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Xiaomi Body Composition Scale S400
#4 Overall wi-fi Updated 16 August 2026

Xiaomi Body Composition Scale S400

The budget smart pick — clean design, solid metrics and Mi Fitness sync at a low price

THE undig SCORE — 3 SOURCES, UNTANGLED
83
Out of 100

Key characteristics

Capacity
Up to 180 kg
Metrics
Weight, body fat, BMI
Sync
Wi-Fi / Bluetooth
Power
Battery / USB-C

Highlights

  • Body composition metrics via the Mi Fitness app
  • Clean minimalist design with a hidden display
  • Syncs with Xiaomi and Zepp Life
  • Very affordable

Our take

Xiaomi's S400 is the budget scale that doesn't feel cheap: the minimalist glass design looks great, it covers the core body-composition metrics, and it syncs to Mi Fitness (and Zepp Life). The ecosystem is best if you already use Xiaomi wearables and the metrics are estimates, but for the price it's excellent.

Pros & Cons

Pros

  • + Very affordable
  • + Clean, minimalist design
  • + Core composition metrics
  • + Good with Xiaomi wearables

Cons

  • Best inside Xiaomi's ecosystem
  • Metrics are estimates
  • App can need Zepp Life

Review sources

We aggregate scores from these sources. Each source is weighted by credibility tier.

T
TechRadar Expert · Tier B
84
T
Trusted Reviews Expert · Tier B
83
C
CNET Expert · Tier B
82
How we score

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