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| Phone | Red Hydrogen One | LG K8 (2018) / Zone 4 / Tribute Dynasty / Tribute Empire / K8s | ZTE Engage LT / Engage MT |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
5.7" diag. 16 : 9 |
5" diag. 16 : 9 |
4" diag. 5 : 3 |
| Display Resolution & Type |
1440 x 2560 pixels (~515 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~294 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | 60 Hz | 60 Hz |
| Battery | 4,510 mAh | 2,500 mAh | 1,900 mAh |
| Processor | 2.5 GHz Qualcomm Snapdragon 835 (MSM8998) | 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) | ? |
| RAM | 6 GB | 2 GB | 1 GB |
| Storage | 128 GB * | 16 GB | 4 GB |
| Main Camera | 12 megapixel | 8 megapixel | 3 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | 4K UHD | 1080p HD | WVGA / 480p |
| Front Camera | 8 megapixel | 5 megapixel | Yes |
| Weight |
9.63 oz (273g) |
4.94 oz (140g) |
5.09 oz (144g) |
| Dimensions |
6.54" x 3.28" x 0.39" (166 x 83 x 10 mm) |
5.7" x 2.84" x 0.32" (145 x 72 x 8.1 mm) |
4.78" x 2.54" x 0.46" (121 x 64 x 11.7 mm) |
| Platform / OS | Android | Android | Android |
| Network Bands |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 66 WCDMA: 1, 2, 4, 5, 8, 19 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1700, 1900 |
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| Data Technology | LTE (Cat 12) | LTE (Cat 4) | EVDO rA |
| Features | |||
| Fingerprint Reader |
Yes stand-alone |
- | - |
| Flashlight | Yes | Yes | - |
| Accessibility | |||
| Hearing Aid Compatible |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
- |
| TTY/TDD (Digital) | Yes | Yes | Yes |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| NFC | Yes | - | - |
| USB |
Yes USB Type C |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 4 (802.11 b,g,n) |
Yes |
| Input | |||
| Side Keys | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | Yes | Yes | Yes |
| Music | |||
| FM Radio | Yes | - | - |
| Headphone Jack (3.5mm) | Yes | Yes | Yes |
| Stereo Speakers | Yes | - | - |
| Power | |||
| Fast Charging | Yes | - | - |
| Voice | |||
| HD Voice | Yes | Yes | - |
| Speaker Phone | Yes | Yes | Yes |
| Red Hydrogen One | LG K8 (2018) / Zone 4 / Tribute Dynasty / Tribute Empire / K8s | ZTE Engage LT / Engage MT | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Red Hydrogen One | LG K8 (2018) / Zone 4 / Tribute Dynasty / Tribute Empire / K8s | ZTE Engage LT / Engage MT |
