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| Phone | Samsung Knack U310 | Kyocera DuraXV Extreme / Extreme+ | ZTE Blade Max 3 / Max Blue |
| Current U.S. Carriers | (none) | Verizon | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
2.2" diag. 4 : 3 |
2.6" diag. 4 : 3 |
6" diag. 16 : 9 |
| Display Resolution & Type |
176 x 220 pixels (~128 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~154 ppi) LCD (TFT/TFD) |
1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz |
| Battery | 1,000 mAh | 1,770 mAh | 4,000 mAh |
| Processor | ? | 2 GHz MediaTek Helio A22 (6761) | 2 GHz Qualcomm Snapdragon 625 (MSM8953) |
| RAM | ? | 2 GB | 2 GB |
| Storage | ? raw hardware | 16 GB | 16 GB |
| Main Camera | - | 5 megapixel | 13 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | 720p HD | 4K UHD |
| Front Camera | - | - | 5 megapixel |
| Weight |
3.63 oz (103g) |
6.8 oz (193g) |
6.34 oz (180g) |
| Dimensions |
3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm) |
4.36" x 2.22" x 1.07" (111 x 56 x 27.2 mm) |
6.49" x 3.3" x 0.35" (165 x 84 x 8.9 mm) |
| Form Factor | Clamshell | Clamshell | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android |
| Network Bands |
CDMA: 850, 1900 |
4G LTE: 2, 4, 5, 12, 13 WCDMA: 1, 2, 5 |
4G LTE: 2, 4, 5, 12, 13, 25 WCDMA: 2, 4, 5 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
| Data Technology | - | LTE (Cat 4) | LTE (Cat 4) |
| Features | |||
| Barometer | - | Yes * | - |
| Fingerprint Reader | - | - |
Yes stand-alone |
| Flashlight | - | Yes | Yes |
| GPS / Location | Yes | Yes | n/a |
| Ruggedized | - | Yes | - |
| Water-Resistant | - |
Yes IPX8 (SCUBA) |
- |
| Accessibility | |||
| Adjustable Text Size | Yes | Yes | n/a |
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes |
| Alerts | |||
| Extra Display | Yes | Yes | - |
| Connectivity | |||
| Bluetooth | - | Yes | Yes |
| Mobile Hotspot | - | Yes | n/a |
| USB | - |
Yes USB Type C |
Yes USB Type C |
| Wi-Fi | - |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 ac,b,g,n) |
| Contacts | |||
| Picture ID | - | Yes | n/a |
| Ringer ID | - | Yes | n/a |
| Voice Dialing | Yes | Yes | n/a |
| Customization | |||
| Custom Graphics | - | Yes | n/a |
| Custom Ringtones | - | Yes | n/a |
| Real-Music Ringers | - | Yes | n/a |
| Data & Network | |||
| Data Tethering | - | Yes | n/a |
| WAP / Web Browser | - | Yes | n/a |
| Input | |||
| Predictive Text Entry | Yes | Yes | n/a |
| Side Keys | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | - | Yes | Yes |
| Messaging | |||
| Email Client | - | Yes | n/a |
| EMS / Picture Messaging | Yes | - | n/a |
| MMS | - | Yes | n/a |
| Text Messaging Templates | - | Yes | n/a |
| Music | |||
| FM Radio | - | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | Yes |
| Music Player | - | Yes | n/a |
| Power | |||
| Fast Charging | - | - | Yes |
| Productivity | |||
| Alarm | Yes | Yes | n/a |
| Calculator | Yes | Yes | n/a |
| Calendar | Yes | Yes | n/a |
| Voice Memo | - | Yes | n/a |
| Voice | |||
| HD Voice | - | Yes | - |
| Headset Jack (2.5 mm) | Yes | - | n/a |
| Push-To-Talk | - | Yes | - |
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| Samsung Knack U310 | Kyocera DuraXV Extreme / Extreme+ | ZTE Blade Max 3 / Max Blue | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Knack U310 | Kyocera DuraXV Extreme / Extreme+ | ZTE Blade Max 3 / Max Blue |
