Choose the Right Apple Watch Band Sizes
Determine your wrist size
An ideally worn watch strap, should neither be too tight nor not enough. In general, the male wrist measures 15 to 19 cm while the female measures 14 to 18 cm.
In order to determine the ideal length of your bracelet, you will have to start by taking the measurement of the circumference of your wrist.
Take your measurements
To measure your wrist, bring a meter of seamstress, if you don’t have one, use a string or a tape and then put it on a ruler. Wrap your wrist loosely, once you get the measurement, round to half a centimeter above.
For example: 15.2cm measured = 15.5cm