Gloria T.
I Recommend This Company Highly!
I ordered a new CPAP machine from Wellue and received great service from them. The machine was received promptly and it works perfectly. This is one company I would definitely recommend.

Wellue was founded in 2013, specializing in developing electronic devices with medical-grade accuracy and consumer-friendly.Our mission is to bring peace of mind by finding an easy and intelligent way to deliver health data to patients and clinicians.Wellue focuses on a number of blood oxygen monitor, ECG monitor and handheld ultrasound type products,etc. Our products include various vital signs monitoring equipment and fitness and health-related products and are exported to more than 40 countries and regions around the world.
Wellue (getwellue.com) has 420 customer reviews on Five Star Index, with an average rating of 4.0 out of 5.
Is this your business?
Correct your details and reply to customers in public. Both are free.
Claim this listing420 approved reviews, newest moderated first
Gloria T.
I ordered a new CPAP machine from Wellue and received great service from them. The machine was received promptly and it works perfectly. This is one company I would definitely recommend.
Merc A.
Huge disappointment that the product failed 13 months after purchase. While it was working it provided reliable and accurate data. I am not willing to pay $160 per year for this. Wellue should either improve reliability or market the product as having a limited life. Here is the exchange with Wellue support: Hi Sorry to hear that. Kindly provide us a short video about this issue, with SN# of the unit, we`ll check and provide a best solution. Please give us a copy of the order id(amazon or our store: getwellue.com) for further warranty claims. We will give you a quick solution after confirming that and looking forward to your reply. Kinds, Jennie from Wellue It's not displaying error 4 today it is just not getting spo2 I received the device as a gift so I don't have the receipt. SN is shown on the video of O2 insight pro showing config screen Wellue Support Thu, Jan 15, 10:13 PM (7 days ago) to me Hi Kindly share us your order copy to check more details. Kinds, Jennie from Wellue I already said it was a gift and I don't have the receipt Wellue Support Thu, Jan 15, 10:50 PM (7 days ago) to me Hi May the sensor is defect if the device show "error4” . You may purchase a new sensor cable via the following link to fix this issue. SpO2 Ring Cable for SleepU™ & Checkme™ O2 Max – Wellue Kinds, Jennie from Wellue The latest reply from Wellue further reinforces my original point that the Sleepu is more like a subscription device than a single purchase!
Response from WellueJan 22, 2026
Thank you for your feedback. Warranty service requires order information to verify coverage. Without proof of purchase, we’re unable to confirm it and offer warranty support. For the “Error 4” or no SpO₂ issue, replacing the sensor cable usually resolves the problem. Please contact us at [email protected] if you have any further concerns.
Pam S.
Wellhead Portable Ultrasound Machine is the best product and very economical. This is my second purchase in years. This upgrade gives me embryo size for the does that pasture breed. No surprises on multi kids because thus machine is so clear and accurate, with so many options. The ease of hand held, I can ultrasound from barn to barn or pasture, no stressing the does. The amount of money we saved already from blood testing and guessing due dates to accuracy, preparation, and more successful births. Thank you for offering such an awesome product to the rancher at an affordable price and high quality.
Alicia B.
Wellue specifically says this product is not meant for continuous monitoring, but that's how we use it. My dad needs oxygen 24/7. He has full time caretakers and cameras on him. However, it's still impossible to see when he pulls the canula out and it's to the side of his face, etc. They check him every hour through the night, but if it is out, we didn't know how long. The ring alerts the phone when his oxygen drops below 88 (you can set your own threshold) so we can fix it immediately. The ring is more accurate than an oximeter and also tells us his pulse. We can see continual tracking on the app. I need 2 rings, so we can be charging one while using another. They've been a complete gamechanger. Home healthcare nurses rave about it. I think it needs to get added to Medicare and available to everyone!
Ivan C.
Compré un reloj para medir la presión arterial de mi madre y comparando los datos que da con el tensiometro de la farmacia son casi iguales Muy satisfecho con el producto
Cari
The O2 Ring S has vibrated me awake every couple of nights when my oxygen drops. It's good to know why I wake up tired some mornings. As far as I've found, there's nothing else like it on the market. I download the ring every morning after I get up and check my oxygen levels, pulse rates and motion for the previous night. I'm still learning to use the app, but the more history I build up, the more I get from the data.
judith C.
The improvements really show.... I am a multi-year customer and user of O2 Ring. I find this newest version "S" to be just as light yet more robust. The charging port cover fits better, and you advertise greater charge capacity. It appears that the maximum length of sessions is about 10 hours. And more sessions per charge. The fit of the ring is very comfortable. The construction appears to be a better silicone that is still light and flexible, yet also more sturdy if that makes sense. I am happy so far with my experience. I purchased as there was a holiday sale, and my previous O2 Ring was no longer charging to full capacity, after several years. I had opened a help ticket, yet feared there was no way to reset the previous ring, and I cannot afford to lose data since I am monitoring pulse ox while I sleep (positional obstructive apnea). A working ring will send me an alert which results in a position change, so I need a working ring!
Brink
I had a warranty issue with the aircuff band on my Wellue watch after a couple of months. Support responded quickly, reviewed photos, and shipped a replacement without hassle. Communication was clear and the issue was resolved smoothly. The watch itself has been working well for me, and I’ve been especially happy with the battery life. Overall, a positive experience with both the product and customer support.