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| Phone | Pantech Duo C810 | ZTE Grand X 3 | LG K20 / Harmony / Grace | Samsung Memoir SGH-T929 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.2" diag. 4 : 3 |
5.5" diag. 16 : 9 |
5.3" diag. 16 : 9 |
3.1" diag. 5 : 3 |
| Display Resolution & Type |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~267 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~277 ppi) LCD (TFT/TFD) |
240 x 400 pixels (~150 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | ? |
| Battery | 1,320 mAh | 3,080 mAh | 2,800 mAh | ? |
| Processor | ARM 920t PXA27x | 1.3 GHz Qualcomm Snapdragon 210 (MSM8909) | 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) | ? |
| RAM | ? | 2 GB | 1.5 GB | ? |
| Storage | ? raw hardware | 16 GB | 16 GB | ? raw hardware |
| Main Camera | 1 megapixel | 8 megapixel | 8 megapixel | 8 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | QVGA (320 x 240) | 720p HD | 1080p HD | ? |
| Front Camera | - | 2 megapixel | 5 megapixel | - |
| Weight |
3.88 oz (110g) |
6 oz (170g) |
5 oz (142g) |
4.4 oz (125g) |
| Dimensions |
4.01" x 1.97" x 0.78" (102 x 50 x 19.8 mm) |
6.07" x 2.99" x 0.37" (154 x 76 x 9.4 mm) |
5.9" x 3" x 0.3" (150 x 76 x 7.6 mm) |
4.17" x 2.11" x 0.55" (106 x 54 x 14 mm) |
| Form Factor | Slide | Slab | Slab | Slab |
| Platform / OS | Windows Mobile Standard | Android | Android | (proprietary) |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
| Data Technology | HSDPA 1.8 | LTE (Cat 4) | LTE (Cat 4) | HSDPA 3.6 |
| Features | ||||
| Flashlight | - | Yes | Yes | - |
| GPS / Location | n/a | n/a | n/a | Yes |
| Accessibility | ||||
| Hearing Aid Compatible | - |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3 (mostly compatible) |
| Multiple Languages | n/a | n/a | n/a | Yes |
| TTY/TDD (Digital) | - | Yes | Yes | Yes |
| Alerts | ||||
| Ringer Profiles | Yes | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| NFC | - | - | Yes * | - |
| USB | Yes |
Yes USB Type C |
Yes Micro-USB |
Yes |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | ||||
| Picture ID | n/a | n/a | n/a | Yes |
| Ringer ID | n/a | n/a | n/a | - |
| Voice Dialing | n/a | n/a | n/a | Yes |
| Customization | ||||
| Custom Graphics | n/a | n/a | n/a | Yes |
| Custom Ringtones | n/a | n/a | n/a | Yes |
| Real-Music Ringers | n/a | n/a | n/a | Yes |
| Data & Network | ||||
| Data Tethering | n/a | n/a | n/a | - |
| WAP / Web Browser | n/a | n/a | n/a | Yes |
| Input | ||||
| Predictive Text Entry | n/a | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | - | - | - |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
Yes |
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | n/a | n/a | n/a | Yes |
| Instant Messaging | n/a | n/a | n/a | Yes |
| MMS | n/a | n/a | n/a | Yes |
| Text Messaging Templates | n/a | n/a | n/a | Yes |
| Music | ||||
| FM Radio | - | - | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | Yes | - |
| Music Player | n/a | n/a | n/a | Yes |
| Photo & Video | ||||
| TV Output | - | - | - | Yes |
| Power | ||||
| Fast Charging | - | Yes | - | - |
| Productivity | ||||
| Alarm | n/a | n/a | n/a | Yes |
| Calculator | n/a | n/a | n/a | Yes |
| Calendar | n/a | n/a | n/a | Yes |
| To-Do List | n/a | n/a | n/a | Yes |
| Voice Memo | n/a | n/a | n/a | Yes |
| Software | ||||
| Games | n/a | n/a | n/a | Yes |
| Voice | ||||
| HD Voice | - | Yes | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Pantech Duo C810 | ZTE Grand X 3 | LG K20 / Harmony / Grace | Samsung Memoir SGH-T929 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Pantech Duo C810 | ZTE Grand X 3 | LG K20 / Harmony / Grace | Samsung Memoir SGH-T929 |
