10 Best Body Fat Scales 2025 in the United States

The RENPHO Bluetooth Body Fat Scale is a solid choice for those wanting more than just weight tracking. It measures 13 body metrics, including body fat, BMI, muscle, and bone mass, which gives a fuller picture of your health. The scale connects via Bluetooth to the Renpho Health App, which syncs with popular fitness platforms like Samsung Health and Apple Health, though it currently doesn't support iPhone 17 series devices. It supports profiles for up to 20 users, making it ideal for families or couples who want to track their progress separately.

The scale has a clear LED display with backlighting for easy reading, and it automatically calibrates to ensure accurate results. Its weight capacity of 396 lbs fits most users, and the tempered glass design with four sensors feels sturdy and looks modern. Setup is straightforward through the app and requires a flat, hard surface for best accuracy.

While the scale offers many useful measurements, those requiring medical-grade precision might want to consider more advanced devices. It depends on the smartphone app for syncing detailed data, so if you’re not comfortable with apps or don’t have a compatible phone, some features might be less useful. Additionally, it uses AAA batteries that will need occasional replacement. This RENPHO scale is an affordable, easy-to-use tool that tracks multiple body health metrics and supports multiple users, with valuable app integration despite some minor compatibility and battery maintenance considerations.

The Runstar Smart Scale is designed for those interested in tracking their body composition with precision. One of its standout features is the ability to measure 28 different metrics, including body fat, muscle mass, and BMI. This is particularly beneficial for fitness enthusiasts who want an in-depth analysis of their health and progress. With its intuitive Starfit APP, users can easily track measurements over time, which is a great way to stay motivated on fitness journeys.

The full-color TFT LCD display is another plus, making it easy to read results immediately after weighing yourself. The scale's ability to accommodate unlimited user profiles also makes it an excellent choice for families or shared living situations, as up to 24 profiles can be managed through a single app.

There are a few drawbacks to consider. The scale requires Bluetooth pairing with the Starfit APP before use, which may be a hurdle for less tech-savvy consumers. Also, while the measurement accuracy is generally good, it's worth noting that the athlete mode may be necessary for those with a fitness background to get the most accurate data. The design is robust but somewhat bulky, which might be a concern for those with limited bathroom space.

The Garmin Index S2 is a smart body-fat scale designed for adults who want detailed insights into their health beyond just weight. It measures weight, body fat percentage, BMI, skeletal muscle mass, bone mass, and body water percentage, giving a well-rounded view of your body composition. Its measurements are known to be quite accurate for home use, especially when paired with the Garmin Connect app, which syncs data via Wi-Fi. This connectivity allows you to track trends over time and manage goals easily on a smartphone.

The scale supports up to 16 user profiles, making it a good fit for families or groups who want individual tracking. The high-resolution color LCD screen is sharp and intuitive, showing more info than basic scales. Powered by 4 AAA batteries, it can last up to 9 months, which is convenient and reduces frequent replacements. The design is sleek and modern, with carpet feet to improve stability on soft floors, and it weighs about 4.4 pounds, so it’s easy to move if needed.

The scale requires a Wi-Fi connection and the Garmin Connect app, which may add a small setup step if you’re not comfortable with apps. The Index S2 is a solid choice for those looking for a smart, multi-metric body scale with reliable accuracy, multiple user support, and good app integration, though it might feel a bit technical for users who prefer simple, no-frills devices.