FITTR HART X2 Smart Ring, 8+ Days Battery, Fitness Tracker for Sleep, Recovery, Stress, Workout, Heartrate, Calories, Smart Ring for Men & Women, Buy Sizing Kit First, Titanium (Gunmetal Black, 13) FITTR HART X2 Smart Ring, 8+ Days Battery, Fitness Track

- Find Your Perfect Fit: Choose the right size with the FITTR HART X2 Smart Ring. Start by purchasing a sizing kit, wear it for 24 hours, and pick your size from 6-13. Available in 3 stylish colours—Gunmetal Black, Sterling Gold, and Silver. Smart ring for men and smart ring for women. - New-Age Charging Case: Charge once, stay powered for up to 20 days. The FITTR HART X2’s charging case can recharge your smart ring up to 5 times, ensuring continuous fitness tracking. - Sleep Score: Track your sleep stages—Deep Sleep, REM, Light Sleep, and Awake. The smart ring provides insights into your total sleep duration, heart rate, and restfulness for improved sleep quality. - Recovery Score: Get personalized recovery insights by tracking HRV, Sleep, and Resting Heart Rate (RHR), helping you optimize rest and improve overall health. - Heart Rate Variability (HRV): Monitor how your body handles stress and recovers with continuous HRV tracking. Understand your body’s resilience for smarter workout and rest decisions.