Last updated: 1 oct 2026
Health disclaimer: Smart scales estimate body composition and are not medical devices for diagnosis. Do not use body composition features if you have a pacemaker or other implanted electronic device, or if you are pregnant, unless your doctor says it is safe.
Our top picks
The Withings Body Comp is the best smart scale of 2026 for most people who want detailed, consistent body composition data, while the Renpho smart scale is the best value at around $25–$40. If you already use a Garmin watch, the Garmin Index S2 is the easiest fit.
A smart scale does more than show your weight. It estimates body fat, muscle and water, then syncs everything to an app so you can see trends over weeks and months. That matters during weight loss, because the scale number alone can hide fat loss when you are building muscle.
We compared five popular scales using independent test results, published specs and current prices. Prices are typical US prices in late September 2026 and change often on Amazon and other retailers.
- Best overall: Withings Body Comp
- Best mid-range: Withings Body Smart
- Best value: Renpho Smart Scale (Elis 1 / ES-CS20M)
- Best for Garmin users: Garmin Index S2
- Best for families: Eufy Smart Scale P3
Smart scales compared
| Scale | Typical price (US, Sept 2026) | Connectivity | Key metrics | Works with | Best for |
|---|---|---|---|---|---|
| Withings Body Comp | About $200–$230 | Wi-Fi + Bluetooth | Body fat, muscle, water, bone, visceral fat and more | Withings app, Apple Health, Google Fit and many fitness apps | Most detailed data |
| Withings Body Smart | About $100 | Wi-Fi + Bluetooth | Body fat, muscle, water, visceral fat | Withings app and many fitness apps | Premium features for less |
| Renpho Smart Scale | About $25–$40 | Bluetooth | 13 metrics, including body fat and muscle | Apple Health, Google Fit, Fitbit, Samsung Health, Garmin Connect | Best value |
| Garmin Index S2 | About $150–$200 | Wi-Fi + Bluetooth | Body fat, muscle, water, bone | Garmin Connect | Garmin watch owners |
| Eufy Smart Scale P3 | About $80 | Wi-Fi + Bluetooth | 16 metrics | Apple Health, Google Fit, Fitbit | Families |
The best smart scales, reviewed
1. Withings Body Comp — Best overall
Price: About $200–$230.
The Withings Body Comp is one of the most advanced home scales available. It uses multi-frequency sensors to estimate body fat, muscle, water and bone mass, plus visceral fat (fat around the organs). Independent testers praise its day-to-day consistency, which is what matters most for tracking trends. It connects over Wi-Fi, so readings sync automatically, and the Withings app is one of the most polished in the category.
- Pros: Very consistent readings; detailed metrics; excellent app and integrations
- Cons: Expensive; some advanced features may require a Withings+ subscription
2. Withings Body Smart — Best mid-range
Price: About $100.
The Body Smart offers much of what makes Withings scales popular for about half the price of the Body Comp. You get body fat, muscle, water and visceral fat estimates, weight in 0.1-pound increments and automatic Wi-Fi syncing. Reviewers rate it highly for its clean design and app experience.
- Pros: Strong feature set for the price; Wi-Fi syncing; precise weight readings
- Cons: Fewer advanced metrics than the Body Comp
3. Renpho Smart Scale — Best value
Price: About $25–$40, depending on the model (such as the Elis 1 or ES-CS20M).
Renpho is one of the best-selling smart scales in the US for a reason. For the price of a basic bathroom scale, you get 13 body composition estimates and an easy app that syncs with Apple Health, Google Fit, Fitbit, Samsung Health and Garmin Connect. Testers find its readings consistent from day to day, which makes it reliable for tracking trends even if individual numbers aren’t lab-accurate.
- Pros: Very affordable; broad app integrations; consistent readings
- Cons: Bluetooth only, so you need your phone nearby to sync
4. Garmin Index S2 — Best for Garmin users
Price: About $150–$200.
If you train with a Garmin watch, the Index S2 sends your weight and body composition straight into Garmin Connect, alongside your workouts, sleep and recovery data. It connects over Wi-Fi and supports multiple users. Outside the Garmin ecosystem, it is harder to recommend.
- Pros: Seamless Garmin Connect integration; Wi-Fi syncing
- Cons: Pricey; limited value if you don’t use Garmin
5. Eufy Smart Scale P3 — Best for families
Price: About $80.
The Eufy P3 supports many user profiles and recognizes who is stepping on, which makes it a good choice for households. It offers 16 body measurements, Wi-Fi and Bluetooth, and syncs with Apple Health, Google Fit and Fitbit.
- Pros: Great for multiple users; lots of metrics; fair price
- Cons: Body composition readings vary more than Withings in some tests
How body composition scales work (and how accurate they are)
Smart scales estimate body composition by sending a tiny, painless electrical current through your feet, a method called bioelectrical impedance analysis (BIA). Fat, muscle and water conduct electricity differently, so the scale uses that signal, plus your height, age and sex, to estimate how much of each you have.
Trends matter more than single numbers
Home scales are not as accurate as lab methods such as DEXA scans. A single body fat reading can be off by several percentage points, and readings shift with hydration, meals and exercise. What smart scales do well is show trends: if your body fat estimate is falling over several weeks, that is a meaningful signal.
How to get more consistent readings
- Weigh yourself at the same time each day, ideally in the morning after using the bathroom.
- Step on barefoot with dry, clean feet, and stand still.
- Avoid weighing right after exercise, a big meal or drinking a lot of water.
- Keep the scale on a hard, flat floor rather than carpet.
Safety notes
Most manufacturers advise against using body composition features if you have a pacemaker or another implanted electronic medical device, or if you are pregnant. Many scales let you turn these features off and use weight only. Check your scale’s manual and ask your doctor if you’re unsure.
What to look for when buying
- Wi-Fi vs Bluetooth: Wi-Fi scales sync automatically; Bluetooth scales need your phone nearby.
- App compatibility: Make sure it works with the apps you already use, such as Apple Health, Google Fit, Fitbit or Garmin Connect.
- Multiple users: Check how many profiles it supports and whether it recognizes each person automatically.
- Subscriptions: Some brands put advanced insights behind a paid plan.
- Display: Larger displays are easier to read, which helps if your eyesight isn’t perfect.
Use your scale in a healthy way
Daily weight goes up and down for many reasons, including water and salt. Look at weekly averages instead of reacting to a single day. If weighing yourself causes anxiety or obsessive thoughts, consider weighing less often and talking to a healthcare professional.
How we chose these scales
We compared published specs, current prices and results from independent reviewers who tested scales for consistency and, in some cases, against lab methods. We weighed reading consistency, metrics, app quality, integrations, multi-user support and value. We update this page when prices or models change.
Frequently asked questions
What is the best smart scale in 2026?
The Withings Body Comp is the best overall for detailed, consistent body composition data. If you want great value, a Renpho smart scale costs around $25–$40 and works with most major fitness apps.
Are smart scales accurate for body fat?
Not precisely. Home scales estimate body fat and can be off by several percentage points compared with lab methods. They are most useful for tracking changes over time when you weigh in under similar conditions.
Is a smart scale worth it for weight loss?
For many people, yes. Seeing weight and body composition trends in an app can help you stay motivated and notice fat loss even when the scale number moves slowly.
Can I use a smart scale with a pacemaker?
Most manufacturers advise against using body composition features with a pacemaker or other implanted electronic device. Many scales offer a weight-only mode. Check your manual and ask your doctor.
Do smart scales work with Apple Health or Fitbit?
Many do. Renpho, Withings and Eufy scales sync with Apple Health and other popular apps, while the Garmin Index S2 is designed mainly for Garmin Connect. Check compatibility before you buy.
This content is for informational purposes only and does not replace professional medical advice, diagnosis or treatment.