Zeerkeer Fitness Tracker Smart Watch with Heart Rate/Blood Pressure/Blood Oxygen/Body Temperature/Sleep Monitor, IP68 Waterproof Activity Tracker Watch for Women Men

It was weird when I used to measure the O2, HR, Blood Pressure, all the time I saw almost the same results.That was kind of weird for me, only until I started noticing something bad about this device.1.- When walking on the treadmill my HR always kept in the same range ( between 80 to 90 ) which is not true, because after doing my cardio for more than 20 minutes, it's impossible it keeps in that range. I compared it in my treadmill and my HR achieved the minimum 110 to maximum 160.2.- the O2 and blood pressure, wow, this was the most disappointing and frustrating thing. this is what I did: I did several testings by measuring them with NO watch wore in my wrist!, the outcome? it showed fake results.It is impossible that by no wearing the watch, it keeps showing good results on O2, HR and blood pressure.so not only frustrating, I felt I loose my money because this watch works only for knowing the timeI need to State something: This is my case after several months of using it and testing it, it was the same thing since the beginning, not sure if this is happening in general

I could never get the ecg to work.

I had this product for 2 months then 1 side of the band broke I sticked it with some epoxy. Then the opposite side of the band broke tryed to stick the other side but is not working. The aluminum frame is cheap thus the pins of the band can break the frame. Was a good product otherwise but now its useless going to have to but a different one this time.

It only worked for a few days. The battery life is rather good, but now that the battery went dead, I tried to recharge it. All I can see is a small green spark on the back of the unit, and even though the magnet latches on, it downs seem to charge the unit. I had it plugged in for 12 hours now, and the unit is still not turning on. I must have gotten a defective model. My daughter is disappointed. I’m taking her to Costco today to look at a Fitbit.

I inadvertently ordered this watch. When I received the notification I figured I might as well try it. It feels like a ten dollar watch. Nothing great about it. I ended up gifting it as I would rather do that than pay the almost $8 to return. It was my fault for ordering it but I'll be more diligent when I am on Amazon. Totally disappointed.

I love this item. I don't like the charging system, but the item is great.

Instructions were not very good.

Works good

No mide correctamente ni la presión arterial ni el ritmo cardiaco, lo cual hace completamente inútil el dispositivo...