Qardio Bluetooth Pulse Oximeter and Smart SpO2 Blood Oxygen Sensor. Track Results Over Time with the Free Smartphone App for iOS and Android.

Listen Up!!!This oxy meter saved a life. I am a caregiver, for an 63 year old veteran man. Who had put off going to the Dr. He could not breath, felt faint. I put this on his finger, and his Oxygen was way too low. I had just received this in the box, and was trying it out. Because of the reading I got, I called Paramedics, they took a reading, and said his heart was not pumping right, oxygen to low. So if I had not gotten this Oxy meter he may have died. Turned out he has Heart Failure. Which he would have never known, if I hadn't put this on his finger and got this reading. PLEASE BUY THIS, LIFE SAVING METER. You CAN GET READING ON YOUR PHONE TO.So small and worth every penny

Works well and records results on iPhone in Qardio app.

Most of the time the these devices either don’t connect or take days to record your values. With this one you can see the data record instantly which is a great feeling. It gets the job done and was a great price point. It was very easy to set up and I have no complaints. The accuracy seems inline with other comparable devices.

It is used every day. The accuracy I don’t know.

Great unit, works well, fast service.

I received this oximeter & it performed perfectly then it began not working properly so I gave it a bad review then I got to thinking about trying to reboot it by removing & replacing the batteries I have not had an issue since.

I purchased this Qardio pulse-oximeter to replace another brand I purchased a couple of years ago. It is a real benefit to have the readings upload to my iPhone. This is compliment to my Qardio BP Cuff, scale and thermometer. I think it the purchase of all four of these Qardio devices is well worth the price.

For two weeks I have been trying to get support from Qardio. I contacted them on "Contact Us" on their own website b/c the Support page disappeared.The Quardio app has disappeared in the APP store, which renders the devices useless to update other health apps.In addition, I ordered 2 items directly from Qardio and was sent an email saying tracking info would be sent in 48 hours. It has been 3 weeks and after contacting them on the "Contact Us" over 5 times, I have yet to get ANY response.So in summation at this time, I have the QardioArm and QardioSPO2 which both require the Qardio app which no longer appears to be available.And I have two items, QARDIOTEMP 2 and QARDIOBASE X thatI ordered directly from Qardio which have been paid for with a confirmation email saying tracking information will be sent within 48 hours and after 3 weeks, NO tracking info and 5 PLUS attempts to contact Qardio and no response, and the support page is non existent!If there is a problem with an order, I expect the seller I gave my money to would answer their own "Contact Us" to inform the buyer of why there is a delay and when the item would be delivered.But Qardio has no heart beat it appears.