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| Phone | Kyocera Marbl / K132 / Velvet | Samsung SGH-T809 / SGH-D820 | OnePlus 8T / 8T+ | Samsung SGH-X820 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? |
6.6" diag. 20 : 9 |
? |
| Display Resolution & Type |
128 x 128 pixels LCD (STN) |
240 x 320 pixels LCD (TFT/TFD) |
1080 x 2400 pixels (~402 ppi) AMOLED |
220 x 176 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | 120 Hz | ? |
| Battery | 900 mAh | ? | 4,500 mAh | 650 mAh |
| Processor | ? | ? | Qualcomm Snapdragon 865 | ? |
| RAM | ? | ? | 8 GB * | ? |
| Storage | ? raw hardware | ? raw hardware | 128 GB * | ? raw hardware |
| Main Camera | - | 1 megapixel | 48 megapixel | 2 megapixel |
| Wide Camera | - | - | 16 megapixel | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | CIF (352 x 288) | 4K UHD | ? |
| Front Camera | - | - | 16 megapixel | - |
| Weight |
2.96 oz (84g) |
3.35 oz (95g) |
6.63 oz (188g) |
2.33 oz (66g) |
| Dimensions |
3.39" x 1.73" x 0.83" (86 x 44 x 21.1 mm) |
3.9" x 2" x 0.58" (99 x 51 x 14.7 mm) |
6.33" x 2.92" x 0.33" (161 x 74 x 8.4 mm) |
4.45" x 1.97" x 0.27" (113 x 50 x 6.9 mm) |
| Form Factor | Clamshell | Slide | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
GSM: 850, 900, 1800, 1900 |
5G: 1, 2, 3, 5, 25, 41, 66, 71 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 28, 29, 30, 34, 38, 39, 40, 41, 46, 48, 66, 71 WCDMA: 1, 2, 4, 5, 8, 19 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
| Data Technology | 1xRTT | EDGE | NR (5G) | EDGE |
| Features | ||||
| Barometer | - | - | Yes | - |
| Fingerprint Reader | - | - |
Yes in-display (optical) |
- |
| Flashlight | - | - | Yes | - |
| GPS / Location | Yes | - | n/a | - |
| Water-Resistant | - | - |
Yes * IPX8 (SCUBA) |
- |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
Yes M3 (mostly compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
- |
| Multiple Languages | Yes | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | - |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| NFC | - | - | Yes | - |
| USB | - | Yes |
Yes USB Type C |
Yes |
| Wi-Fi | - | - |
Yes 6 (802.11 a,ac,ax,b,g,n) |
- |
| Contacts | ||||
| Picture ID | - | Yes | n/a | Yes |
| Ringer ID | - | Yes | n/a | Yes |
| Voice Dialing | Yes | - | n/a | - |
| Customization | ||||
| Custom Graphics | Yes | Yes | n/a | Yes |
| Custom Ringtones | Yes | Yes | n/a | Yes |
| Real-Music Ringers | - | Yes | n/a | Yes |
| Data & Network | ||||
| Data Tethering | - | Yes | n/a | - |
| Dual-SIM | - | - | Yes * | - |
| External Antenna Jack | - | - | n/a | Yes |
| WAP / Web Browser | Yes | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | Yes | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | - | Yes | - | - |
| Messaging | ||||
| Email Client | - | - | n/a | Yes |
| EMS / Picture Messaging | Yes | Yes | n/a | Yes |
| Instant Messaging | - | Yes | n/a | - |
| MMS | - | Yes | n/a | Yes |
| Text Messaging Templates | - | Yes | n/a | Yes |
| Music | ||||
| Music Player | - | Yes | n/a | - |
| Stereo Speakers | - | Yes | Yes | - |
| Photo & Video | ||||
| TV Output | - | - | Yes | Yes |
| Power | ||||
| Fast Charging | - | - | Yes | - |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | Yes |
| Calculator | Yes | Yes | n/a | Yes |
| Calendar | Yes | Yes | n/a | Yes |
| To-Do List | Yes | Yes | n/a | Yes |
| Voice Memo | Yes | Yes | n/a | Yes |
| Software | ||||
| BREW | Yes * | - | n/a | - |
| Games | Yes | Yes | n/a | Yes |
| Java (J2ME) | Yes * | Yes | n/a | Yes |
| Voice | ||||
| HD Voice | - | - | Yes | - |
| Headset Jack (2.5 mm) | Yes | - | n/a | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Kyocera Marbl / K132 / Velvet | Samsung SGH-T809 / SGH-D820 | OnePlus 8T / 8T+ | Samsung SGH-X820 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Kyocera Marbl / K132 / Velvet | Samsung SGH-T809 / SGH-D820 | OnePlus 8T / 8T+ | Samsung SGH-X820 |
