I use both the vibrating O2 Ring and the audible alarm Oxylink. My hands are large but they both fit comfortably on my pinky finger. I choose my non-dominate hand for ease when writing or performing other tasks. I adjusted to the device quickly and it is never cumbersome or in the way. I forget I am even wearing it unless it signals me. However, do be careful when dressing not to let the device catch and hook on your sleeve. The vibrating ring, like a vibrating cell phone setting, is best for meetings, sleeping and loud environments. It would also be best for the hearing impaired. By contrast, the audible alarm Oxylink is terrific for every day living. It is invaluable if others need to be aware of your O2 or pulse levels, such as with children or the elderly. My wife likes both rings constant monitoring because she doesn’t need to worry and remind me to check my levels as she did with the finger-tip Oximeter. The cell phone app is an excellent source of information for you and your doctor. It provides a history that allows you to recognize trends, patterns and times when your levels are more likely to fluctuate. I recommend these products and I believe the cost is reasonable for the health benefits and peace of mind. I might add, This company has been easy to contact and very helpful. Excellent customer service with exceptional products.

This is awesome. If my Mom gets continuous snoring and cannot get O2 it can tell me in time. But it requires a certain distance, I cannot get the alarm if I am not at home today.

It has worked perfectly. I could not ask more than that. I highly recommend this product.

I have two oxygen meters from wellue. O2Ring is great, but my father needs an audio alarm, so I bought Oxylink, the report for Oxylink looks simpler then O2ring, but my main purpose is an audio alert.

I love this product. It alerts me when my dad occurs abnormal oxygen levels.

It always works perfectly. The best part is, the alert continues until you turn it off. If it were one ding, I may not wake up. And it would immediately alert again if my oxygen level falls again. This ensures I wake up. If you have someone elderly, sleep apnea, or anyone you need to ensure alive, this is the best product. It has helped us so much and I can finally sleep with peace of mind!

I purchased the oxygen monitor with an audible alarm for the purpose of alerting and monitoring when my loved one on their bed in the middle of the night. I placed the phone near my bed on the floor, it alerted me immediately so that I could quickly get up and care for my loved one. The device on my wife finger is also a beep at the same time. I wish I had known about this many months ago, but now that I have it, it has been a lifesaver in many ways! I HIGHLY RECOMMEND this product!!!!