Oura Ring 4 Smart Ring2024, Temperature sensor, Built-in heart rate monitor, Pedometer, GPS, Sleep measurement, Blood oxygen, 6, 7, 8, 9, 10, 11, 12, 4, 5, 13, 14, 15£199.99
Samsung Galaxy Ring2024, Temperature sensor, Built-in heart rate monitor, Pedometer, Sleep measurement, Blood pressure measurement, Stress level, Heart Rate Variability, Blood oxygen, 12£146.97
RingConn Gen2 Smart Ring2024, Temperature sensor, Built-in heart rate monitor, Sleep measurement, Stress level, Heart Rate Variability, Blood oxygen, 2.9 mm, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 15£139.00
‌Ultrahuman Ring Air Smart Ring2023, Temperature sensor, Built-in heart rate monitor, Sleep measurement, Heart Rate Variability, Blood oxygen, 2.8 mm, 6, 7, 8, 9, 10, 11, 12, 13, 14£240.00
‌Oura Ring Gen3 Horizon Smart Ring2021, Temperature sensor, Built-in heart rate monitor, Sleep measurement, ECG, Stress level, Heart Rate Variability, EDA, Blood oxygen, 2.55 mm, 6, 7, 8, 9, 10, 11, 12, 13£349.00
‌R1000 Smart Ring2024, Temperature sensor, Built-in heart rate monitor, Sleep measurement, Stress level, Heart Rate Variability, Blood oxygen, 2.8 mm, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 15£26.13
‌ODO 3 Smart Ring 2021, Temperature sensor, Built-in heart rate monitor, Sleep measurement, ECG, Stress level, Heart Rate Variability, EDA, Blood oxygen, 2.55 mm, 6, 7, 8, 9, 10, 11, 12, 13£22.62