Types, Features, and Top Recommendations
In today’s health-conscious world, tracking fitness progress is more advanced than ever. One tool that has gained significant popularity is the smart scale, a device that goes beyond measuring body weight to provide detailed insights into your overall health. These innovative devices can track body composition, sync with apps, and help you monitor your progress over time.
In this article, we’ll explore how smart scales work, the different types available, and which smart scales are the best to buy based on features and user reviews.
What is a Smart Scale?
A smart scale is a digital weighing scale that connects to your smartphone or other devices via Bluetooth or Wi-Fi. While traditional scales only show your weight, smart scales are equipped with bioelectrical impedance analysis (BIA) technology, which sends a weak electrical signal through the body to measure body composition. This provides additional data like body fat percentage, muscle mass, water weight, bone density, and more.
These insights are sent to an app, allowing users to track their progress over time. Smart scales are a great tool for anyone looking to manage their weight, track fitness goals, or monitor health metrics regularly.
Benefits of Using a Smart Scale
- Comprehensive Health Data: Smart scales provide more than just weight readings. They track essential metrics like body fat, muscle mass, BMI (Body Mass Index), and visceral fat, giving you a fuller picture of your health.
- Integration with Fitness Apps: Most smart scales sync with popular apps like Apple Health, Google Fit, Fitbit, and MyFitnessPal, allowing you to seamlessly track your progress alongside other health and fitness data.
- Trend Tracking: The apps that accompany smart scales display trends over time, making it easier to see the long-term impact of your diet and fitness regime.
- Multiple Users: Many smart scales allow multiple user profiles, making them ideal for families. They automatically recognize each person based on their body metrics.
- Motivation and Accountability: By giving you real-time data and the ability to set goals, smart scales keep you motivated and accountable on your health journey.

Types of Smart Scales
Smart scales come with varying features and functionalities depending on your health goals. Here’s a breakdown of the main types of smart scales:
1. Body Composition Smart Scales
Body composition smart scales use bioelectrical impedance analysis (BIA) to measure body fat percentage, muscle mass, bone density, water weight, and more. This type of scale is perfect for those focused on achieving a healthy balance between fat and muscle.
- Best for: Individuals looking to track fitness progress or body composition changes over time, such as those building muscle or losing fat.
2. BMI Scales
These scales calculate your Body Mass Index (BMI), which is a simple ratio of weight to height. While BMI doesn’t account for muscle mass or body composition, it’s often used as a general indicator of health.
- Best for: People who want a quick and basic health assessment based on weight and height.
3. Wi-Fi Smart Scales
Wi-Fi smart scales automatically upload your measurements to an app or cloud service without the need to manually connect via Bluetooth each time. They provide more convenience and are ideal for people who want seamless, continuous tracking.
- Best for: Those who prefer automatic syncing without the need for manual connections to their phone or device.
4. Athlete Mode Scales
Some smart scales feature an “athlete mode,” which adjusts the calculations for individuals with a higher muscle mass. These scales use more precise formulas to measure body fat and other metrics more accurately for athletes or fitness enthusiasts.
- Best for: Athletes and individuals who engage in intense physical activity or weight training.
5. Pregnancy and Baby Mode Scales
Some smart scales are designed to track pregnancy weight gain or even weigh infants. Pregnancy mode helps monitor healthy weight gain during pregnancy, while baby mode allows parents to weigh their baby easily.
- Best for: Expecting mothers and families with newborns.

Best Smart Scales to Buy
There are many smart scales on the market, each with its own unique features and price points. Below are some of the best options available based on customer reviews, accuracy, and features:
1. Withings Body+ – Best Overall Smart Scale
- Features: Measures weight, BMI, body fat, muscle mass, water percentage, and bone mass.
- Connectivity: Syncs with over 100 health apps, including Apple Health, Google Fit, and Fitbit.
- Advantages: The Withings Body+ is highly accurate and offers multi-user support, automatically recognizing up to eight users. It has a sleek design and works seamlessly with a variety of apps.
- Best for: Individuals and families looking for a comprehensive and easy-to-use smart scale.

2. Fitbit Aria Air – Best for Fitbit Users
- Features: Measures weight and BMI. Syncs directly with the Fitbit app.
- Connectivity: Bluetooth.
- Advantages: It’s affordable and integrates perfectly with the Fitbit ecosystem, making it an ideal choice for Fitbit users. The Aria Air is straightforward and reliable for tracking weight and BMI.
- Best for: Fitbit users who want a seamless connection to their fitness tracker and app.

3. Eufy Smart Scale C1 – Best Budget Smart Scale
- Features: Measures 12 metrics, including weight, BMI, body fat percentage, muscle mass, bone mass, and more.
- Connectivity: Bluetooth.
- Advantages: The Eufy Smart Scale C1 is a budget-friendly option that offers a lot of data for its price point. The app is user-friendly, and the scale can track up to 16 users.
- Best for: Budget-conscious individuals looking for a reliable smart scale with detailed body composition tracking.

4. RENPHO Smart Scale – Best for Body Composition Tracking
- Features: Measures weight, BMI, body fat percentage, water percentage, muscle mass, bone mass, and 13 other metrics.
- Connectivity: Bluetooth.
- Advantages: RENPHO is known for its affordability and detailed body composition analysis. The app is intuitive, and the scale is compatible with a variety of fitness apps. It also supports unlimited users.
- Best for: People who want detailed body composition data without breaking the bank.

5. QardioBase 2 – Best for Pregnancy Tracking
- Features: Measures weight, BMI, body fat, muscle mass, water percentage, and bone mass. It includes a pregnancy mode.
- Connectivity: Bluetooth and Wi-Fi.
- Advantages: The QardioBase 2’s sleek design and pregnancy mode make it a standout choice for expecting mothers. It’s also compatible with major health apps and provides feedback through smiley faces instead of numbers, which can be less stressful.
- Best for: Expecting mothers and families who want a pregnancy-friendly smart scale.

How to Choose the Best Smart Scale for You
When choosing a smart scale, consider the following factors:
- Metrics You Want to Track: Do you want a basic scale that measures weight and BMI, or are you interested in body composition metrics like body fat and muscle mass?
- Compatibility with Apps: If you already use health apps like Apple Health, Google Fit, or Fitbit, make sure the smart scale you choose can sync with these platforms.
- Number of Users: If multiple people will be using the scale, look for a model that supports multiple users and can automatically recognize different individuals.
- Budget: Smart scales come at a range of price points. Consider your budget and which features are most important to you before making a decision.