Astrum_Connect is a free lifestyle app developed by TENG JINDA for Android 9.0 and above. This app is specifically designed for SW300 smartwatch users to help them track their fitness activities and monitor their heart rate.

Upon opening the app, users can easily navigate through various features such as tracking their daily steps, distance covered, and calories burnt. The app also provides real-time heart rate monitoring, allowing users to keep their heart rate in check during workouts.

In addition to fitness tracking, Astrum_Connect offers sleep monitoring, which tracks the user's sleep patterns and provides a detailed report on the quality of their sleep. The app also has a sedentary reminder, which reminds users to move after a certain period of inactivity.

Overall, Astrum_Connect is a great app for SW300 smartwatch users who are looking for a reliable fitness tracker. It provides accurate data and detailed reports on fitness activities and heart rate monitoring, making it an essential tool for anyone looking to improve their fitness level.