Today’s bathroom scales do more than just measure your weight. Like many other household appliances and items, they’ve gotten a “smart” facelift, too. The best smart body scales can now connect to your mobile device, monitor your BMI, and even track your heart rate. If you’re looking for an accountability partner in your fitness journey, getting one of these devices is a no-brainer. To help you choose the best smart digital scale, we’ve narrowed down the field to top picks from Withings, Garmin, and more.
Are you starting to take your nutrition seriously? You can also check out our review of the best food scale for weight loss.
Best Smart Scale Comparison Chart
|Model||Product Image||Reason To Buy||Price|
|Withings Body Cardio||Amazon product||A premium smart body scale capable of monitoring your standing heart rate.||Amazon product|
|Garmin Index S2 Smart Scale||Amazon product||The best smart scale for Garmin Connect supports up to 16 users.||Amazon product|
|Fitbit Aria Air||Amazon product||Fitbit’s no-fuss smart scale works alongside a range of fitness trackers.||Amazon product|
|RENPHO Smart Body Fat Scale||Amazon product||The affordable smart scale tracks 13 metrics and works best with Samsung Health.||Amazon product|
|Innotech Body Composition Smart Scale||Amazon product||Innotech’s smart bathroom scale syncs seamlessly with Apple Health.||Amazon product|
Withings Body Cardio
The best smart bathroom scale for most users.
When it comes to smart scales, Withings easily comes to mind. The Withings Body Cardio, in particular, is one of the most feature-packed model in the market. Aside from weight, the Body Cardio monitors body composition, including body fat %, water %, and bone and muscle mass. Metrics can also be tailor-fit for athletes and non-athletes, as well as babies and pregnant women.
Where this advanced scale takes the lead, however, is in its ability to measure standing heart rate. Thanks to the patented Pulse Wave Velocity, the Body Cardio can monitor your heartbeat. If that doesn’t win you over, then the premium design of the scale should. It’s slim and sleek and can handle a max weight of 396 lbs. Withings adds the Body Cardio works for up to eight different users, too. It comes with the Health Mate app and offers local weather forecasts as well.
Item Weight: 5.7 lbs | BMI: Yes | Water %: Yes | Heart Rate: Yes | Battery Life: 18 months
Garmin Index S2 Smart Scale
The best smart scale for Garmin Connect.
Garmin is best known for its multisport watches and fitness trackers. If you have one of their wearables, then it makes sense to pair it with its smart scale. The Garmin Index S2 is a sleek device that gives users a holistic view of their health. Through its color display, users can check for weight, weight trends, and BMI. Users can also monitor for skeletal muscle mass, bone mass, and body fat percentage.
Since it’s a Garmin product, the Index S2 works seamlessly with the Garmin Connect app. It’s an intuitive platform to check out trend graphs and data from multiple weigh-ins. In addition, the app allows users to customize what metrics are displayed when they step on the scale. Just like Withings Body Cardio, the Garmin Index S2 shows the day’s weather forecast. But it does its rival smart scale better, thanks to support for up to 16 users.
Item Weight: 5.45 lbs | BMI: Yes | Water %: Yes | Heart Rate: No | Battery Life: 9 months
Fitbit Aria Air
The best smart scale for Fitbit.
Like Garmin, Fitbit is another popular name in the wearables market. The brand is constantly expanding its catalog, too, including health smartwatches, fitness accessories, and scales. Fitbit’s Aria Air is its budget-friendly intro to the smart bathroom scale field. At over half the price of its competitors, the Aria Air is designed for no-fuss weigh-ins. The device currently measures only weight and BMI.
Despite the limited metrics, Fitbit’s smart scale succeeds thanks to integration. Similar to the Garmin Index S2, the Fitbit Aria Air works with the comprehensive Fitbit app. It’s easy to sync the device wirelessly through Bluetooth, too. According to users, setting up the scale only takes a few minutes. Once connected to the app, the Aria Air works alongside other Fitbit wearables, providing you a better understanding of how your activity impacts your weight.
Item Weight: 3.95 lbs | BMI: Yes | Water %: No | Heart Rate: No | Battery Life: —
RENPHO Smart Body Fat Scale
The best smart scale for Samsung Health users.
The Samsung Health app is a major component of the Korean tech giant’s catalog of smartphones and smartwatches. However, the company has yet to launch its smart scale. In the meantime, the RENPHO Smart Body Fat Scale is a great option, especially for those on a budget. The device works well with Samsung Health as well as several other third-party apps.
With the Smart Body Fat Scale, users can track 13 different measurements. These include body fat, BMI, muscle mass, and body mass. There are also metrics for fat-free body weight, protein, body water %, and metabolic age. Despite its entry-level price point, the RENPHO scale boasts premium design and construction. The device comes with auto-calibration and is made from 5mm tempered glass.
Item Weight: 2.43 lbs | BMI: Yes | Water %: Yes | Heart Rate: No | Battery Life: —
Innotech Body Composition Smart Scale
The best smart scale for Apple Health users.
For Apple Health users, the Innotech Body Composition Smart Scale is a solid option. Like RENPHO, Innotech comes with its free app. However, it’s highly compatible with third-party platforms, too, including Apple Health. The Body Composition Smart Scale tracks nine metrics. Users can check weight, body fat, BMI, BMR, and bone mass, among others. Plus, it’s easy to sync all these data to your platform of choice to help you set and manage fitness goals.
Innotech’s smart scale comes with four built-in sensors discreetly integrated into the minimalist design. The weighing area is crafted from tempered glass, too, for additional durability. Plus, the large backlit display makes it easy to view your data. According to Innotech, its scale supports up to 10 users. Meanwhile, its free app is compatible with both iOS and Android devices. Innotech also adds that their products all enjoy local customer service.
Item Weight: 5.4 lbs | BMI: Yes | Water %: Yes | Heart Rate: No | Battery Life: —
Many of today’s smart scales are capable of measuring not just weight but body composition as well.Amazon product
If you’re in the market for a reliable smart scale, then the models reviewed are all solid purchases. Innotech, for instance, is a great option for Apple Health users. RENPHO, on the other hand, is an affordable scale that works well with third-party apps like Samsung Health. Brands like Fitbit boast their own smart scales, too, like the basic Aria Air model. Still, it’s hard to miss out on the reliability and features of the Garmin Index S2 and the Withings Body Cardio. Among the five scales listed, these two are the best investments for your fitness and health.
No, the Garmin Index S2 does not monitor or track heart rate.
Yes, the Withings Body Cardio smart scale comes in black and white models.
As a precaution, Innotech does not recommend the use of its Body Composition Smart Scale among pregnant women.
The Fitbit Aria Air currently measures weight and BMI. The units are displayed either as pounds, kilograms, or stones.