Fitbit Versa 4
Heart rate tracking Active Zone Minutes Built-in GPS Cardio Fitness Score Daily Readiness Score Automatic exercise tracking Exercise modes Water resistant Workouts on your phone Steps, distance & calories SpO2 (blood oxygen) tracking Resting heart rate High & low heart rate notifications Heart rate variability Skin temperature variation Breathing rate Wellness report Blood glucose tracking (in app only) Menstrual health tracking Sleep tracking & sleep stages Sleep Profile Sleep Score Smart Wake alarm Stress Management Score Mindfulness sessions Relax breathing sessions Reflections On-wrist Bluetooth® calls Call, text and app notifications Alexa Built-in Google Maps Google Wallet Fitbit Pay Find My Phone Always-on display mode Do not disturb & sleep mode Fast charging 6+ day battery Thin, lightweight design Color touchscreen Clock faces & accessor