DJI action 4 seems like a much better deal, with bigger sensor, native waterproofing, at least 4k 60 and more. Can be had for around 169. I really don't get what price undercutting they are talking about.
XTU's S7 Pro brings a 1/2-inch Sony CMOS sensor, 4K video at up to 50 fps, dual screens, Wi-Fi 6, Gyroflow support, and a magnetic quick-release mount to the action camera segment for just $159, undercutting bigger brands like DJI and GoPro by a fair margin.