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| Phone | Pantech Duo C810 | Samsung Jack i637 | Samsung Galaxy S7 | Coolpad Defiant | Cricket Debut S2 / AT&T Calypso 4 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | AT&T |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
2.2" diag. 4 : 3 |
2.4" diag. 4 : 3 |
5.1" diag. 16 : 9 |
5" diag. 16 : 9 |
6.1" diag. 19.5 : 9 |
| Display Resolution & Type |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
320 x 240 pixels (~167 ppi) LCD (TFT/TFD) |
1440 x 2560 pixels (~576 ppi) AMOLED |
480 x 854 pixels (~196 ppi) LCD (TFT/TFD) |
720 x 1560 pixels (~282 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | 60 Hz | 60 Hz |
| Battery | 1,320 mAh | 1,480 mAh | 3,000 mAh | 2,450 mAh | 3,000 mAh |
| Processor | ARM 920t PXA27x | ? | 2.2 GHz Qualcomm Snapdragon 820 (MSM8996) | 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) | 2 GHz MediaTek Helio A22 (MT6761WB) |
| RAM | ? | ? | 4 GB | 1 GB | 3 GB |
| Storage | ? raw hardware | ? raw hardware | 32 GB | 8 GB | 64 GB |
| Main Camera | 1 megapixel | 3 megapixel | 12 megapixel | 5 megapixel | 8 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | QVGA (320 x 240) | ? | 4K UHD | 720p HD | ? |
| Front Camera | - | - | 5 megapixel | 2 megapixel | 5 megapixel |
| Weight |
3.88 oz (110g) |
3.6 oz (102g) |
5.36 oz (152g) |
6.5 oz (184g) |
5.64 oz (160g) |
| Dimensions |
4.01" x 1.97" x 0.78" (102 x 50 x 19.8 mm) |
4.4" x 2.4" x 0.5" (112 x 61 x 12.7 mm) |
5.61" x 2.74" x 0.31" (142 x 70 x 7.9 mm) |
5.69" x 2.81" x 0.4" (145 x 71 x 10.2 mm) |
6.11" x 2.87" x 0.34" (155 x 73 x 8.6 mm) |
| Platform / OS | Windows Mobile Standard | Windows Mobile Standard | Android | Android | Android |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 29, 30, 40, 41 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66 WCDMA: 1, 2, 4, 5, 8 |
| Data Technology | HSDPA 1.8 | HSDPA 3.6 | LTE (Cat 9) | LTE (Cat 4) | LTE (Cat 4) |
| Features | |||||
| Fingerprint Reader | - | - | Yes | - | - |
| Flashlight | - | - | Yes | Yes | Yes |
| VR-ready | - | - | Yes | - | - |
| Water-Resistant | - | - |
Yes IPX8 (SCUBA) |
- | - |
| Accessibility | |||||
| Hearing Aid Compatible | - |
Yes M3 (mostly compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
| TTY/TDD (Digital) | - | - | Yes | Yes | - |
| Alerts | |||||
| Ringer Profiles | Yes | Yes | - | - | - |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | Yes | Yes |
| MirrorLink | - | - | Yes | - | - |
| NFC | - | - | Yes | - | - |
| USB | Yes | Yes |
Yes Micro-USB |
Yes Micro-USB |
Yes USB Type C |
| Wi-Fi | - |
Yes 802.11 b,g |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 4 (802.11 b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
| Data & Network | |||||
| Dual-SIM | - | - | Yes | - | - |
| Input | |||||
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | Yes | - | - | - |
| Touch Screen | - | - |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | Yes | Yes | Yes | Yes | Yes |
| Music | |||||
| Headphone Jack (3.5mm) | - | - | Yes | Yes | Yes |
| Photo & Video | |||||
| DLNA | - | - | Yes | - | - |
| Miracast | - | - | Yes | - | - |
| Power | |||||
| Fast Charging | - | - | Yes | - | Yes |
| Wireless Charging | - | - | Yes | - | - |
| Voice | |||||
| HD Voice | - | - | Yes | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| Pantech Duo C810 | Samsung Jack i637 | Samsung Galaxy S7 | Coolpad Defiant | Cricket Debut S2 / AT&T Calypso 4 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Pantech Duo C810 | Samsung Jack i637 | Samsung Galaxy S7 | Coolpad Defiant | Cricket Debut S2 / AT&T Calypso 4 |
