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| Phone | Samsung DoubleTime | Samsung SGH-X640 | Kyocera DuraForce Pro 3 | Kyocera Coast / Kona |
| Current U.S. Carriers | (none) | (none) | Verizon | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
3.2" diag. 5 : 3 |
? |
5.4" diag. 18 : 9 |
2.4" diag. 4 : 3 |
| Display Resolution & Type |
320 x 480 pixels (~180 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
1080 x 2160 pixels (~449 ppi) AMOLED |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 60 Hz | ? |
| Battery | 1,200 mAh | 800 mAh | 4,270 mAh | 870 mAh |
| Processor | 600 MHz Qualcomm | ? | 2.4 GHz Snapdragon 7 Gen 1 | 480 MHz Qualcomm QSC6155 |
| RAM | ? | ? | 6 GB | 128 MB |
| Storage | ? raw hardware | ? raw hardware | 128 GB | 256 MB |
| Main Camera | 3 megapixel | Yes | 16 megapixel | 2 megapixel |
| Wide Camera | - | - | 16 megapixel | - |
| Tele Camera | - | - | - | - |
| Video Capture | QVGA (320 x 240) | - | 4K UHD | - |
| Front Camera | - | - | 8 megapixel | - |
| Weight |
5.22 oz (148g) |
3 oz (85g) |
8.36 oz (237g) |
3.7 oz (105g) |
| Dimensions |
4.45" x 2.44" x 0.59" (113 x 62 x 15 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
6.06" x 2.95" x 0.57" (154 x 75 x 14.5 mm) |
3.94" x 2.05" x 0.68" (100 x 52 x 17.3 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Clamshell |
| Platform / OS | Android | (proprietary) | Android | (proprietary) |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
5G: 2, 5, 48, 66, 77-A, 77-C, 78, 260, 261 4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 46, 48, 66 WCDMA: 1, 2, 5, 8 |
CDMA: 800, 850, 1700, 1900 |
| Data Technology | HSPA 7.2 | GPRS | NR (5G) | 1xRTT |
| Features | ||||
| Barometer | - | - | Yes | - |
| Fingerprint Reader | - | - |
Yes stand-alone |
- |
| Flashlight | - | - | Yes | - |
| GPS / Location | n/a | - | n/a | Yes |
| Ruggedized | - | - | Yes | - |
| Water-Resistant | - | - |
Yes IPX8 (SCUBA) |
- |
| Accessibility | ||||
| Adjustable Text Size | n/a | - | n/a | Yes |
| Hearing Aid Compatible |
Yes M3, T3 (mostly tele-coil compatible) |
- |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | n/a | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | - | Yes | Yes |
| Alerts | ||||
| Extra Display | - | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | Yes |
| Mobile Hotspot | n/a | - | n/a | - |
| NFC | - | - | Yes | - |
| USB |
Yes Micro-USB |
- |
Yes USB Type C |
Yes Micro-USB |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- |
Yes 6E (802.11 a,ac,ax,b,g,n) |
- |
| Contacts | ||||
| Picture ID | n/a | Yes | n/a | Yes |
| Ringer ID | n/a | Yes | n/a | Yes |
| Voice Dialing | n/a | - | n/a | Yes |
| Customization | ||||
| Custom Graphics | n/a | Yes | n/a | Yes |
| Custom Ringtones | n/a | Yes | n/a | Yes |
| Real-Music Ringers | n/a | - | n/a | Yes |
| Data & Network | ||||
| Data Tethering | n/a | - | n/a | - |
| Dual-SIM | - | - | Yes | - |
| WAP / Web Browser | n/a | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | n/a | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | - | - | - |
| Touch Screen |
Yes Capacitive |
- |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | Yes | - | Yes | - |
| Messaging | ||||
| Email Client | n/a | - | n/a | - |
| EMS / Picture Messaging | n/a | Yes | n/a | - |
| Instant Messaging | n/a | - | n/a | - |
| MMS | n/a | Yes | n/a | Yes |
| Text Messaging Templates | n/a | Yes | n/a | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | - | - | Yes |
| Music Player | n/a | - | n/a | - |
| Stereo Speakers | - | - | Yes | - |
| Photo & Video | ||||
| Miracast | - | - | Yes | - |
| Power | ||||
| Fast Charging | - | - | Yes | - |
| Wireless Charging | - | - | Yes | - |
| Productivity | ||||
| Alarm | n/a | Yes | n/a | Yes |
| Calculator | n/a | Yes | n/a | Yes |
| Calendar | n/a | Yes | n/a | Yes |
| To-Do List | n/a | Yes | n/a | - |
| Voice Memo | n/a | Yes | n/a | Yes |
| Software | ||||
| Games | n/a | Yes | n/a | Yes |
| Java (J2ME) | n/a | Yes | n/a | Yes |
| Voice | ||||
| HD Voice | - | - | Yes | - |
| Headset Jack (2.5 mm) | n/a | Yes | n/a | - |
| Push-To-Talk | - | - | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Samsung DoubleTime | Samsung SGH-X640 | Kyocera DuraForce Pro 3 | Kyocera Coast / Kona | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung DoubleTime | Samsung SGH-X640 | Kyocera DuraForce Pro 3 | Kyocera Coast / Kona |
