A waterproof fitness tracker is a great gift for women who love synchronized swimming and want to track their progress. This fitness tracker is designed to withstand water immersion, making it suitable for use in the pool. It can track various activities such as swimming, steps, distance, calories burned, and sleep quality. The tracker has a clear and easy-to-read display, allowing women to monitor their performance in real-time. It also has additional features such as heart rate monitoring, sedentary reminders, and smartphone notifications. With a comfortable and adjustable strap, this fitness tracker can fit different wrist sizes, providing a secure and comfortable fit during swimming sessions.