Based on the user reviews of the ECG App by Fitbit on Google Play Store, here are three pros and three cons: **Pros:** 1. Accurate readings: Users praise the app for providing accurate ECG readings and detecting irregular heart rhythms. 2. Easy to use: The app is user-friendly and simple to operate, even for those without medical backgrounds. 3. Convenient tracking: Users appreciate the ability to track their heart health and receive notifications for unusual rhythms. **Cons:** 1. Limited features: Some users feel the app lacks advanced features, such as personalized recommendations or guidance. 2. Battery drain: Some users experience significant battery drain when using the app, which can be inconvenient. 3. Calibration issues: A few users report issues with calibrating the app, which can lead to inaccurate readings. Please note that these conclusions are based on a summary of user reviews and may not reflect the full range of opinions or experiences.