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I. Introduction
A. Definition of a Smartwatch
B. Importance of Smartwatches for Fitness Enthusiasts
II. Top 5 Smartwatches for Fitness Enthusiasts in 2021
A. Apple Watch Series 6
1. Features
2. Pros
3. Cons
4. Price
B. Garmin Forerunner 945
1. Features
2. Pros
3. Cons
4. Price
C. Fitbit Sense
1. Features
2. Pros
3. Cons
4. Price
D. Samsung Galaxy Watch 3
1. Features
2. Pros
3. Cons
4. Price
E. Polar Vantage V2
1. Features
2. Pros
3. Cons
4. Price
III. Comparison of the Top 5 Smartwatches
A. Design and Build Quality
B. Fitness Tracking Features
C. Health Monitoring Features
D. Battery Life
E. Software and User Interface
IV. Conclusion
A. Recap of Top 5 Smartwatches
B. Recommendations
C. Final Thoughts
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