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£182.20
Samsung Galaxy Ring2024, Temperature sensor, Built-in heart rate monitor, Pedometer, Sleep measurement, Blood pressure measurement, Stress level, Heart Rate Variability, Blood oxygen, 12£87.99
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£239.00
‌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£245.00
‌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£28.99
‌Haale II Smart Ring2025, Temperature sensor, Built-in heart rate monitor, Pedometer, Sleep measurement, Stress level, Heart Rate Variability, Blood oxygen, 7, 8, 10, 25(3)£17.60
‌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£19.03