Looking for a Heart Rate Tracker without Subscription and Bells and Whistles

I also had trouble finding something. I ended up going with Wofit. It’s technically a fitness tracker and is pretty simple, but it worked for my budget and my issues. The app was free and it makes you a line chart of your heart rate throughout the day which i really liked (i have inappropriate sinus tachycardia). Its battery also lasts for days without charging. I hope the option you chose works well. I feel your pain on the difficulty of finding something that works. Everything is either fitness and not heath based or really expensive.

Decided to try the DoSmarter ZX28, mixed bag reviews on Amazon with some folks saying its great and very accurate while others claim its awful and very inaccurate so I guess we'll see ¯\_(ツ)_/¯