There’s a right way to wear your Apple Watch – and it affects your data


Apple Watch SE 3 on hand

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There’s one way to get accurate health data, and it doesn’t involve buying a more advanced smartwatch. Surprisingly, getting better data is as simple as changing how you’re wearing your smartwatch. 

Also: I walked 3,000 steps with my Apple Watch, Google Pixel, and Oura Ring – this tracker was most accurate

Accuracy is everything when it comes to health trackers. Wearables companies like Apple, Google, Oura, and Whoop have invested millions in research and development to develop sensors that can not only detect minute shifts in data but also map those details in an actionable, helpful way. 

While sensor quality improves data accuracy, sensor fit is equally important. 

How smartwatch sensors work 

To understand why a tight fit is important for smartwatch data capture, first, it’s important to understand how the smartwatch sensors work. 

Apple Watch Ultra

Matthew Miller/ZDNET

You may see your smartwatch glowing green around your wrist as you exercise or monitor your heart rate. That green light is actually essential in recording workout data. To continuously monitor your heart rate, a smartwatch emits green light onto your wrist. 

Red and green are complementary colors, and as your heart pumps blood during exercise, the green light absorbs the red blood. Between heartbeats, blood absorbs less green light, so more green light bounces back into the watch. 

Also: The best Apple Watch of 2026: Expert tested and reviewed

These intervals of reflection are then captured by the watch’s optical sensor and converted into electrical signals. These signals are tracked and converted into per-minute heart rate measurements.  

Why does your smartwatch’s tightness matter? 

The tighter your watch is to your skin, the less outside light interferes with this heart rate data capture. Exercising with a tighter watch can produce more accurate heart rate readings. 

How to correctly wear your Apple Watch 

Your Apple Watch should fit you comfortably, but it can be tighter or looser depending on the activity you’re doing. For exercise and heart rate measurements, it should be comfortable but tight. Try tightening your watch before a workout for the most accurate data capture. Loosen it for everyday wear. 

Apple recommends wearing the smartwatch just above the wrist bone. It should not be on top of the wrist bone, as it’s prone to shuffling around and an unsteady fit. 

Test your watch’s tightness by shaking your wrist and turning your hand palm up. If you feel your watch losing contact with your wrist’s skin, that’s a signal to tighten your watch band. 





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Michelin is a French multinational company that many consumers consider to be one of the most satisfying major tire brands. This firm makes several tire models that offer comfort, performance, all-terrain prowess, and everything in between — including cutting-edge products like the $42,000-per-set Michelin Pilot Sport PAX that it developed specifically for the Bugatti Veyron. Aside from its own tires, Michelin also owns other tire brands that you might be familiar with, including BFGoodrich, Achilles, and Corsa.

While tires are what Michelin is known for, the company has put its name to more than the rubber that wraps around your car’s rims. In fact, the company sells several other products that aren’t tires. So, we’re listing a few Michelin-branded items that you can buy online and in retail stores. While they might not all be made of rubber or even related to vehicles, these tools and accessories can come in handy when keeping your car — and even yourself — in good shape.

Michelin tire inflator

Since Michelin is primarily known for its tires, it makes sense for the company to sell a Michelin-branded tire inflator as well. That way, if you get a flat on one of the Michelin tires on your car or want to regularly top up your car’s tire pressure to maintain optimum performance, you can use a Michelin-branded pump to fill up your tires. The company actually sells several types of inflators on its Amazon page, but it only offers a single motorized unit — the Michelin Micro Tyre Inflator, which is available on Amazon for $98.99.

This little device is only slightly wider than an iPhone 17 and weighs about 400 grams, or 14 ounces. This means it’s easy to store in your car and to move to whichever tire needs topping up. More importantly, it takes power from a 12-volt socket, allowing you to run it using your car’s battery. It also has a USB port for charging your phone (or any other USB device) in case of an emergency.

Some users say that the device is slow, taking about 12 minutes to bring a tire from 10 to 32 PSI, but that’s not unexpected given its small size. Still, it should be good enough for regular weekly maintenance if you know your car’s proper tire pressure, or in case of an emergency. Its biggest downside is that you need a power source to run it, but having a dead battery and a flat tire simultaneously is likely a rare occurrence in many modern cars.

Michelin mini fridge

Taking a road trip during the summer can get you thirsty, and there’s no better way to quench that thirst than by drinking a cool can of soda (or your beverage of choice). If you want to ensure that you’ll always have a cold drink ready while you’re driving on the freeway, Michelin’s mini fridge will help you with that. This nifty little refrigerator is available on Amazon for just $99.99 and can be connected to either 110V AC or 12V DC power, ensuring that it will work on both your desk and in your car.

The mini fridge measures 6.9 x 9.45 x 10 inches (17.5 x 24 x 25.4 cm), meaning it can easily fit on a garage shelf or office desk. It should also be small enough to put on the floor of your car. Despite that relatively small size, it’s large enough to fit six 350-ml cans or four 500-ml bottles, and it will keep these items at a chilly 32 degrees Fahrenheit or 18 degrees Celsius. It also has an LED light on the door, so it can double as a night light if necessary.

Aside from keeping your drinks (and other food items) below room temperature, it also has a few other creature comforts. These include a removable shelf and door basket for flexibility and easy cleaning, as well as a retractable carry handle and a self-locking door to make transportation easier.

Michelin car floor mats

Heavy-duty car floor mats are often made from rubber for durability and water resistance, and since Michelin is in the business of rubber, it makes sense for the company to offer exactly that. So, if you want to protect your vehicle’s floor from dirt, dust, and mud, the company can help you with its Michelin all-weather car floor mats. This four-piece package is available on Amazon for $49.99 and comes in either black or tan.

The surface of these floor mats is specially designed to trap debris, snow, and water, preventing them from ruining the carpet on your vehicle. The mats have a cleat backing that grips your car’s floor and prevents them from slipping. The front row mats also come with what Michelin calls a Gripclip Retention System, allowing them to clip into your vehicle’s safety clips and adding even more reassurance that they won’t accidentally slip while you’re driving and pose a hazard to your safety.

These mats are universal and will work in most vehicles. However, they’re also easy to customize: If you find them a bit too large for the footwell of your tiny hatchback, you can use a pair of scissors to trim the edges for a perfect fit.

Michelin Stealth Ultra wiper blades

While Michelin’s Stealth Ultra wiper blades aren’t generally considered among the best windshield wipers, they appear to be a pretty good choice given their four-star rating on Amazon. These wipers cost $49.99 and are available in various size combinations for all sorts of cars. This ensures that no matter what vehicle you’re driving, you can probably find a set that will fit your needs.

These Michelin wipers are curved to conform to the shape of your windscreen for a clean, streak-free wipe. The company’s Amazon listing claims that these are designed to “withstand rain, wind, snow, mud, dust, or any other debris that might hamper your windshield’s visibility.” While you might think that windshield wipers are pretty simple items, and that you can just purchase any generic wipers off the internet, you must remember that they’re essential so that you have the best visibility possible during inclement weather. So, for your safety, consider investing in a set from a reputable brand like Michelin.

Michelin work boots

Michelin is known for making rubber tires to put on your car’s “feet,” but did you know it also makes shoes for the driver’s feet? The company makes sports & outdoor footwear, as well as shoes for work and safety. For this example, we have the Michelin HydroEdge Steel Toe waterproof work boot, listed for $210 on Amazon and at Georgia Boot. This shoe is available in U.S. sizes from 7.5 up to 14, ensuring that no matter what size you wear, you can get a Michelin work boot for yourself.

As the name suggests, this pair of shoes has steel toes to protect your feet from accidental impacts and is fully waterproof to help keep your feet dry, even in supposedly severe conditions. It also meets ASTM F2413 standards for electrical protection, meaning it has fully insulating soles to protect you from electrical hazards at work. Michelin also added what it calls an Advanced Rear Suspension system to its heel, ensuring proper shock absorption when you walk.





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