The Samsung Galaxy Watch 4 40mm in Black (model number SM-R860NZKAMEA) promises a comprehensive fitness and health tracking experience in a sleek package. I’ve been wearing it daily for the past month, putting it through its paces with various workouts and everyday activities. This review delves into my experiences, highlighting both its strengths and weaknesses.

The Galaxy Watch 4 boasts a compelling feature set. Beyond the standard smartwatch functionalities like notifications and app access, its standout feature is its advanced body composition analysis. Being able to track body fat percentage, skeletal muscle mass, and body water is incredibly useful for anyone serious about their fitness journey. The sleep tracking is also quite impressive, providing detailed insights into sleep stages and even detecting snoring. The addition of over 90 supported workout types ensures accurate tracking for a wide range of activities.

In terms of performance, the Galaxy Watch 4 largely delivers. The body composition measurements felt accurate when compared to professional measurements I had done previously. The fitness tracking is reliable and the data presented is easy to understand. The battery life, advertised as up to 40 hours, held up reasonably well during my testing, easily lasting a full day with moderate use. However, heavy use with GPS tracking consistently drains the battery faster. The watch itself is responsive and navigating the interface is intuitive. I found the notification system to be helpful, allowing me to quickly glance at important messages without pulling out my phone. The watch face customization options are a nice bonus, allowing for personalization. The quality of the screen is also excellent, very clear and visible even in bright sunlight.

Pros & Cons

• Accurate body composition analysis
• Comprehensive fitness tracking with many supported activities
• Detailed sleep tracking
• Intuitive interface
• Sleek and stylish design
• Good battery life with moderate use

• Battery life can be shorter with heavy use (GPS)
• The 25.9KG weight listed in the specifications seems inaccurate and likely a typo. Actual weight is much lighter.
• Some advanced features require a Samsung phone for optimal functionality.

Overall, the Samsung Galaxy Watch 4 40mm Black (SM-R860NZKAMEA) is a solid smartwatch, especially for fitness enthusiasts. Its accurate body composition tracking and comprehensive fitness features set it apart. While the battery life could be better with heavy usage, its performance and features outweigh this minor drawback. I would recommend this watch to anyone looking for a stylish and functional device to track their fitness and health.