So I want te find the most feature rich smartwatch that doesn’t send data to the manufacure. I have tried the Pinetime watch, but it died after 6 months.
Infinitytime (OS) was not realy that feature rish, so I want to secrufise an Open Source watch OS. But I still want to connect it with Open Source software, like gadged bridge.
What is my best option under €200? Maybe the Xioami Mi band 7 (€50) that is supported by gadgedbrigde?
You can play/pause/forward/rewind music with basically any wireless earbuds (another e-waste device like smartwatch), and even wired audio gear (what you should buy) can play/pause/forward, and if you buy a Bluetooth DAC like one from Fiio, you have an accessory that lasts across multiple audio gear with a far more granular control.
A heart rate sensor device is extremely cheap to get, and lasts 10x longer than any smartwatch ever will.
If you cannot figure out basic mathematics of sleep cycles, then a smartwatch will be unable to help you. You are better off paying for the best alarm clock app, Gentle Wakeup ($6), than buying any smartwatch for “sleep recording”. That app will last a literal lifetime on Android. https://www.youtube.com/watch?v=-fY6J97K67E There you go, your sleep issues are fixed unless you have sleep disorders or medical conditions.
Switching clock designs on a device that will become e-waste in 3 years is the most horrific idea you could give to anyone, to justify buying a smartwatch. A smartwatch looks very ugly compared to any classy authentic watch with a stainless steel or chrome strap, and is incomparably durable as well.