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Ultrahuman Ring Air Smart Ring
14, 2023, 2.8 mm, Temperature sensor, Built-in heart rate monitor, Sleep measurement, Heart Rate Variability, Blood oxygen
from
$417.34
Oura Ring 4 Smart Ring
2024, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, Temperature sensor, Built-in heart rate monitor, Pedometer, GPS, Sleep measurement, Blood oxygen
from
$166.63
Samsung Galaxy Ring
14, 2024, Temperature sensor, Built-in heart rate monitor, Pedometer, Sleep measurement, Blood pressure measurement, Stress level, Heart Rate Variability, Blood oxygen
from
$524.26