I got a mi fit band 6, it’s great, has a two week battery, and vibrates when you’ve been stationary for too long and reminds you to get up and move.
Recommend this as it could potentially save your life, especially if you play MMOs.
My Apple Watch series 6 does the same thing, I clock in at least 14-16 hours of being on my feet daily and close all my rings Hbu?
Also Apple Watch here, though Series 4. Most days I close my rings, largely thanks to Beat Saber since my line of work has me at my desk for most of the day.