Smart body scales have evolved past the function of just showing one’s current weight. Now, they connect to your fitness tracker and visualize the fat level in your body by performing a detailed Bioelectrical Impedance Analysis.

Wi-Fi vs Bluetooth Scales

Depending on how they connect with your smartphone or fitness tracker, smart scales fall into two main categories – Bluetooth and Wi-Fi-enabled. There also are models that support both connections.

Bluetooth scales can only communicate with other smart devices via a Bluetooth port. By contrast, Wi-Fi smart scales seamlessly synchronize your body indexes with all other fitness apps you may use.

Top 5 Smart Scales

1. Our Pick: Withings Body Cardio

Withings Body Cardio

• Powered by a rechargeable battery with a 3-year life span
• Measures six different body indexes plus PWV
• Accurately measures one’s weight on all surfaces

• Relatively high retail price
• Arterial stiffness measurement isn’t very accurate


Withings claims that their Body Cardio model is the world’s most technologically-advanced smart scale. Its slim design and solid aluminum base allow it to precisely measure the user’s weight regardless of the surface. 

This is our top choice of a smart scale because its revolutionary design is complemented by lots of useful features. For instance, Withings Body Cardio visualizes the Pulse Wave Velocity (PWV), a general index of one’s cardiovascular health.

This wi-fi smart scale also measures:

  • Muscle mass
  • Bone mass
  • Fat mass
  • Weight
  • Water content
  • Arterial stiffness 

With up to 8 separate user accounts, Body Cardio is a smart scale for the whole family. And with the help of the Health Mate, running both on Android and iOS devices, achieving your desired weight has never been easier. 

The built-in nutrition-tracking tool allows you to tell this smart scale what you eat. It visualizes each of the above components on the large display and gives each user valuable tips on how they should adjust their diet.

Check Latest Price & Availability

2. Premium Pick: Eufy BodySense

Smart Scale with Bluetooth

• Supports up to 20 user accounts
• Measures 12 different body indexes
• Recognizes up to 20 different smart devices

• Powered by 4 AAA batteries
• No pregnancy & athletic modes
• Only the user’s weight appears on the display


Our second choice is a Bluetooth-enabled smart scale that measures 12 by 12 inches and can measure weight up to 397 pounds. It is powered by 4 AAA batteries, which is a step backward from our top pick. However, it supports not 8, but 20 different user accounts.

Its native app is called EufyLife, supported by Android and iOS devices. Unlike Body Cardio, Eufy Body sense works best only on hard and flat surfaces. It accurately measures 12 different body indexes such as BMI, water content, and body fat, but only the user’s weight appears on the display.

 The other measurements are recorded in EufyLife. The lack of a daily weather forecast is not a big deal. More importantly, this smart scale does not have a pregnancy mode and it isn’t suitable for professional athletes either.

Check Latest Price & Availability

3. Best Value: Fitbit Aria 2

Fitbit Aria 2 Wi-Fi Smart Scale

• Wi-Fi & Bluetooth-enabled
• Syncs with the Fitbit tracker and 3rd-party apps
• You can log your diet into the scale

• Takes too long to display weight
• No pregnancy mode
• No rechargeable battery


If you are a Fitbit maniac, you’ll certainly appreciate the improvements the company has made on its second-generation smart scale. It supports 8 user accounts and connects to Android and iOS devices via both Wi-Fi and Bluetooth.

In addition to your weight, it measures your BMI, as well as the Body Fat % vs Lean Mass. Because it pairs with your Fitbit fitness tracker, this scale allows you to enter your diet, set weight loss goals, and track your exercise sessions. We were pleasantly surprised to find out that it could also measure your body’s hydration.

On the downside, the scale is powered by 3 AA batteries that are both bulky and heavy. It measures max weight of 400 pounds, but the display is quite small.

Check Latest Price & Availability

4. Wyze Scale

Wyze Scale, Bluetooth Body Fat Scale

• Very affordable
• Measures heart rate
• Integrates with Apple Health and Google Fit

• Low IPX rating
• No pregnancy mode
• Batteries must be changed every 3 months


This is one of the most affordable smart scales you can currently buy. It supports 8 user accounts and integrates seamlessly with both Google Fit and Apple Health. It displays 12 body indexes, including BMI, body fat percentage, heart rate, body weight composition, etc.

Caution: Wyze Scale is only rated IPX 3, which means you should not use it in the bathroom or step on it with wet feet.

This smart scale is powered by 4 AAA batteries, which need to be replaced every three months. The scale does not support pregnancy mode, but pregnant women should only use it in safe mode, which only measures their weight. For a gadget that costs roughly as much as two hamburgers, Wyze Scale does its job remarkably well!

Check Latest Price & Availability

5. Garmin Index Smart Scale

Garmin Index Smart Scale

• Long battery life
• 16 user accounts
• Analyzes your daily routine in detail

• Rather expensive
• No pregnancy mode


The last spot on our list is for a smart scale by the world’s leading producer of GPS devices. It features Wi-Fi connectivity and measures BMI, body fat percentage, skeletal muscle mass, etc. Interestingly, this smart scale supports up to 16 different user accounts.

The Garmin Connect app is easy to use and gives a detailed view of your daily routine, including activity level, calorie intake, sleep, and how it works towards the desired weight you’ve set. This smart scale is powered by 4 heavy-duty AA batteries that can last up to 9 months. Garmin Index Smart Scale is very suitable for athletes, but does not support pregnancy mode.

Check Latest Price & Availability


Every health-conscious person should consider buying a smart scale. Your top choice should have a rechargeable battery and a high IPX rating. It should also feature pregnancy mode.