Here is a smart glove that you can wear to monitor your heart rate, HRV, oxygen saturation, sleep, and workout. Heart Up can help you maximize your workouts and sync all the data to your iPhone or Android device.
The companion app lets you set thresholds for your heart data and set contacts you want to alert just in case. It is made of 100% cotton and lasts up to 7 days on battery.
[where to get it]