Inspire 3 is the tracker that helps you find your energy, do what you love and feel your best. All you have to do is wear it.Operating temperature: 0° to 40°C Move more: Daily Readiness Score(1), Active Zone Minutes, all-day activity tracking and 24/7 heart rate, 20+ exercise modes, automatic exercise tracking and reminders to move Stress less: always-on wellness tracking, daily Stress Management Score, mindfulness sessions, relax breathing sessions, irregular heart rhythm notifications(2), SpO2(3), menstrual health tracking, resting heart rate and high/low heart rate notifications Sleep better: automatic sleep tracking, personalized Sleep Profile(1), daily detailed Sleep Score, smart wake vibrating alarm, sleep mode Comfortably connected day and night: calls, texts & smartphone app notifications(4), color touchscreen with customizable clock faces, super lightweight and water resistant to 50 meters, up to 10 day battery life(5) Includes a 6-month Premium membership complete with personalized insights, advanced analytics and more (New & returning Premium users only. Must activate trial within 60-days of device activation. Content and features may change)