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| Phone | Pantech Duo C810 | Samsung Galaxy A21 | Samsung Renown U810 | Samsung Galaxy Z Flip |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.2" diag. 4 : 3 |
6.5" diag. 20 : 9 |
2.3" diag. 4 : 3 |
6.7" diag. 22 : 9 |
| Display Resolution & Type |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
720 x 1600 pixels (~270 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~174 ppi) LCD (TFT/TFD) |
1080 x 2636 pixels (~425 ppi) AMOLED |
| Display Refresh | ? | 60 Hz | ? | 60 Hz |
| Battery | 1,320 mAh | 4,000 mAh | 800 mAh | 3,300 mAh |
| Processor | ARM 920t PXA27x | 2 GHz MediaTek Helio P35 (MT6765) | ? | 3 GHz Qualcomm Snapdragon 855+ |
| RAM | ? | 3 GB | ? | 8 GB |
| Storage | ? raw hardware | 32 GB | ? raw hardware | 256 GB |
| Main Camera | 1 megapixel | 16 megapixel | 2 megapixel | 12 megapixel |
| Wide Camera | - | 8 megapixel | - | 12 megapixel |
| Tele Camera | - | - | - | - |
| Video Capture | QVGA (320 x 240) | 1080p HD | QVGA (320 x 240) | 4K UHD |
| Front Camera | - | 13 megapixel | - | 10 megapixel |
| Weight |
3.88 oz (110g) |
6.81 oz (193g) |
4.05 oz (115g) |
6.46 oz (183g) |
| Dimensions |
4.01" x 1.97" x 0.78" (102 x 50 x 19.8 mm) |
6.61" x 3.02" x 0.32" (168 x 77 x 8.1 mm) |
3.87" x 1.95" x 0.69" (98 x 50 x 17.5 mm) |
3.44" x 2.9" x 0.68" (87 x 74 x 17.3 mm) |
| Form Factor | Slide | Slab | Clamshell | Foldable |
| Platform / OS | Windows Mobile Standard | Android | (proprietary) | Android |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 26, 28, 38, 39, 40, 41, 66, 71 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 66, 71 WCDMA: 2, 3, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
| Data Technology | HSDPA 1.8 | LTE (Cat 6) | EVDO r0 | LTE (Cat 16) |
| Features | ||||
| Barometer | - | - | - | Yes |
| Fingerprint Reader | - |
Yes stand-alone |
- |
Yes stand-alone |
| Flashlight | - | Yes | - | Yes |
| GPS / Location | n/a | n/a | Yes | n/a |
| Accessibility | ||||
| Adjustable Text Size | n/a | n/a | Yes | n/a |
| Hearing Aid Compatible | - |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | n/a | Yes | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | - | Yes | Yes |
| Ringer Profiles | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| MirrorLink | - | - | - | Yes |
| NFC | - | Yes | - | Yes |
| USB | Yes |
Yes USB Type C |
Yes |
Yes USB Type C |
| Wi-Fi | - |
Yes 5 (802.11 a,ac,b,g,n) |
- |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | ||||
| Picture ID | n/a | n/a | Yes | n/a |
| Ringer ID | n/a | n/a | Yes | n/a |
| Voice Dialing | n/a | n/a | Yes | n/a |
| Customization | ||||
| Custom Graphics | n/a | n/a | Yes | n/a |
| Custom Ringtones | n/a | n/a | Yes | n/a |
| Real-Music Ringers | n/a | n/a | - | n/a |
| Data & Network | ||||
| Data Tethering | n/a | n/a | Yes | n/a |
| WAP / Web Browser | n/a | n/a | Yes | n/a |
| Input | ||||
| Predictive Text Entry | n/a | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | - | - | - |
| Touch Screen | - |
Yes Capacitive |
- |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | - |
| Messaging | ||||
| Email Client | n/a | n/a | Yes | n/a |
| EMS / Picture Messaging | n/a | n/a | Yes | n/a |
| Instant Messaging | n/a | n/a | Yes | n/a |
| MMS | n/a | n/a | Yes | n/a |
| Text Messaging Templates | n/a | n/a | Yes | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | - | Yes | - | - |
| Music Player | n/a | n/a | Yes | n/a |
| Photo & Video | ||||
| TV Output | - | - | - | Yes |
| Power | ||||
| Fast Charging | - | Yes | - | Yes |
| Wireless Charging | - | - | - | Yes |
| Productivity | ||||
| Alarm | n/a | n/a | Yes | n/a |
| Calculator | n/a | n/a | Yes | n/a |
| Calendar | n/a | n/a | Yes | n/a |
| To-Do List | n/a | n/a | - | n/a |
| Voice Memo | n/a | n/a | - | n/a |
| Software | ||||
| BREW | n/a | n/a | Yes | n/a |
| Games | n/a | n/a | Yes | n/a |
| Voice | ||||
| HD Voice | - | Yes | - | Yes |
| Headset Jack (2.5 mm) | n/a | n/a | Yes | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Pantech Duo C810 | Samsung Galaxy A21 | Samsung Renown U810 | Samsung Galaxy Z Flip | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Pantech Duo C810 | Samsung Galaxy A21 | Samsung Renown U810 | Samsung Galaxy Z Flip |
