8 GB RAM expansion function. Support for the maximum shooting resolution of the main and front cameras 2560x1440 at 30 fps. Support underwater video and photo mode. Side adjustable button. The sampling rate of the sensor layer is 240 Hz.
USmart Expansion port (connection of endoscope, microscope, etc.)
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Ulefone Armor 21 Rugged Smartphone16GB256GB/2TB SD 9600mAh 122dB Speaker 64MP24MP Night Vision 658 FHD IP68/IP69K Mobile Pho
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