I have Raynaud's also, my kids bought me a rechargeable hand warmer. Sometimes I need to warm my hands before using my oximeter. I think they got it on Amazon. When my hands are cold, I can't get them to register at all. It says my finger is out. If I don't warm them, my reading is upper 80's. Warm they will go up to 94-96.

Hi Ladybug. Try looking for an earlobe pulse oximeter. It may be a bit expensive though. 🫂

If anybody is thinking about getting an Apple Watch, bear in mind that the very newest ones coming out of production, do NOT have the BloodOx feature as Apple has at least temporarily lost the licensing to sell that product. So be sure you get one that was sent to the distributor before they lost that feature. My cardiologist had suggested getting an Apple Watch after a bad echo last summer and before I started with my PAH meds in the Fall, it was sending me Afib alerts 3 or 4 times a day. It's really a valuable medical tool to have in your arsenal.

It happens h th o me too on my fingers. I just bought an Apple Watch & im 94-99 on that. I feel like it’s a good investment for me

I use the BloodOx feature on my Apple Watch. My number using the watch is generally about 3 points higher than using the finger oximeter.