The Best Smart Scales Sync With Your Favorite Health Apps, Track Body Weight, and So Much More (2025)

The Eufy Smart Scale P2 was one of our top-scoring scales during our testing and analyzing process because it was easy to set up, you can create unlimited profiles, and it has both Bluetooth and WiFi connectivity. Eufy is a tech brand with tons of smart home devices from baby monitors to security cameras to robot vacuum cleaners. 

Based on the high-tech brand, we were not surprised that the Eufy Smart Scale can measure and track quite a few body composition metrics, including: Body weight, body fat, heart rate, body mass index (BMI), muscle mass, bone mass, water, protein, basal metabolic rate (BMR), visceral fat, body fat mass, lean body mass, body age, body type, skeletal muscle mass, and subcutaneous fat. 

GGR Expert Tester and Senior Staff Writer Caine Wilkes says the scale works well and measures a lot of metrics, but he’s unsure if all metrics are accurate. From his experience, body weight and body fat percentage were pretty accurate based on other scales and body scans he has done. 

However, Caine scored accuracy at 4 out of 5 stars. He docked a point for accuracy because other metrics were a bit off base. “The scale said my bones weighed 11 pounds. While the skeleton is lighter than you’d expect, the average weight is about 15% of your body weight. Based on that, I know my skeleton is heavier than 11 pounds,” says Caine. 

The Eufy Smart Scale P2 uses bioelectrical impedance analysis (BIA) and manganese (a trace mineral) to perform body readings. In a recent BMJ Nutrition, Prevention, and Health¹ study, researchers compared BIA devices with dual-energy X-ray absorptiometry (DXA) to measure fat-free mass and body fat percentage. The study found that BIA systems were within 3% accuracy to the DXA systems, meaning that BIA can be a relatively accurate reading of one’s body composition. 

Caine gives the Eufy scale 5 out of 5 stars for the setup process. He had to download the EufyLife app, but it only took a few minutes to register and connect the app to the scale. It comes with four AAA batteries and a measuring tape for additional health data. 

Our only callout is the potentially slow shipping time if you order directly from Eufy, according to Caine.

“The main gripe I had was the mail time,” says Caine. “I got this one month after purchasing (through the website), and had no warning of a delay. For a good bit I thought I’d been scammed. Amazon has Prime delivery, so that might be the way to purchase this.”

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If you’re looking for a more affordable option, we recommend the Wyze Smart Scale.

The Renpho Smart Scale is our top pick for best budget option. It retails for $49.99, but when our tester, Kate Meier, CPT and GGR director of content, purchased the smart scale it was on sale for $29.99. 

“It’s not only really affordable, it’s also easy to use the Renpho Health app,” says Kate. She scored the setup process 5 out of 5 stars. “I have another smart scale and the user interface is similar and both are super intuitive. 

“You can have unlimited profiles and each profile is super easy to set up and use. I plan to keep this scale in my gym for my competitive weightlifters to check their weight and set up their own profiles,” she says. Kate is not only a certified personal trainer, but a USAW-L1 coach and trains competitive athletes out of her garage gym. 

In addition to syncing with the Renpho Health app, the smart scale can also sync with your preferred third-party fitness apps like Apple Health, Samsung Health, Google Fit, and Fitbit. For compatibility, she gave the Renpho Smart Scale a 5-star rating.

The Renpho earns another 5-star rating when it comes to accuracy. She compared her body weight to other scales and weighed a dumbbell. “I put a 10-pound dumbbell on this scale and it measured it as 4.55 kilograms, which is 10.01 pounds, meaning this is incredibly accurate,” says Kate. 

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This is a great scale, but if you’re looking for something that tracks a few more data points and is a bit more tech-focused, check out the Withings Body Smart Scale.

If you’re on the hunt for a WiFi scale with tons of app connectivity, the Withings Body Smart Scale is an ideal option. Withings has its own app, but you can also sync with other fitness trackers, smartwatches, and third-party apps like Fitbit, Apple Watch, Apple Health, Google Fit, and MyFitnessPal. For this reason, the scale earns a 5-out-of-5-star rating for app compatibility. 

GGR Expert Tester and Staff Writer Matt Dustin used the Withings Health Mate app and reports it was a pretty quick and easy process. “You’ll need to download the Withings app and register, but then it will walk you through the process of pairing the scale,” says Matt. 

While the initial set-up went well for Matt, when his girlfriend also downloaded the app, the process to get her set up as a new user (the device can recognize up to eight users) was a headache. He scored the overall setup at 3.5 out of 5 stars. “Getting her added took us a long time. And then once she was set, her health metrics took about 20 minutes to sync to the app,” says Matt. 

While adding new users was frustrating for Matt’s household, he appreciates the number of different metrics you can track with this scale. The Withings scale can measure body weight, BMI, BMR, and visceral fat along with muscle, water, and fat percentage. You can also track your standing heart rate. 

When it comes to accuracy on these measurements, Matt scored the Withings scale 4 out of 5 stars. “This scale is super sensitive to floor positioning,” says Matt. “I’ve weighed myself a few times in a row, moving it slightly each time, and the weight was different each time. My older, much cheaper scale was pretty much the exact same in every location,” he explains. 

Matt noticed the weight measurement inaccuracy when he put the scale away between uses. “I decided to find a floor space where I can keep it permanently to make sure it’s accurate between weigh-ins,” he says. 

If you’re purchasing the Withings scale on Amazon, be aware there are different models. Matt tested the Withings Body Smart. Other models include Body Scan, Body Comp, and Body Cardio and can track additional metrics like vascular age, electrodermal activity, and body composition. 

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If you want to save some money without sacrificing any quality, we recommend the Eufy Smart Scale P2, our pick for the best smart scale overall.

If you’re a Fitbit user, the Fitbit Aria Air smart scale is an excellent addition to your fitness technology collection. GGR Head of Content Nicole Davis, CPT, PN1-NC, says the Fitbit smart scale is user-friendly and the set-up process is super easy, earning 5 out of 5 stars. 

The Fitbit Aria Air scale can track your weight and BMI. Nicole notes there should be a way to measure body fat percentage, but she hasn’t been able to figure that out. For data tracking capabilities, Nicole gave the Fitbit Aria Air a 3-out-of-5-star rating. “The Fitbit scale doesn’t offer much as far as body composition measurements. It’s really just a bathroom scale that can connect to the Fitbit app.” 

For Fitbit users, this might be enough. You’ll be able to set goals, log workouts, and track weight all in one app (or on your Fitbit device). “I like the scale, but it works for me because I’m already in the Fitbit ecosystem with my Fitbit Sense 2 smartwatch and already use the Fitbit app,” says Nicole. 

The set-up process was super simple for Nicole (as a pre-existing Fitbit app user) and she was able to start tracking weight right away. As long as you have the Fitbit app, you can have unlimited users. Nicole scored the setup process 5 out of 5 stars. 

Based on her experience, she’s not sure it’s worth the $49.95 if you’re not an existing Fitbit user. Plus, the scale is not compatible with other apps, it only syncs with the Fitbit app. We have more details about Nicole’s experience in our Fitbit Aria Air review.

If you want a smart scale that has a similar price point but works with more apps, check out the Renpho Smart Scale.

If you’re a Garmin user, the Garmin Index S2 smart scale is an ideal addition to your fitness tracking. The scale has both ANT+ and WiFi capabilities and can sync with your Garmin Connect app in addition to other popular apps like Apple Health and Google Fit. 

Amanda Dvorak, CPT and GGR senior editor, tested the Garmin Index S2 and was surprised how frustrating the setup process was for her, rating it 2.5 out of 5 stars. She owns and frequently uses the Garmin Forerunner 956 smartwatch—which had a smooth onboarding process—and was surprised a smart scale would be any more difficult.

“This was kind of a pain to set up,” says Amanda, “Which surprised me because the Garmin watch I use now and the one I had before were really easy to set up. It took quite a few minutes to get the scale to sync to the app.”

Once it was up and running, Amanda was able to start tracking body weight, BMI, body fat percentage, weight trends, skeletal muscle mass, bone mass, and body water percentage. During her testing process, she compared her body weight on the Garmin Index to her basic bathroom scale in addition to weighing a 20-pound dumbbell on both scales. 

The Garmin Index S2 earns a 4.5-star rating for accuracy. It was fairly consistent with her bathroom scale after she made one adjustment: She had to stop storing it upright in her bathroom closet. “I read on the Garmin site that storing the scale vertically can cause some inaccuracies. We started storing it flat and it’s much more consistent now,” says Amanda.

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Garmin users may love this scale, but if you want a more affordable option that has a much smoother setup, the Fitbit Aria Air earned 5 out of 5 stars for the setup process.

The Wyze Smart Scale is an excellent option for teams, large households, or folks who need to keep track of multiple users. GGR Editor and Expert Tester Frieda Johnson tested the Wyze Smart Scale in her home. 

“The scale can automatically recognize up to eight people and has a ‘guest mode’ so anyone can step on the scale,” says Frieda. “It’s also easy to use and displays both your body weight and body fat percentage on the scale.” 

Frieda was able to set up the Wyze app seamlessly to access fitness metrics, graphs, and trends. However, it took several attempts to get the scale to sync with multiple users, and she gives the overall setup process 3 out of 5 stars. 

“To have multiple users on the Wyze scale, you can either add someone as a user on your app—which gives them their own profile—or you can share the app, which emails them a link to download the app separately,” says Frieda.

Frieda notes that you can track other metrics in the Wyze app—like bone mass and muscle mass—but she thought it was interesting that the scale can also track heart rate, although it needs to be done separately from the standard weigh-in. To measure your standing heart rate, you’ll have to have your app handy and step off and back on the scale, which Frieda thought was odd but not a dealbreaker. 

When Frieda tested for accuracy, she scored the Wyze Smart Scale 4.5 out of 5 stars. She compared Wyze to her non-smart scale and was within a half-pound difference. She also compared her standing heart rate to her Fitbit, and it was about 2 to 3 beats per minute within her Fitbit fitness tracker reading.

She also gave the tech features 4 out of 5 stars, noting that the scale can sync with a variety of health apps.

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This scale has plenty of great features and is very affordable, but if you’re considering other options, check out the Eufy Smart Scale P2, our choice for the best smart scale overall.