Editorial roundup · Updated 2026

Best Scale for Tracking Lean Mass on GLP-1s

Rapid weight loss on a GLP-1 can cost you muscle if you're not paying attention. These are the scales precise enough to see it happening.

How we picked

We prioritized segmental (limb-by-limb) body composition and daily trend accuracy — the two features that actually catch muscle loss early.

  1. #1 Editor's pick
    Body Scan — Withings

    Withings

    Body Scan

    Segmental body composition + 6-lead ECG — medical-grade at home

    4.7

    $399

    • Segmental readings (leg vs arm vs trunk fat/muscle)
    • 6-lead ECG built in — screens for atrial fibrillation
    • Best-in-class Health Mate app with automatic Apple Health / Google Fit sync
    • Expensive vs basic smart scales
  2. #2 Top rated
    Smart Scale P3 — Eufy

    Eufy

    Smart Scale P3

    3D virtual body model + 16 measurements

    4.4

    $79.99

    • The 3D avatar is genuinely useful for visualizing change over time
    • Chrome-tempered glass looks and feels premium
    • Wi-Fi + Bluetooth (no phone required near the scale)
    • Eufy Life app is decent but not as polished as Withings

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