Cheap, sleek, waterproof, gorilla glass always-on display, battery lasts a month, does GPS tracking without smartphone connection and you can sync it via Gadgetbridge to keep all your data private without any account/cloud services.
I have the original Bip and am very satisfied with the hardware (lasts forever, looks pretty good) and somewhat satisfied with the software (good selection of watch faces, it's gadgetbridge compatible, but activity mode is a tad bit too easy to enter and too hard to exit)
I have the Bip S, and was trying to get that for a friend, but as I mentioned... I cannot find them in stock anywhere.
I've been very pleased with it. Great battery life, even with GPS while running. I found it comparable to Garmins in that respect.
The chunky looks could turn people off, but I prefer ugly retro-looking stuff :)
Edit: here is DC rainmaker's review https://www.dcrainmaker.com/2020/06/timex-r300-gps-smartwatc...