How Does Apple Health Know My Weight? 

You’ve just gone through a week of great workouts, and you feel on top of the world. And voila, Apple Health reports that you’ve lost a ton of weight during this period. This leads to the question, how does Apple Health know your weight in the first place?

Apple Health or your Apple Watch has no way to measure your weight automatically. It requires you to manually input your weight and measure it on your own. However, it can automatically track the changes in your weight and relay information accordingly.

In this article, we’re going to be talking about how exactly can you track your weight in Apple Watch, what its advantages are, and how Apple Health can find out what your weight is.

Using Smart Scales

The only way for your weight to be synchronized to Apple Health automatically is if you are using an Apple-certified smart scale. With it, your weight, amongst other data related to your fitness and health will automatically be synchronized to your device.

To set a smart scale up and running, all you need to do is pair it with your iPhone or any other device that is logged into your iCloud account. After doing so, download its respective companion application. Once your measurements are logged in, they’ll automatically be synced to Apple Health if you grant permission.

Personally, I’m not that big of a fan of smart scales. They are quite expensive and don’t seem to offer much other than just having the ability to tell you your weight alongside BMI, body fat, and water percentage. However, for the fitness freaks or weight loss enthusiasts amongst you, that can be more than enough to seal the deal.

So, we’ve done our digging and have found the best smart scales to use with Apple Health that also synchronize your weight automatically. They are:

So, with the help of a smart scale, you can track your weight loss progression directly on Apple Health. Moreover, if you have an Apple Watch, you can also synchronize your workouts, steps, heart rate, and sleep data to provide you with an extremely comprehensive overview of your health.

Inputting Weight Manually

The other, and more common method is to input your weight manually using Apple Health. For this, of course, you’ll need to use a weighing scale to measure yourself before you proceed with your readings. 

There is no real check or algorithm implemented to ensure that whatever information you are entering is accurate. So – for the sake of your own statistics, make sure that whatever weight you enter is accurate. Otherwise, you might end up with a cluster of information that simply does not make sense.

You can enter your weight manually in Apple Health on any device. After a short while, all the devices that are logged on to the same iCloud account will be synchronized with the same information.

Here’s how you can enter your weight manually in Apple Health:

  • Open the Health application on your iPhone
  • Once there, on the lower right, tap on Browse
  • Now, head to Body Measurements
  • Once there, tap on Weight
  • After doing so, tap on Add Data
  • You can now add your weight. The time at which you add it will also be recorded.

After you finish adding in your weight, you’ll notice a graph that displays your weight over a longer duration of time. With it, you can extrapolate your weight loss journey over a longer duration of time to get a sense of progress.

Can An Apple Watch Help You Lose Weight?

 Yes, an Apple Watch can help you lose weight. This is because it keeps an accurate count of your steps, the number of calories you’ve burnt, the glasses of water you’ve had, and your sleep. In essence, your trainer (or yourself), can have a great idea of where you are lacking and try to improve on it with help of your watch.


Does Apple Health Track Your Weight?

Yes, Apple Health can track your weight for a longer duration of time. You can either use a smart scale to synchronize your weight automatically or add it on your own. Apple Health can also help you identify periods where you’ve lost or gained the most amount of weight depending on your goals.

Can iPhone Determine Weight?

No, an iPhone lacks the capability to determine your weight in any meaningful capacity. In essence, it does not have the sensors required to measure your weight. However, it can keep track of your weight given that you enter all the information manually. 

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I bought my first smartwatch in 2018 and have been wearing one ever since. It might get frustrating at times to receive 100 notifications a day. That's why we need to know how to make the best of them and how to use them to improve our daily lives, not the other way around. I write about the newest smartwatches, I create top picks, and I write helpful guides and simply explain complicated things.