Zewa Advanced Fingertip Pulse Oximeter – SpO₂ & Heart Rate Monitor with OLED Display, Plethysmograph & Perfusion Index – Portable Blood Oxygen Saturation Meter for Home, Sports & Travel

Health care
It is safe to use to help manage your health.

Great Features… Until the Numbers Send You to the ER
This finger pulse oximeter has a lot going for it. It looks nice, feels solid, and opens wide enough to fit larger fingers without feeling like a medieval torture device. The screen is bright, easy to read, and switching the display direction is simple.When oxygen levels are above 91, it behaves just fine. Readings are steady and reasonable for casual monitoring.The problem starts when levels drop.Once readings hit 91 or below, this device consistently reads about 3 points too low. When my actual oxygen level was around 90%, this meter showed 87% — which is the point where doctors stop saying “monitor at home” and start saying “go to the ER.”And that’s exactly what happened. Based on these readings, I was told to go to the ER. I brought this meter with me and compared it back-to-back on the same finger with hospital monitors. My oxygen never dropped into the 80s the entire time, and I didn’t need supplemental oxygen after all.Maybe this was just a bad unit. Perhaps. But I’m not buying another one to find out.One or two points off? Annoying. Three points off at that range? Expensive.Bottom line: comfortable, easy to use, and fine when your oxygen is clearly normal. But when readings are borderline and accuracy matters, this device leans a little too hard into worst-case storytelling.Good for trend tracking. Not great when a few points can send you on an unnecessary ER adventure.

Honestly pumped to have this in my medical kit. Lovely tool.
I’ve always wanted to own one of these and I honestly feel so lucky to get my hands on this. It sounds strange to call a medical tool ‘pretty’ but it really is — the screen is bright and sharp, really clean and easy to read, and it feels well-made and substantial in your hand, not at all cheap or delicate. Really nice smooth, white chassis, just like you see at the doctor’s office, and from what I call tell just as accurate. I’m an athlete who would like to start charting my oxygen levels during workouts for educational purposes (also to track improvements and make sure I’m breathing through all my exercises correctly) but beyond just a hobbyist’s satisfaction with this, I’m also the household medic and keeping tools updated/on hand/good quality is a full-time that requires a lot of patience and revenue.I’m going to go ahead and be that nerd who nerds out over the instructions given, but I feel it’s important to compliment them as more and more companies keep cost-cutting and refuse to include printed-out instructions for their products. I actually laughed in appreciation when I unfurled the instruction page on this. Really informative, not only tells you how to operate the monitor but also how to read it correctly and interpret the data. In terms of ease of access, the monitor is ready to go pretty much right out of the gate, but for those curious people out there like myself, the extra instructions are delightful. I can’t compliment the company enough for including them.I’m not a licensed physician, so I want to make the disclaimer that what I observe from it is based on patterns and common sense. I notice a one-ish point disparity between home and the doctor’s office (I consistently come in at 98 saturation at rest at the office; this one consistently reads at 96-97) but since a lot of factors are in play, I wouldn’t necessarily count that as an issue especially with the possibility of environmental changes and/or user error. Accuracy within a point or two is just fine for pedestrian purposes and still tells me exactly what I need to know. Value is incalculable to me, this is a nice unit identical to that in medical office and I’m thrilled to have it in my collection, and it functions — to my eye and my experience — exactly as it’s supposed to. I’m looking forward to doing some research with it.You can’t go wrong with this, I think it’s incredibly reasonable for the price and a solid buy for your medical kit.

Gets the job done
I about a year ago bought a blood pressure monitor from this company. When I was looking for a pulse oximeter and saw that this company made it. I decided to give it a chance since I’ve been very happy with their blood pressure monitor. I’m happy to report that this pole sock cylinder works just as expected, giving me readings which match my previous expectations. I think that this is a pretty nice size for one and not overly heavy because it does have a nice big readout which for my aging eyes is a pleasant thing to see. The battery also seemed to last forever which I think is a great thing. I feel like this is giving me good consistent readings and I do not see very much that I am unpleased with. Overall. I’m very happy with this purchase and I think you would be as well