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| Phone | Pantech Flex | Kyocera DuraXV Extreme / Extreme+ | ZTE Blade X1 5G | Samsung Knack U310 |
| Current U.S. Carriers | (none) | Verizon | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
4.3" diag. 16 : 9 |
2.6" diag. 4 : 3 |
6.5" diag. 19.5 : 9 |
2.2" diag. 4 : 3 |
| Display Resolution & Type |
540 x 960 pixels (~256 ppi) AMOLED |
240 x 320 pixels (~154 ppi) LCD (TFT/TFD) |
1080 x 2340 pixels (~396 ppi) LCD (TFT/TFD) |
176 x 220 pixels (~128 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 60 Hz | ? |
| Battery | 1,830 mAh | 1,770 mAh | 4,000 mAh | 1,000 mAh |
| Processor | 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960 | 2 GHz MediaTek Helio A22 (6761) | 2.4 GHz Qualcomm Snapdragon 765G | ? |
| RAM | 1 GB | 2 GB | 6 GB | ? |
| Storage | 8 GB | 16 GB | 128 GB | ? raw hardware |
| Main Camera | 8 megapixel | 5 megapixel | 48 megapixel | - |
| Wide Camera | - | - | 8 megapixel | - |
| Tele Camera | - | - | - | - |
| Video Capture | 1080p HD | 720p HD | 4K UHD | - |
| Front Camera | 2 megapixel | - | 16 megapixel | - |
| Weight |
4.66 oz (132g) |
6.8 oz (193g) |
6.7 oz (190g) |
3.63 oz (103g) |
| Dimensions |
5.11" x 2.63" x 0.31" (130 x 67 x 7.9 mm) |
4.36" x 2.22" x 1.07" (111 x 56 x 27.2 mm) |
6.46" x 2.99" x 0.36" (164 x 76 x 9.2 mm) |
3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm) |
| Form Factor | Slab | Clamshell | Slab | Clamshell |
| Platform / OS | Android | (proprietary) | Android | (proprietary) |
| Network Bands |
4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 13 WCDMA: 1, 2, 5 |
5G: 2, 5, 66 4G LTE: 2, 4, 5, 12, 13, 66 |
CDMA: 850, 1900 |
| Data Technology | LTE (Cat 3) | LTE (Cat 4) | NR (5G) | - |
| Features | ||||
| Barometer | - | Yes * | Yes | - |
| Fingerprint Reader | - | - |
Yes stand-alone |
- |
| Flashlight | - | Yes | Yes | - |
| GPS / Location | n/a | Yes | n/a | Yes |
| Ruggedized | - | Yes | - | - |
| Water-Resistant | - |
Yes IPX8 (SCUBA) |
- | - |
| Accessibility | ||||
| Adjustable Text Size | n/a | Yes | 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) |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | n/a | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | Yes | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | - |
| Mobile Hotspot | n/a | Yes | n/a | - |
| NFC | - | - | Yes | - |
| USB |
Yes Micro-USB |
Yes USB Type C |
Yes USB Type C |
- |
| Wi-Fi | Yes |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
- |
| Contacts | ||||
| Picture ID | n/a | Yes | n/a | - |
| Ringer ID | n/a | Yes | n/a | - |
| Voice Dialing | n/a | Yes | n/a | Yes |
| Customization | ||||
| Custom Graphics | n/a | Yes | n/a | - |
| Custom Ringtones | n/a | Yes | n/a | - |
| Real-Music Ringers | n/a | Yes | n/a | - |
| Data & Network | ||||
| Data Tethering | n/a | Yes | n/a | - |
| WAP / Web Browser | n/a | Yes | n/a | - |
| Input | ||||
| Predictive Text Entry | n/a | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | - |
| Messaging | ||||
| Email Client | n/a | Yes | n/a | - |
| EMS / Picture Messaging | n/a | - | n/a | Yes |
| Instant Messaging | n/a | - | n/a | - |
| MMS | n/a | Yes | n/a | - |
| Text Messaging Templates | n/a | Yes | n/a | - |
| Music | ||||
| FM Radio | - | Yes | - | - |
| Headphone Jack (3.5mm) | Yes | Yes | Yes | - |
| Music Player | n/a | Yes | n/a | - |
| Photo & Video | ||||
| DLNA | Yes | - | - | - |
| Power | ||||
| Fast Charging | - | - | Yes | - |
| Productivity | ||||
| Alarm | n/a | Yes | n/a | Yes |
| Calculator | n/a | Yes | n/a | Yes |
| Calendar | n/a | Yes | n/a | Yes |
| Voice Memo | n/a | Yes | n/a | - |
| Software | ||||
| Games | n/a | - | n/a | - |
| Voice | ||||
| HD Voice | - | Yes | Yes | - |
| Headset Jack (2.5 mm) | n/a | - | n/a | Yes |
| Push-To-Talk | - | Yes | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Pantech Flex | Kyocera DuraXV Extreme / Extreme+ | ZTE Blade X1 5G | Samsung Knack U310 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Pantech Flex | Kyocera DuraXV Extreme / Extreme+ | ZTE Blade X1 5G | Samsung Knack U310 |
