Fitbit Versa 4

Battery Life: Up to 6 days with fast charging (1 day of power in about 12 minutes).Fitness Tracking: Built-in GPS, 40+ exercise modes, and Daily Readiness Score.Health Monitoring: 24/7 heart rate, SpO2 (blood oxygen), sleep tracking stages, and stress management.Smart Capabilities: Google Wallet, Google Maps, and smartphone call/text notifications.Compatibility: Works smoothly with both Android and iOS devices