It's the battle of the flip foldables - well, it's a battle for survival in the hands of Zack from JerryRigEverything. In his latest video he takes apart the Motorola Razr 2019 and compares it to the Samsung Galaxy Z Flip, focusing mostly on the hinge mechanisms of both phones. Also, as promised after the Z Flip video, he shows a better shot of the bristles that Samsung relies on to keep the dust out of the hinge. Motorola's approach is different. Several times throughout the video you'll see sticky goop over important connections inside the Razr. This is meant to catch dust and keep water...
Source: https://www.gsmarena.com/motorola_razr_2019_teardown_video_shows_a_very_different_hinge_design_from_the_z_flips-news-41732.php
