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| Phone | Samsung SGH-X640 | AT&T Maestro 3 | Motorola Moto Z2 Force | Samsung Galaxy S6 (GSM) | Samsung Galaxy S10e |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
6.5" diag. 20 : 9 |
5.5" diag. 16 : 9 |
5.1" diag. 16 : 9 |
5.8" diag. 19 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
720 x 1600 pixels (~270 ppi) LCD (TFT/TFD) |
1440 x 2560 pixels (~534 ppi) AMOLED |
1440 x 2560 pixels (~576 ppi) AMOLED |
1080 x 2280 pixels (~435 ppi) AMOLED |
| Display Refresh | ? | 60 Hz | 60 Hz | 60 Hz | 60 Hz |
| Battery | 800 mAh | 3,900 mAh | 2,730 mAh | 2,550 mAh | 3,100 mAh |
| Processor | ? | 2 GHz MediaTek Helio A22 (MT6761) | 2.4 GHz Qualcomm Snapdragon 835 (MSM8998) | 2.1 GHz Samsung Exynos 7420 | 2.8 GHz Qualcomm Snapdragon 855 |
| RAM | ? | 3 GB | 4 GB | 3 GB | 6 GB * |
| Storage | ? raw hardware | 32 GB | 64 GB | 32 GB * | 128 GB * |
| Main Camera | Yes | 13 megapixel | 12 megapixel | 16 megapixel | 12 megapixel |
| Wide Camera | - | 5 megapixel | - | - | 16 megapixel |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | 1080p HD | 4K UHD | 4K UHD | 4K UHD |
| Front Camera | - | 5 megapixel | 5 megapixel | 5 megapixel | 10 megapixel |
| Weight |
3 oz (85g) |
6.24 oz (177g) |
5.04 oz (143g) |
4.87 oz (138g) |
5.29 oz (150g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
6.58" x 3.03" x 0.33" (167 x 77 x 8.4 mm) |
6.13" x 2.99" x 0.24" (156 x 76 x 6.1 mm) |
5.65" x 2.78" x 0.27" (143 x 71 x 6.8 mm) |
5.6" x 2.75" x 0.31" (142 x 70 x 7.9 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | Android | Android | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 14, 30 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 41, 66 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 14, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
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| Data Technology | GPRS | LTE (Cat 4) | LTE (Cat 16) | LTE (Cat 6) | LTE (Cat 20) |
| Features | |||||
| Barometer | - | Yes | Yes | - | Yes |
| Fingerprint Reader | - |
Yes stand-alone |
Yes stand-alone |
Yes |
Yes stand-alone |
| Flashlight | - | Yes | Yes | Yes | Yes |
| VR-ready | - | - | Yes | Yes | Yes |
| Water-Resistant | - | - | Yes | - |
Yes IPX8 (SCUBA) |
| Accessibility | |||||
| Hearing Aid Compatible | - |
Yes M4, T4 (very tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | n/a | n/a | n/a |
| TTY/TDD (Digital) | - | - | Yes | Yes | Yes |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | Yes |
| Infrared (IR) | - | - | - | Yes | - |
| MirrorLink | - | - | - | Yes | Yes |
| NFC | - | - | Yes | Yes | Yes |
| USB | - |
Yes USB Type C |
Yes USB Type C |
Yes Micro-USB |
Yes USB Type C |
| Wi-Fi | - |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 6 (802.11 a,ac,ax,b,g,n) |
| Contacts | |||||
| Picture ID | Yes | n/a | n/a | n/a | n/a |
| Ringer ID | Yes | 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 |
| Data & Network | |||||
| Dual-SIM | - | - | Yes * | - | Yes * |
| 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 |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | - | Yes |
| Messaging | |||||
| EMS / Picture Messaging | Yes | 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 |
| Headphone Jack (3.5mm) | - | Yes | - | Yes | Yes |
| Stereo Speakers | - | - | - | - | Yes |
| Photo & Video | |||||
| DLNA | - | - | - | Yes | - |
| Miracast | - | - | - | Yes | Yes |
| TV Output | - | - | - | Yes | Yes |
| Power | |||||
| Fast Charging | - | - | Yes | Yes | Yes |
| Wireless Charging | - | - | - | Yes | 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 | Yes | Yes |
| Headset Jack (2.5 mm) | Yes | n/a | n/a | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-X640 | AT&T Maestro 3 | Motorola Moto Z2 Force | Samsung Galaxy S6 (GSM) | Samsung Galaxy S10e | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | AT&T Maestro 3 | Motorola Moto Z2 Force | Samsung Galaxy S6 (GSM) | Samsung Galaxy S10e |
