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| Phone | LG CU400 / CU405 | Samsung SGH-X820 | Samsung SGH-E640 | Kyocera DuraForce Pro 3 |
| Current U.S. Carriers | (none) | (none) | (none) | Verizon |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? | ? |
5.4" diag. 18 : 9 |
| Display Resolution & Type |
176 x 220 pixels LCD (TFT/TFD) |
220 x 176 pixels LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
1080 x 2160 pixels (~449 ppi) AMOLED |
| Display Refresh | ? | ? | ? | 60 Hz |
| Battery | 1,100 mAh | 650 mAh | 800 mAh | 4,270 mAh |
| Processor | ? | ? | ? | 2.4 GHz Snapdragon 7 Gen 1 |
| RAM | ? | ? | ? | 6 GB |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | 128 GB |
| Main Camera | Yes | 2 megapixel | 1 megapixel | 16 megapixel |
| Wide Camera | - | - | - | 16 megapixel |
| Tele Camera | - | - | - | - |
| Video Capture | QVGA (320 x 240) | ? | QCIF (176 x 144) | 4K UHD |
| Front Camera | - | - | - | 8 megapixel |
| Weight |
3.27 oz (93g) |
2.33 oz (66g) |
3.17 oz (90g) |
8.36 oz (237g) |
| Dimensions |
3.36" x 1.89" x 0.9" (85 x 48 x 22.9 mm) |
4.45" x 1.97" x 0.27" (113 x 50 x 6.9 mm) |
3.37" x 1.78" x 0.93" (86 x 45 x 23.6 mm) |
6.06" x 2.95" x 0.57" (154 x 75 x 14.5 mm) |
| Form Factor | Clamshell | Slab | Clamshell | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | Android |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
GSM: 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 |
| Data Technology | WCDMA (UMTS) | EDGE | GPRS | NR (5G) |
| Features | ||||
| Barometer | - | - | - | Yes |
| Fingerprint Reader | - | - | - |
Yes stand-alone |
| Flashlight | - | - | - | Yes |
| Ruggedized | - | - | - | Yes |
| Water-Resistant | - | - | - |
Yes IPX8 (SCUBA) |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M3, T3 (mostly tele-coil compatible) |
- | - |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | Yes | Yes | n/a |
| TTY/TDD (Digital) | Yes | - | - | Yes |
| Alerts | ||||
| Extra Display | Yes | - | Yes | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| NFC | - | - | - | Yes |
| USB | Yes | Yes | Yes |
Yes USB Type C |
| Wi-Fi | - | - | - |
Yes 6E (802.11 a,ac,ax,b,g,n) |
| Contacts | ||||
| Picture ID | Yes | Yes | Yes | n/a |
| Ringer ID | Yes | Yes | Yes | n/a |
| Customization | ||||
| Custom Graphics | Yes | Yes | Yes | n/a |
| Custom Ringtones | Yes | Yes | Yes | n/a |
| Real-Music Ringers | Yes | Yes | Yes | n/a |
| Data & Network | ||||
| Data Tethering | Yes | - | - | n/a |
| Dual-SIM | - | - | - | Yes |
| External Antenna Jack | - | Yes | - | n/a |
| WAP / Web Browser | Yes | Yes | Yes | n/a |
| Input | ||||
| Predictive Text Entry | Yes | Yes | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - | - | - |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | - | - | Yes |
| Messaging | ||||
| Email Client | - | Yes | Yes | n/a |
| EMS / Picture Messaging | - | Yes | Yes | n/a |
| Instant Messaging | Yes | - | - | n/a |
| MMS | Yes | Yes | Yes | n/a |
| Text Messaging Templates | Yes | Yes | Yes | n/a |
| Music | ||||
| Music Player | - | - | Yes | n/a |
| Stereo Speakers | - | - | - | Yes |
| Photo & Video | ||||
| Miracast | - | - | - | Yes |
| TV Output | - | Yes | - | - |
| Power | ||||
| Fast Charging | - | - | - | Yes |
| Wireless Charging | - | - | - | Yes |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | n/a |
| Calculator | Yes | Yes | Yes | n/a |
| Calendar | Yes | Yes | Yes | n/a |
| To-Do List | Yes | Yes | Yes | n/a |
| Voice Memo | Yes | Yes | Yes | n/a |
| Software | ||||
| Games | Yes | Yes | Yes | n/a |
| Java (J2ME) | Yes | Yes | Yes | n/a |
| Voice | ||||
| HD Voice | - | - | - | Yes |
| Headset Jack (2.5 mm) | Yes | - | - | n/a |
| Push-To-Talk | Yes | - | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| LG CU400 / CU405 | Samsung SGH-X820 | Samsung SGH-E640 | Kyocera DuraForce Pro 3 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | LG CU400 / CU405 | Samsung SGH-X820 | Samsung SGH-E640 | Kyocera DuraForce Pro 3 |
