What can a smart scale measure besides weight?

Most smart scales provide estimates for body fat percentage, muscle mass, bone mass and body water. Several also measure visceral fat, while the most advanced can analyse fat and muscle mass separately in arms, legs and the upper body, and some record heart rate and other measurements related to cardiovascular health.

How should I weigh myself to get comparable results?

Fluid balance, food intake, exercise and the timing of weighing all affect the result, so you should weigh yourself under approximately the same conditions each time and use the figures to track changes over time.

What is the difference between a Wi-Fi scale and a Bluetooth scale?

Smart scales with Wi-Fi can normally transfer results to the app automatically after weighing, while Bluetooth scales more often require the phone to be nearby, and on some models the app must be open for the data to transfer.

How is the test scored?

Each scale is scored on measurement accuracy and stability (25 points), body analysis (20), app and integrations (15), connectivity and automatic transfer (10), user-friendliness and display (10), build quality and design (10), and price and value (10).

Smart Scales – Best in Test 2026 – Top 10 Smart Bathroom Scales | Hardworkout Magazine

Key takeaways

- Smart scales estimate body composition with bioelectrical impedance, and the figures should be read as a trend over time rather than as an exact value on any given day.

- The Withings BodyFit wins the 2026 test with BIS across 13 frequencies, 50-gram precision and segment analysis of fat and muscle mass in six body zones.

- Huawei Analysis Scale 3 BT is the budget pick at 599 kroner, with 50-gram precision, up to ten user profiles and up to 300 days of battery life.

- Wi-Fi scales transfer measurements to the app automatically after weighing, while Bluetooth models often require the phone to be nearby or the app to be open.

- The products in this list have not been physically tested; the ranking is based on specifications, external tests, customer feedback and price.

Smart scales have become a useful tool for tracking trends in body composition – not just today's weight.

We have evaluated the 10 best smart scales on the market in 2026, focusing on accurate measurements, good apps, and stable transmission. Modern bathroom scales can measure much more than body weight, and several provide detailed information about, among other things, fat and muscle mass.

At the bottom of the article, you can read more about the criteria in the test, how smart scales measure body composition, and what you can use the results for.

Have the scales in this test been physically tested?

We at Hardworkout.no are committed to ensuring that the tests are independent and credible. The products in this list have not been physically tested by us, and the evaluation is based on the product's features, specifications, external tests, customer feedback, and price.

PS: Prices and selection may vary from day to day. The prices we provide are recommended prices. Online stores often have good offers, and the products may be on sale at a lower price than what is stated here.

How do we earn money on this test?

By shopping through the links in the test, we receive a small commission from the stores, which helps us continue to publish quality-conscious tests and articles. You pay the same reasonable price as the stores state.

We therefore greatly appreciate if you use the links in the article.

- Best in test: [Withings BodyFit](https://hardworkout.no/withings-bodyfit-toppliste)

- Best premium model: [Withings Body Scan 2](https://hardworkout.no/withings-bodyscan2-toppliste)

- Best budget model: [Huawei Analysevekt Scale 3 BT](https://hardworkout.no/Huawei-Analysevekt-Scale3BT)

The Criteria for Testing Smart Scales

Smart scales vary in both measurement methods, features, and the level of detail they provide about body composition.

Some bathroom scales use BIA with electrodes under the feet, while more advanced models use multiple measurement frequencies, hand sensors, and segment analysis.

Measurement Accuracy and Stability – 25 points

- How small weight increments the smart scale supports, how consistently it measures from day to day, and how reliable the BIA estimates are over time.

- We reward precise readings, quick locking of the measurement, and that repeated weighings do not vary unnecessarily.

Body Analysis on Smart Scales – 20 points

- How much useful information you actually get: body fat percentage, muscle and bone mass, water percentage, visceral fat – and possibly pulse/HRV, ECG, or segment measurement.

- Extra points for practical modes such as guest, baby, pregnant, and athlete.

App and Integrations for Smart Scales – 15 points

- The quality of the app (graphs, goals, reminders) and how well data is shared with Apple Health, Google Fit, Garmin, etc., so that everything is collected automatically.

Connectivity and Automatic Transfer – 10 points

- How easily measurements are sent without extra steps.

- Wi-Fi usually provides automatic transfer in the background, while Bluetooth more often requires the phone to be nearby or the app to be opened regularly.

User-Friendliness and Display on Smart Scales – 10 points

- How easy it is to get started, how clear the display is, and how quickly useful information appears after weighing.

- This also includes automatic recognition of users and handling multiple profiles in the same household.

Build Quality and Design – 10 points

- Choice of materials, platform size, anti-slip features, and how stable the scale stands on the floor.

- A solid construction provides a better experience and fewer measurement errors.

Price and Value – 10 points

- What you get for your money compared to nearby competitors.

What are smart scales – and what do they measure?

Smart scales are bathroom scales that connect to an app via Bluetooth or WiFi, and can calculate body composition using bioelectrical impedance.

In addition to body weight, most smart scales provide estimates for body fat percentage, muscle mass, bone mass, and body water. Several bathroom scales also measure visceral fat, while the most advanced can analyze fat and muscle mass separately in arms, legs, and the upper body. Some can also record heart rate and other measurements related to cardiovascular health.

How accurate are the body composition estimates?

The measurements of body composition are estimates and should primarily be used to track changes over time.

Fluid balance, food intake, exercise, and the timing of weighing can affect the results. To get the most comparable results from smart scales, you should weigh yourself under approximately the same conditions each time.

Wi-Fi or Bluetooth – which connection should you choose?

Smart scales with WiFi can normally transfer the results to the app automatically after weighing.

Smart scales with Bluetooth more often require that the phone is nearby, and on some models, the app must be open for the data to be transferred.

![weight loss smart scales](https://hardworkout.no/wp-content/uploads/2019/07/AdobeStock169433523.jpeg)

Sources:

Bioelectrical impedance analysis – [Wikipedia](https://en.wikipedia.org/wiki/Bioelectricalimpedanceanalysis)

Bioelectrical impedance analysis instruments: how do they differ, what do we need for clinical assessment? – [National Library of Medicine (NIH)](https://pmc.ncbi.nlm.nih.gov/articles/PMC12337901/)