glide |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
5" diag. 16 : 9 |
5" diag. 16 : 9 |
6.1" diag. 19.5 : 9 |
4" diag. 5 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
480 x 854 pixels (~196 ppi) LCD (TFT/TFD) |
540 x 960 pixels (~220 ppi) LCD (TFT/TFD) |
1440 x 3120 pixels (~563 ppi) AMOLED |
480 x 800 pixels (~233 ppi) AMOLED |
| Display Refresh | ? | 60 Hz | 60 Hz | 60 Hz | 60 Hz |
| Battery | 800 mAh | 2,070 mAh | 2,600 mAh | 3,500 mAh | 1,650 mAh |
| Processor | ? | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | 1.4 GHz Samsung Exynos 7570 | 2.8 GHz Qualcomm Snapdragon 855 | 1 GHz Nvidia Tegra 2 AP20H |
| RAM | ? | 2 GB * | 2 GB | 6 GB | 1 GB |
| Storage | ? raw hardware | 16 GB * | 16 GB | 128 GB | 8 GB |
| Main Camera | Yes | 5 megapixel | 8 megapixel | 12 megapixel | 8 megapixel |
| Wide Camera | - | - | - | 16 megapixel | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | 720p HD | 1080p HD | 4K UHD | 720p HD |
| Front Camera | - | 2 megapixel | 5 megapixel | 8 megapixel | 1 megapixel |
| Weight |
3 oz (85g) |
5.53 oz (157g) |
5.43 oz (154g) |
5.96 oz (169g) |
5.2 oz (147g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
5.73" x 2.85" x 0.39" (146 x 72 x 9.9 mm) |
5.65" x 2.84" x 0.35" (144 x 72 x 8.9 mm) |
5.98" x 2.83" x 0.33" (152 x 72 x 8.4 mm) |
4.88" x 2.55" x 0.51" (124 x 65 x 13 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab | Slide |
| Platform / OS | (proprietary) | Android | Android | Android | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 1900 |
4G LTE: 2, 4, 5, 7, 12, 13, 14, 17, 25, 26, 29, 30, 41, 48, 66, 71 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | GPRS | LTE (Cat 4) | LTE (Cat 4) | LTE (Cat 20) | HSPA+ 21 |
| Features | |||||
| Barometer | - | - | - | Yes | - |
| Fingerprint Reader | - | - | - |
Yes stand-alone |
- |
| Flashlight | - | Yes | Yes | Yes | - |
| GPS / Location | - | n/a | n/a | n/a | n/a |
| Water-Resistant | - | - | - |
Yes IPX8 (SCUBA) |
- |
| Accessibility | |||||
| Hearing Aid Compatible | - |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | n/a | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | Yes | Yes |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | Yes |
| MirrorLink | - | - | - | Yes | - |
| Mobile Hotspot | - | n/a | n/a | n/a | n/a |
| NFC | - | - | - | Yes | - |
| USB | - |
Yes Micro-USB |
Yes Micro-USB |
Yes USB Type C |
Yes Micro-USB |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
Yes |
| Contacts | |||||
| Picture ID | Yes | n/a | n/a | n/a | n/a |
| Ringer ID | Yes | n/a | n/a | n/a | n/a |
| Voice Dialing | - | n/a | n/a | n/a | n/a |
| Customization | |||||
| Custom Graphics | Yes | n/a | n/a | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a | n/a | n/a |
| Real-Music Ringers | - | n/a | n/a | n/a | n/a |
| Data & Network | |||||
| Data Tethering | - | n/a | n/a | n/a | n/a |
| WAP / Web Browser | Yes | n/a | n/a | n/a | n/a |
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | - | Yes |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | n/a | n/a | n/a | n/a |
| EMS / Picture Messaging | Yes | n/a | n/a | n/a | n/a |
| Instant Messaging | - | n/a | n/a | n/a | n/a |
| MMS | Yes | n/a | n/a | n/a | n/a |
| Text Messaging Templates | Yes | n/a | n/a | n/a | n/a |
| Music | |||||
| FM Radio | - | Yes | - | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | Yes | Yes | Yes |
| Music Player | - | n/a | n/a | n/a | n/a |
| Stereo Speakers | - | - | - | Yes | - |
| Photo & Video | |||||
| DLNA | - | - | - | Yes | Yes |
| Miracast | - | - | - | Yes | - |
| TV Output | - | - | - | - | Yes |
| Power | |||||
| Fast Charging | - | - | - | Yes | - |
| Wireless Charging | - | - | - | Yes | - |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | n/a | n/a |
| Calculator | Yes | n/a | n/a | n/a | n/a |
| Calendar | Yes | n/a | n/a | n/a | n/a |
| To-Do List | Yes | n/a | n/a | n/a | n/a |
| Voice Memo | Yes | n/a | n/a | n/a | n/a |
| Software | |||||
| Games | Yes | n/a | n/a | n/a | n/a |
| Java (J2ME) | Yes | n/a | n/a | n/a | n/a |
| Voice | |||||
| HD Voice | - | Yes | - | Yes | - |
| Headset Jack (2.5 mm) | Yes | n/a | n/a | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| Samsung SGH-X640 | ZTE Maven 3 / Overture 3 / Prelude+ | Samsung Galaxy J2 / J2 Pure / J2 Dash | LG G8 ThinQ | Samsung Captivate Glide | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | ZTE Maven 3 / Overture 3 / Prelude+ | Samsung Galaxy J2 / J2 Pure / J2 Dash | LG G8 ThinQ | Samsung Captivate Glide |
