Microsoft Surface Dial
I never knew what exactly it does.
Here's a video that explains it well
Basically, it's just a knob with shake motor for feedback. It can control sound level, any slider setting, or as pie menu selector. Need custom app software.Buy Microsoft Surface Dial
As far as tech and design goes, i don't think Apple's leading anymore.
If you have a question, put $5 at patreon and message me.