Best smart scales in 2025: body composition scales for in-home use

Top Smart Scales for Comprehensive Health Tracking
Smart scales do more than just measure your weight—they provide a deeper insight into your overall health. Equipped with advanced sensors, these scales can analyze body composition, heart rate, and BMI, with all the data conveniently accessible on your smartphone. This makes it easy to track progress and stay on top of your fitness journey.
Many of the leading smart scales also integrate with popular fitness apps, allowing you to view all your health metrics in one place. By syncing with your fitness tracker or smartwatch, these scales create a seamless experience for monitoring weight trends and other vital stats.
To determine the most accurate and reliable options, we conducted in-depth testing. We compared each scale’s measurements against a reference device and evaluated how efficiently the data syncs with smartphones and fitness apps.
After extensive testing, we found that the Withings Body Smart stood out as the best smart scale for most users. However, to maximize its features, you need to be engaged with the Withings ecosystem and app. If you’re looking for alternatives, we’ve compiled a list of other excellent smart scales to help you find the perfect match for your health and fitness goals.
Review of Garmin Index S2 Smart Scale & Garmin HRM-Dual Heart Rate Monitor
Overall Review
The Garmin Index S2 Smart Scale and Garmin HRM-Dual Heart Rate Monitor are high-quality devices designed for fitness enthusiasts who want accurate tracking of their weight and heart rate.
Pros:
✅ Garmin Index S2 Smart Scale:
- Accurately measures weight, body fat percentage, BMI, and skeletal muscle mass.
- Syncs seamlessly with the Garmin Connect app via Wi-Fi.
- Supports up to 16 user profiles, making it great for families or teams.
- Features a high-resolution color display for easy reading.
✅ Garmin HRM-Dual Heart Rate Monitor:
- Provides real-time heart rate data with ANT+ and Bluetooth connectivity.
- Soft, adjustable, and washable strap for comfort.
- Long battery life of up to 3.5 years.
Cons:
❌ The Index S2 Scale runs on 4 AAA batteries, which may need frequent replacement with heavy usage.
❌ The HRM-Dual Heart Rate Monitor does not store heart rate data, meaning it must be connected to a watch or app during workouts.
❌ Currently unavailable on Amazon, which can be frustrating for potential buyers.
Rating: ⭐⭐⭐⭐☆ (4.4/5)
This is a great choice for those using the Garmin ecosystem and looking for accurate health tracking. If you want a rechargeable battery or built-in memory, you might need to explore other options.