I found a 4K action camera that competes with my GoPro (and it's on sale)
DJI Osmo Action 4 is a pro-grade action camera with a 1/1.3-inch sensor, 4K120 recording, advanced stabilization, and 10‑bit D‑Log M color for wider dynamic range.
I found a $170 mobile gimbal that rivals my DJI - and it's easy to set up
Hohem iSteady V3 Ultra offers greatly improved AI tracking and stabilization in an affordable, easy-to-use smartphone gimbal with built-in stand and lighting.