Huawei Scale 3 smart body scale review

At around ₱899 as of August 20, 2026, reading in 0.05kg steps and sensing from 0.1kg. Publishing those two figures already puts it ahead of most of this category.

What the scale actually measures

Two things, and everything else is calculated.

Weight, from the load cells, which is a direct measurement and the accurate part.

Impedance, from a small electrical current passed up one leg and down the other. Fat, muscle and water conduct differently, so resistance is a proxy for composition.

Every other figure on the app screen, body fat, muscle mass, bone mass, visceral fat, metabolic age, is derived from those two numbers plus your height, age and sex. That is worth knowing before a long list of metrics reads as a long list of measurements.

Foot-to-foot impedance has a specific limitation

The current travels up one leg and down the other. It does not cross your torso, which is where most of the variation in body composition sits.

So the reading is an estimate of the whole body from one path through the lower half, adjusted by a formula. That formula is the manufacturer’s, which is also why two brands of scale give the same person different body-fat numbers on the same morning.

Treat the absolute percentage as approximate. Treat the direction over weeks as the useful output, which is what the scale is genuinely good for.

Hydration is the reason the number jumps

Impedance is really measuring how much water is in the path, so anything that changes your water changes your body-fat reading.

A salty dinner, a hard workout, a hot day, weighing in before rather than after a drink: all of them move the number without a gram of fat changing.

The fix is consistency. Same time of day, same conditions, ideally first thing in the morning after using the bathroom and before eating or drinking. Compare weeks, not days. Daily body weight alone swings a kilo or two from food and water, so a single reading tells you almost nothing either way.

Who should not use one

Manufacturers advise against impedance scales for people with a pacemaker or other implanted electronic device. That is the one firm restriction and it is worth respecting.

In pregnancy the composition figures are unreliable rather than dangerous, so the weight is still useful and the rest is not.

What 0.05kg steps buy

Fifty-gram resolution is finer than this category needs for body weight, given that a normal day’s fluctuation is a kilo or more. It does mean the scale is not rounding away real change over a month, which is when the trend matters.

Who should buy the Scale 3

Buy this if you want a smart scale with published resolution, you already use Huawei’s app, and you will read the composition figures as a trend.

Skip it if you want a single true body-fat number, which no consumer scale provides, or if you would rather not tie a bathroom scale to an app account.

The alternatives worth weighing

For the other well-specified smart scale here, see the Xiaomi S200 smart scale, and our Huawei Scale 3 versus Xiaomi S400 comparison sets the two ecosystems against each other. For weight alone with no app and no batteries, the Indoplas analog bathroom scale is the simplest thing here.