The Google Pixel Watch 3 is designed for performance with advanced fitness from Fitbit1 2; the 45mm screen is twice as bright and 40% larger than before making it easier to see your stats and info1 Maximize your performance with advanced running features; build custom run workouts and get real-time guidance and advanced form tracking3 Enhance your run routine with Fitbit Premium; Google AI uses your goals past runs and readiness to power personalized run recommendations3 Know what your body is ready for each day with readiness; it uses sleep resting heart rate and heart rate variability to show if you're ready to take on a workout or prioritize recovery3 Cardio load measures how hard your heart works so you can see how hard you've pushed; compare trends to see if you're under- or over-training3 -