Is the Amazfit Bip still a good choice for simple duration/route/heartrate/step/sleep tracking?

It works with gadgetbridge out of the box, with no need to connect with other software or create a remote account. 20-30 day battery life.

I saw the PineTime today, which looks interesting.

I've tried a Bip Pro, but it requires a connection and account before being usable with gadgetbridge.

What are the other options to consider? Which watches have higher accuracy for sleep/HR/step metrics?

Anyone using this? I like the design, battery life, and price, but I'd love to hear from a user before buying. What are the notifications like? Useful? How is it with the lack of vibration?

I have a Mi Band 7 Version M2129B1 with Firmware 1.27.0.4. How do I update the device? I found https://mega.nz/folder/Y4c0DZTJ#I3NBPacQlCfJGOZ5hKI5WA/folder/5ok1WaoA where you can download zip files, but the Gadgetbridge wiki says something about *.fw files. Don't want to brick the device. Any recommendations?