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| Phone | Pantech Duo C810 | Samsung Galaxy Z Fold2 | Samsung SCH-A990 | Audiovox CDM-8900 | ZTE Z431 / Altair |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
2.2" diag. 4 : 3 |
7.6" diag. 4 : 3 |
? | ? |
2.4" diag. 4 : 3 |
| Display Resolution & Type |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
1768 x 2208 pixels (~372 ppi) AMOLED |
240 x 320 pixels LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
320 x 240 pixels (~167 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | ? | ? |
| Battery | 1,320 mAh | 4,500 mAh | 1,000 mAh | 1,000 mAh | 1,000 mAh |
| Processor | ARM 920t PXA27x | 3.1 GHz Qualcomm Snapdragon 865+ | ? | ? | ? |
| RAM | ? | 12 GB | ? | ? | ? |
| Storage | ? raw hardware | 256 GB | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 1 megapixel | 12 megapixel | 3 megapixel | Yes | 2 megapixel |
| Wide Camera | - | 12 megapixel | - | - | - |
| Tele Camera | - | 12 megapixel | - | - | - |
| Video Capture | QVGA (320 x 240) | 4K UHD | ? | - | QVGA (320 x 240) |
| Front Camera | - | 10 megapixel | - | - | - |
| Weight |
3.88 oz (110g) |
9.95 oz (282g) |
4.4 oz (125g) |
3.28 oz (93g) |
3.52 oz (100g) |
| Dimensions |
4.01" x 1.97" x 0.78" (102 x 50 x 19.8 mm) |
6.27" x 2.68" x 0.66" (159 x 68 x 16.8 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
3.41" x 1.77" x 0.75" (87 x 45 x 19.1 mm) |
4.49" x 2.39" x 0.41" (114 x 61 x 10.4 mm) |
| Form Factor | Slide | Foldable | Clamshell | Clamshell | Slab |
| Platform / OS | Windows Mobile Standard | Android | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
5G: 2, 5, 25, 41, 66, 71, 260, 261 4G LTE: 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
CDMA: 850, 1900 AMPS: 850 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | HSDPA 1.8 | NR (5G) | EVDO r0 | 1xRTT | ? |
| Features | |||||
| Barometer | - | Yes | - | - | - |
| Fingerprint Reader | - |
Yes stand-alone |
- | - | - |
| Flashlight | - | Yes | Yes | - | - |
| GPS / Location | n/a | n/a | Yes | Yes | Yes |
| Accessibility | |||||
| Hearing Aid Compatible | - |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M3 (mostly compatible) |
- |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | n/a | Yes | Yes | Yes |
| TTY/TDD (Digital) | - | Yes | Yes | - | Yes |
| Alerts | |||||
| Extra Display | - | Yes | Yes | Yes | - |
| Ringer Profiles | Yes | - | - | - | Yes |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | - | Yes |
| NFC | - | Yes | - | - | - |
| USB | Yes |
Yes USB Type C |
Yes | Yes |
Yes Micro-USB |
| UWB | - | Yes | - | - | - |
| Wi-Fi | - |
Yes 6 (802.11 a,ac,ax,b,g,n) |
- | - | - |
| Contacts | |||||
| Picture ID | n/a | n/a | Yes | Yes | Yes |
| Ringer ID | n/a | n/a | Yes | Yes | Yes |
| Voice Dialing | n/a | n/a | Yes | Yes | - |
| Customization | |||||
| Custom Graphics | n/a | n/a | Yes | Yes | Yes |
| Custom Ringtones | n/a | n/a | Yes | Yes | Yes |
| Real-Music Ringers | n/a | n/a | Yes | - | Yes |
| Data & Network | |||||
| Data Tethering | n/a | n/a | Yes | Yes | Yes |
| WAP / Web Browser | n/a | n/a | Yes | Yes | Yes |
| Input | |||||
| Predictive Text Entry | n/a | n/a | Yes | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | - | - | - | Yes |
| Touch Screen | - |
Yes Capacitive |
- | - | - |
| Memory | |||||
| Memory Card Slot | Yes | - | Yes | - | Yes |
| Messaging | |||||
| Email Client | n/a | n/a | - | - | Yes |
| EMS / Picture Messaging | n/a | n/a | Yes | Yes | - |
| Instant Messaging | n/a | n/a | - | - | - |
| MMS | n/a | n/a | Yes | - | Yes |
| Text Messaging Templates | n/a | n/a | Yes | Yes | Yes |
| Music | |||||
| Headphone Jack (3.5mm) | - | - | - | - | Yes |
| Music Player | n/a | n/a | Yes | - | Yes |
| Stereo Speakers | - | Yes | Yes | - | - |
| Photo & Video | |||||
| TV Output | - | Yes | Yes | - | - |
| Power | |||||
| Fast Charging | - | Yes | - | - | - |
| Wireless Charging | - | Yes | - | - | - |
| Productivity | |||||
| Alarm | n/a | n/a | Yes | Yes | Yes |
| Calculator | n/a | n/a | Yes | Yes | Yes |
| Calendar | n/a | n/a | Yes | Yes | Yes |
| To-Do List | n/a | n/a | - | - | - |
| Voice Memo | n/a | n/a | Yes | Yes | Yes |
| Software | |||||
| BREW | n/a | n/a | Yes | Yes * | Yes |
| Games | n/a | n/a | Yes | Yes | Yes |
| Java (J2ME) | n/a | n/a | - | Yes * | - |
| Voice | |||||
| HD Voice | - | Yes | - | - | - |
| Headset Jack (2.5 mm) | n/a | n/a | - | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Pantech Duo C810 | Samsung Galaxy Z Fold2 | Samsung SCH-A990 | Audiovox CDM-8900 | ZTE Z431 / Altair | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Pantech Duo C810 | Samsung Galaxy Z Fold2 | Samsung SCH-A990 | Audiovox CDM-8900 | ZTE Z431 / Altair |
