Narigmed's watch oximeter yog qhov yooj yim dua rau hnav thiab ntsuas. Tshwj xeeb, cov cuab yeej siv ntshav oxygen hauv cov khoom tuaj yeem siv rau ntau yam kev mob thiab cov neeg ntawm txhua lub suab ntawm cov tawv nqaij, thiab siv los ntawm cov kws kho mob los ntsuas cov ntshav oxygen, pulse rate, respiratory rate thiab perfusion index. Tshwj xeeb optimized thiab txhim kho rau kev tiv thaiv kev tawm suab thiab tsis tshua muaj perfusion ua tau zoo. Piv txwv li, nyob rau hauv random lossis tsis tu ncua txav ntawm 0-4Hz, 0-3cm, qhov tseeb ntawm pulse oximetry (SpO2) yog ± 3%, thiab qhov ntsuas qhov tseeb ntawm pulse tus nqi yog ± 4bpm. Thaum lub hypoperfusion Performance index ntau dua los yog sib npaug rau 0.025%, pulse oximetry (SpO2) raug yog ± 2%, thiab cov mem tes ntsuas qhov tseeb yog ± 2bpm.