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Works great
Bluetooth feature works on iPhone 15. This device is as accurate as some others. It gives me a HR graph on the iPhone and it saves the history for future reference.Unreliable
The app constantly gives false info on heart rate saying it’s 180s when it’s actually 58Works for what I need.
Works to record oxygen and pulse rate. Pulse rate is pretty accurate when I measure it against my blood pressure monitor.
Would be nice if you could add a section for notes in the app. I was having a slight asthma attack and used this O2 meter after I took my rescue inhaler and of course my HR was way up. Just need a way to distinguish between regular use and after using medication for breathing/asthma.Show less