I think I have done a 100 tries now, but somewhere between 50-60 percent it stops measuring. Now matter if I have my watch below or above my wrist or even further up my arm. I have used dry and moist fingers. Arms high and low...
For me it just never works. I have the latest software on my Classic Watch 4.
Great initiative in trying to figure out why it's not working. Thanks for reaching out to us!
I'm assuming you've also cleaned out the contact points - the two buttons on your watches - with some cotton buds misted with alcohol? If you haven't, please do so and try it out again.
Another option is a factory reset - if the issue is a software one, a reset will likely get it working again.
If either cleaning out the contact points for the sensor or the factory reset doesn't work, you might need to bring it to your nearest Samsung Service Center for a check-up. Wouldn't hurt to see if they can help out! 😄