Why? I'd go with the DJI action camera (link below) or the latest GoPro and then
You'll have an action camera as well. If the DJI action camera had been available I would have gotten it at the time I got my GoPro hero 7 black. The screen on the front to the DJI action camera would be very nice for selfies.
The stabilization on both cameras is amazing. You don't need a gimbal for smooth videos. Check them out. You can also use the action camera for q bunch of other things you couldn't use the osmo pocket for.