3 stars: It frequently starts to measure and then stops. I have tried re- boot with little success. It usually starts fine begins to show blood gas etc and then says it is searching and then it tells me to try again. I always have my finger in the correct place. It completes the diagnosis about one time in ten. I don't move my finger when measuring
4 stars: It gives accurate pulse readings, I double checked it with my gear active. I'm not sure how accurate the O2 readings are, but I assume they're within range. I downloaded this app to monitor myself because I caught covid. It has been helpful to keep my wife at ease about my condition. So far, so good.
5 stars: This app is a godsend. My Galaxy note 8 fitness app for some reason never would measure oxygen content. Waited through many updates, but the function never came. This app solved the problem with no strange extraneous permissions necessary. Another good tool in the fight against CCPvirus!
5 stars: This is an excellent app and quite accurate. Found out Covid affects the blood oxygen level and causes hypoxia which is dangerous. You could have a covid pneumonia and not realize it until too late. It is not the normal symptoms of chest pain and breathlessness. It is blood oxygen levels.
4 stars: ok, now the measure result almost always 95% with few exceptions. May be it is actually correct, i have nothing to compare with. Also this app lacks Google Fit sync feature.
5 stars: Does what it says. If your ph...