Apple offers the Apple Watch Series 7 in 41mm and 45mm size casing sizes and the Apple Watch SE in 40 and 44mm size options. The first step in choosing an Apple Watch band is to select the right-sized Apple Watch.

Those with smaller wrists will want to opt for the smaller Apple Watch options, while larger wrists will need the bigger models. The 40/41mm Apple Watch models are designed to fit wrists sized 130 to 200mm, while the 44/45mm Apple Watch models are sized to fit wrists between 140 and 220mm.

Note that this guide references the 40, 41, 44, and 45mm size options available with the modern Apple Watch models, but this fit guide also works for the older 38 and 42mm models as band compatibility has remained the same since 2015.

HOW MANY MM IS SIZE 7 APPLE WATCH BAND?

The size of the watch band is measured in millimeters. The size 7 Apple Watch band is 40mm.

The Apple Watch comes in 38mm, 42mm, and 44mm. The 38mm watch band is measured as 130 mm. The 42mm watch band is measured as 140 mm. The 44mm watch band is measured as 145 mm.

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WHAT IS THE LENGTH OF AN APPLE WATCH BAND?

The Apple Watch comes in six different sizes. They are 38mm, 42mm, 44mm, 40mm, 44mm, and 46mm.

Two bands for the 38mm size are the Sport Band and the Milanese Loop. There are also two bands for the 42mm size - the Sport Band and the Milanese Loop.

While there are four bands for the 44/44s size - Leather loop, Woven nylon, Modern buckle, and Milanese loop, there are also two options for this size for a band that is not made of leather.

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HOW DO I KNOW MY BAND SIZE FOR APPLE WATCH? / HOW TO MEASURE YOUR WRIST FOR APPLE WATCH BANDS

Apple Watch bands come in different sizes, and it is essential to measure your wrist before you buy a new band.

A flexible measuring tape is the most accurate way to measure your wrist for an Apple Watch band. Place the end of the tape at the top of your wrist bone, wrap it around the circumference of your wrist and then read the measurement in inches or centimeters. Take this measurement and compare it with the size of Apple Watch bands available online or in stores near you.

APPLE WATCH BANDS AND THEIR SIZES

After determining your wrist size, it's time to know about Apple Watch band sizes. Apple Watch bands are incompatible with other case sizes and will only fit the selected case size. As such, a size five for a 40mm case does not work with a 44mm case, and vice versa. 

The following are the different kinds of Apple Watch bands and their sizes: 

• Apple Watch Sport Band: Size S/M and M/L for all wearable devices.
• Apple Watch Sport Loop: One size band for each watch size.
• Apple Watch Solo Loop: 12 sizes for each watch size. You have to calculate your size. 

• Apple Watch Braided Solo Loop: 12 sizes for each watch size. You have to calculate your size.

• Apple Watch Leather Loop: One size band for each watch size.
• Apple Watch Milanese Loop: One size band for each watch size.
• Apple Watch Silver Link Bracelet: One size band for each watch size.

• Apple Watch Classic Buckle: Three sizes for each watch size (S/M/L)

• Apple Watch Modern Buckle: Three sizes for each watch size (S/M/L)

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