Fitness trackers influence exercise habits by promoting accountability and goal-setting. They provide real-time feedback on metrics like heart rate, steps, and calories burned, motivating users to stay active. This data helps individuals monitor their progress and adjust workouts accordingly. Studies show that users often increase their physical activity levels due to the awareness generated by these devices. Social features, challenges, and reminders can further enhance user engagement. Overall, fitness trackers can lead to healthier behaviors and a deeper commitment to fitness routines.