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I just got the Withings Body, a very basic smart scale. It’s all I need.

What I did want to point out is that there were less expensive similarly-featured scales out there, but Withings had the only privacy policy that put me at ease. In the age of an abundance of cheap Chinese products and of Google- and Amazon-connected ones that’s worth a lot.
 
I use it since a year and it works quite well. No complaints from my side.
 
I look at this as technology evolving, more and more "health sensors" are coming, now, speaking for the US, we need to get healthcare (doctors) to look at this data and then not blindly prescribing drugs that big Pharma wants them to sell.
Rather educate your patient and address the root cause, and yes, I understand that does not apply to everyone and everything but got to start somewhere
 
Measuring body fat via electrical resistance can have a +,-10-15% error rate. It doesn't matter what brand; the concept just isn't very accurate, as current always takes the path of least resistance through the body. Even calipers are more accurate.

Hydrostatic tests are the most accurate, but for home use, just get skinfold calipers.

I didn’t know that the error rate was that high, but I knew from experience that there was one. I have a Withings scale (but one that’s definitely further down the range from this one). Considering how questionable it can be (on a week where I know I didn’t eat as well as I should and I expect to weigh a bit more, the scale will often say “you put on muscle this week!”), I just wouldn’t pay $400 for this scale. Maybe $150, but, without any guarantee of increased accuracy, I can’t really justify the extra expense of this model. (But, if it were significantly more accurate, I could see myself paying $200 to $300 for it, though probably not full price.)
 
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Unless the company has had some sort of breakthrough in technology, these types of scales are not accurate. They do, however, tend to be within-person reliable. What I mean is while you can't really trust the accuracy of the body composition numbers, changes in them should be fairly accurate. Are you gaining muscle mass and/or losing fat? Is your body composition different from 6 months ago?

Those types of questions can be answered with reasonable reliability. Just don't think their values at any given time are accurate, if that makes sense.
 

Withings has awful support - avoid them as a plague. Actually, I was intrigued by MacRumors another article from about a year ago, and bought smart scales. But after a painful dealing with Withings, I regret ever setting my eye on it. Not only they will automatically (and quietly) charge you for a year of service ($100+/year), not only they will ignore your questions and tickets, but even if you are lucky enough to talk to them on the phone - they'll make you feel like you owe them for their existence and contribution to the humanity. Now my lifetime goal is to become obese, unhealthy, and die early, so I don't have to hear any more about Withings.


I've had an opposite experience. a failed device was replaced, they have price matched when I bought something from them and found a Lower price on Best Buy a week later and I canceled my Withings+ subscription after signing up and realizing it wasn't for me and they Never charged me since it was in the free trial period.
 
i wish that reviews of these fitness gadgets would delve into validating/confirming the accuracy of data presented by the devices.

these machine manufacturers make all sorts of claims about the data they generate and nobody ever tests these claims in a standard and scientific manner.

every "review" is basically a summary of features, never a test of the actual devices performance.
hard to believe any of these measurements are accurate. they would need to publish detailed analysis of their calibrations for me to even begin to consider buying them
 
I’ve had several Withings scales over the years and they’ve been fun little toys for the bathroom and I love collecting data on myself. But when I go in for a real medical checkup I’m usually in for a big surprise: real scales show me as about 5 pounds heavier. Withings offers no calibration tools. The models that used AAA or AA batteries lasted much longer. The rechargeable I had was dead and unrevivable after I returned from a 2-month trip abroad.

This review has me confused. Which has more functionality… the Euro or USA version?
 
If you really want to measure body fat accurately, the only way is do DEXA scan, don’t waste $$$ on the scale.
 
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I have a host of Withings products I have a scale, 🌡️, and blood pressure monitor I would tell everyone to avoid all Withings products, their support is horrible save your money and aggravation from dealing with them.
 
i wish that reviews of these fitness gadgets would delve into validating/confirming the accuracy of data presented by the devices.

these machine manufacturers make all sorts of claims about the data they generate and nobody ever tests these claims in a standard and scientific manner.

every "review" is basically a summary of features, never a test of the actual devices performance.
What’s important about accuracy of these devices. Setting individual baselines over extended timeframe. Apple Watch heart rate over extended time more important than the absolute single reading accuracy. Same with blood pressure devices. If the readings are off a few points, not a big deal. However, if history has a range average and all of a sudden that range changes, that’s a big deal. Where these devices are awesome, baselines.
 
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I have had it since release (in the UK) and have found the PWV measurement to be very hard to do. You have to place your heel just right. I’m wondering if a firmware update is needed. Withings support does respond but they have not solved the problem.
 
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Measuring body fat via electrical resistance can have a +,-10-15% error rate. It doesn't matter what brand; the concept just isn't very accurate, as current always takes the path of least resistance through the body. Even calipers are more accurate.

Hydrostatic tests are the most accurate, but for home use, just get skinfold calipers.
Ost composition imaging conducted by a legitimate medical imaging clinic is the most accurate means of testing.
 
For one-third of the price, you can get a "smart" scale from a respected company like Tanita or Omron.
 


When the holiday festivities are done with and January rolls around, people naturally look to improving their health and usually turn to smart devices to get their lifestyle back on track. Weight loss is typically part of that calculation, and while smart scales can help, there's little to distinguish between the majority of offerings on the market.

Weight and body composition analysis have become de rigueur features these days, but Withings' Body Scan Connected Health Station aims to go above and beyond the competition by offering an almost dizzying array of information about your physiological makeup.

withings-body-scan.jpg


Features

At $400 in the U.S. and £350 in the U.K., the Withings Body Scan is definitely at the higher end of the market for a smart scale. But when you consider its comprehensive set of body measurements, the price is a little easier to swallow. Biometrics include:
  • Weight
  • Metabolic Age
  • Basal Metabolic Rate
  • BMI
  • Segmental body composition analysis including:

    Muscle Mass (across five zones)
  • Fat Mass (across five zones)
  • Bone Mass
  • Visceral Fat Index
  • Lean Mass
  • Water Mass

[*]Nerve health
[*]Pulse Wave Velocity
[*]ECG
[*]Vascular Age
[*]Heart Rate

Connecting via Wi-Fi and Bluetooth, the scale feeds all of this information into the Withings Health Mate app, which connects to Apple Health or Google Fit to provide a comprehensive hub for pretty much everything to do with your body (more on this later).

While the scale measures weight to 0.11 pounds (50g) precision and provides several insightful metrics not seen on other scales, its standout feature is the segmental body composition analysis. This is made possible by a retractable handle that has a series of metal plates on it. When standing on the scale and with the handle held in both hands, the device sends an imperceptible electrical current through your body and analyzes the fat and muscle mass for your torso, arms, and legs independently. The idea here is to spot fat and muscle imbalances so that you can target your efforts on the specific areas of your body that need more work.

withings-body-scan-packaging.jpg

A similar technique is also used to measure arterial stiffness, by tracking how long it takes for a wave created in the blood as the heart beats to arrive at the foot — a measure Withings calls Pulse Wave Velocity (PWV). The retractable handle also features a 6-lead ECG that, like Apple Watch, can detect AFib, the most common cardiac rhythm disturbance that can cause stroke and heart failure.

Due to differing clinical regulatory hurdles based on region, there are also a couple of differences between the Body Scan that's sold in the United States and models available in the EU.

The U.S. version includes an Electrodermal Activity (EDA) Score. This biomarker measures and assesses the activity of the sweat glands in the soles of your feet. According to Withings, the EDA score can provide care teams with insight into a patient's stress levels, diet, and overall health. Meanwhile, the EU version tracks nerve health by providing a Nerve Health Score, which can help to detect signs of peripheral autonomic neuropathies, a damage in small nerves, one of the most prevalent complications of diabetes, and other common chronic conditions.

Design and Performance

The Body Scan's design is robust and visually inoffensive, combining a sleek striped tempered glass surface with a durable plastic base. However, measuring approximately 12.5 x 14 inches, it's larger and quite a bit heavier than most smart scales. It also lacks non-slip feet on the base, so it's probably not suited to super-smooth flooring. The scale interface also includes a large, vibrant color display that's easy to read from standing height.

The initial setup process of the Body Scan is user-friendly and intuitive enough. After charging the scale via the supplied USB-C cable and downloading the Withings Health Mate app to your phone, pairing the scale is generally straightforward, although this can be subject to the usual challenges of Wi-Fi connectivity, such as signal strength and interference, so make sure you have coverage in your bathroom or wherever you plan to keep it.

withings-body-scan-scale.jpg

To get a Body Scan, you need to stand on the scale barefoot and grip the handle with both hands. This allows the scale to conduct its comprehensive health check, but the duration for a complete scan is around one and a half minutes, so there's some waiting around. If you step off early, you'll still get your weight and some of the other standard biometrics, but things like Pulse Velocity and the segmental body composition analysis will usually fail. Fortunately, the app lets you customize which health metrics are recorded and displayed on the scale's screen, so you can tailor the experience to your own needs.

The scale can support up to eight individual user profiles, making it suitable for family use. However, its user recognition system is not foolproof and may occasionally misidentify the user standing on it, especially if two people in your household have a similar weight. Fortunately, the scale includes a neat solution that usually works – if it's not sure who you are, it will show you each family member's profile as a list, which you can scroll through by balancing on the foot of the direction you wish to scroll.

withings-body-scan-handle.jpg

There are a few other notable features that may be appealing to different members of a household. An eyes-closed mode hides the numbers from the scale screen at weigh-ins, offering motivational messages instead, while a baby mode will give you an accurate weight of your child just by holding them in your arms and stepping on the scale. There's also a pregnancy mode and an athletic mode for tracking health with different measurement algorithms.

All of this is customizable within the app, which is generally well designed and intuitive. It includes a visual 3D map of your segmented body composition (which tells you whether you are in or outside a normal range versus other users like you), trending graphs for several metrics like weight and BMI, and actionable health insights based on your weekly and monthly trends. It also allows you to export a health report PDF for a healthcare specialist or personal trainer... Click here to read rest of article

Article Link: Withings Body Scan Review: High-End Health Monitoring at a High-End Price
Why does it have different features in different countries? And as others have said, what evidence is there that this thing is accurate, or any more accurate than the Chinese $50 equivalent?
 
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I'd rather spend £50 on a full length mirror and the other £300 on a gym membership.

I can then assess my health by looking at myself and going to the gym.

No need for these level of health metrics unless you are a serious athlete or are so unwell you Dr needs these regular measurements to monitor your health.
 
Measuring body fat via electrical resistance can have a +,-10-15% error rate. It doesn't matter what brand; the concept just isn't very accurate, as current always takes the path of least resistance through the body. Even calipers are more accurate.

Hydrostatic tests are the most accurate, but for home use, just get skinfold calipers.
And everything else they say is generally derived from this very imprecise measure…
 
I'd rather spend £50 on a full length mirror and the other £300 on a gym membership.

I can then assess my health by looking at myself and going to the gym.

No need for these level of health metrics unless you are a serious athlete or are so unwell you Dr needs these regular measurements to monitor your health.
Losing weight is challenging and one of the very few things that has been shown in studies to help achieve durable weight loss is daily weights. So for those of us who struggle the scale can be a big help. Admittedly they didn’t study daily looking at self in mirror which might be as helpful.
 
I love reading everyone's criticisms of these scales (not just the Withings, but smart scales in general).

Are any of them going to be 100% accurate? Can any of them compete with $1000+ machines that measure single metrics? Of course not.

They are meant as an inexpensive (well, maybe not so inexpensive in this particular scale!) method to track personal trends in each of these areas.

I've just recently started to get serious about fat loss, muscle gain, improving cardio, etc. Do I take any of those individual numbers as gospel? Absolutely not. But when my Apple Watch is reporting a 30% increase in VO2Max today vs a year ago, it DOES mean something. When I get my smart scale (NOT this one), I hope to see improvements in several areas. People who use these are looking for a way to measure trends, and thats it.
 
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It must be super fun to work on a project like this. From the hardware to the software, the testing iterations, delivering a stellar user experience...
 
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