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High-quality fitness and sleep tracker with continuous recording. Only 2 mm thin, with touch function for operating apps and programs. Sensors for heart rate, blood oxygen saturation, body temperature and steps. SOS function: automatically calls emergency contacts and sends location data. USB chargable: long-lasting battery with up to 6 days running time. Waterproof. up to 5 ATM and Free app for settings and evaluation Fitness and sleep tracker ring in size 65: for 65 mm finger circumference. Sensors for displaying heart rate, blood oxygen saturation, body temperature and step count. Individual fitness goals for steps, distance and calories burned. Bluetooth 5 for connecting to smartphone and tablet PC. 3 sports selectable for more accurate evaluation: running, walking, cycling. Waterproof waterproof: 5. ATM (50 m) Modern design: only 2 mm thin Determines calories burned, distance, stress level, sleep quality, menstrual cycle and much more. Touch function for controlling and operating many apps and programs Free app for Android and iOS: for data evaluation Menstrual calendar function Colour: silver Inner diameter: 21 mm, outer diameter: 25 mm, width: 8.5 mm, thickness: 2 mm LED light signal with reminder function: drink water, take medicine, appointments, etc. Continuous fitness data recording. SOS function: automatic call and transmission of GPS location data to stored contacts. No subscription and no in-app purchases. Integrated data storage for up to 7 days without synchronisation with mobile device. Material: stainless steel Ring includes charging station with USB cable and instructions in German. Men's ring – also relevant or suitable for: Smart › See more product details; Product description Wear your fitness tracker on your finger in style now - in silver. Awards / reviews / press voices: PC Welt (03/24): \; Product description Wear your fitness tracker on your finger in style now - in silver. Awards / reviews / press voices: PC Welt (03/24): \; Wear your fitness tracker on your finger in style now - in silver. Awards / reviews / press voices: PC Welt (03/24): \