WITHINGS Body Smart

What it is

A Wi-Fi and Bluetooth smart scale that measures weight, body fat percentage, heart rate, and metabolic rate—all validated in clinical settings. It's for anyone serious about tracking body composition trends beyond the number on the scale.

Why it keeps winding up in carts

Nearly 40,000 people have rated this, and it holds a solid 4.3 stars, suggesting real staying power in a crowded category.

Weighs you down to the gram. And then some.

Smart scale that actually justifies the smart part.

This isn't just a scale—it's a body composition snapshot you can repeat every morning.

Withings partnered with hospitals to clinically validate the Body Smart, so the metrics it gives you (weight, fat percentage, heart rate, metabolic rate) aren't marketing math.

What we looked at

• 01
  Precision Tracks weight to within 50 g

  That's granular enough to catch real shifts without noise. You'll see your high-resolution color display update reliably, day to day, so trends become visible instead of invisible.

• 02
  What You're Actually Measuring Weight, body fat %, heart rate, metabolic rate estimate

  This moves past scale weight alone. Heart rate at weigh-in gives you a cardiovascular snapshot; body composition and metabolic rate help you understand whether you're building muscle or losing fat—the distinction that matters if you're training or dieting intentionally.

• 03
  Connectivity Wi-Fi and Bluetooth, Apple Health compatible

  Data syncs automatically to your phone and into Apple Health so you're not manually logging. That seamlessness is what keeps people using a scale instead of abandoning it after month two.

Specification & fit

• Who it is forBest for people already committed to tracking fitness or body composition—folks who want their scale to do more than whisper sad numbers, and who'll actually use heart rate and metabolic rate data.
• A Clinical Scan Of Your HealthBody Smart, developed in collaboration with leading hospitals and clinical institutions, has been clinically validated.
• Achieve Your Weight Goals FasterReliably track your weight to within 50 g and view your weight trends directly on the scale's high-resolution color display.
• Increase Muscle Mass FasterIncrease muscle mass faster by analyzing body composition to tailor efforts.
• Follow Your HeartEvaluate your heart rate at every weigh-in, a good indicator of overall cardiovascular fitness.
• On the labelSold on Amazon by Withings. Price and availability are set by Amazon and change without notice.