One of the best features of a smartwatch is its customizability.

Depending on the brand, you might swap out wallpapers and alter the digital display.

A size deviation between two different models could require either a thicker or thinner band.

Person with a blank Apple Watch on their wrist

Prostock-Studio/shutterstock.com

So, step one is determining the size of your watch case.

There are a few methods to measure a case, but the easiest is by using a measuring caliper.

Measuring the Case

A caliper looks like a clamp and can have digital or analog readings.

MobyFox-Smartwatch-Bands

Vibrant, detailed, and comfortable watch bands let you personalize your smartwatch to match your style.

The reading, which is displayed in millimeters, is the watch case size.

Carefully look at where the edges of the bezel are, as those will be your measurements.

Take your time when using this method to ensure a more accurate reading.

A ruler can work but is imprecise when trying to work around the natural curves of your wrist.

A measuring tape is more flexible, allowing you to secure a measurement without it bunching up.

The number that the start of the tape sits at is your wrist size.

Just like the measuring tape, the end of the string will overlap with the string again.

That numbers the size of your wrist.

A piece of ribbon works, as well, if you don’t have string available.

The Cheating Method

You may be concerned about the accuracy of any of these methods.

Vibrant, detailed, and comfortable watch bands let you personalize your smartwatch to match your style.