One of the best fitness products for tracking swimming workouts is the Apple Watch. It has a built-in swim tracking feature that can accurately measure distance, laps, and calories burned while swimming. Additionally, it provides data on stroke type, pace, and heart rate. Other notable fitness products for tracking swimming workouts include Garmin Swim 2, Fitbit Versa 3, and Samsung Gear Fit2 Pro, which offer similar features specifically designed for swim tracking. Ultimately, the best choice depends on individual preferences and requirements.