After years of gathering dust next to the towel rack, the smart scale industry has finally woken up - driven almost certainly by the GLP-1 craze, as millions of consumers stare at their bathroom floors wondering whether those weekly jabs are actually doing anything.

What was previously a category occupied by dated gear has abruptly exploded, and for good reason. Today's smart scales don't just report your weight; they measure heart rate, break down muscle composition, and some can even keep an eye on your heart health courtesy of integrated ECG systems. Through mobile apps, they track all of it over time, because nothing says wellness like a graph of your existential dread.

The big shift in the past year has been a flood of new full-body scanners from all corners. Essentially bathroom scales with handlebar-based scanners, these don't just use bioelectrical impedance analysis (BIA) to measure conductivity - and thus body fat percentage - through your feet. They now scan through your hands, too, offering a much more holistic (and ostensibly accurate) look at your body metrics than a floor scale. I've personally seen body fat percentage numbers swing up to 6 percent between the two types of scales. Spoiler: the full-body scanner data is always higher.

Do you really need all that information? I've long suggested that it's the trend line that matters most, not the absolute numbers. As long as your metrics are headed in the right direction, it doesn't matter much if things are off by a small percentage. Consistent weigh-ins are the most important part of the process, along with tracking that information over time to determine whether your diet and workout regimen (or medication routine) is getting you the results you need.

Mind you, scale prices are headed up, and new full-body scanners can now top $600 for top-tier tech. That's part of the reason why I still recommend a standard scale for most users - these devices are considerably less expensive, and the results they offer are likely to be good enough for all but serious athletes.