Apple Watch Size Guide: Decide on the best one for your wrist

Ladies and gentlemen, hello and welcome to yet another exciting guide related to Apple Watches. We’ve talked about the features and performance of the Apple smartwatches in our previous few pieces. This time around, we’re going to change the trend a bit.

Instead of talking about which is the best Apple watch for you? We will try and analyze which Apple watch size is suitable for you. You can always use an adjustable Apple watch strap.

However, the size of the case is always vital to get right before pulling the trigger.
Apple moved to a new size standard for its smartwatches in 2018. Therefore, the Apple Watch Series 6 and the Apple Watch SE are now coming in 40mm model and 44mm models.

However, the first three generations of the Apple Watch – which also includes the Series 3 comes in 38mm and 42mm sizes. In today’s informative guide, we will be looking at ways to measure your wrist and determine which Apple watch is best for you in terms of size.

Apple Watch sizes: How to measure your wrist?

Yellow Measuring Tape

It is very important to know how big your wrist is before buying any model of the Apple Watch. It is because the fit of your watch is a fairly subjective thing and you cannot be 100% sure of the measurements you’ve done. Therefore, take out the flexible tape measure and size up your wrist.

Also, you can hold the strip just beneath where your wrist bone sits and around where you would usually like to wear the band, simply wrap it around your wrist and line it up with the sizes of your watch model.

Generally, a small wrist ranges from 5-6.5 inches and a large wrist is often between 7-8.5 inches. However, there’s a positive about Apple Watch bands and that is you can adjust with Velcro or within the perforations of sports straps to find an extremely specific fit.

It is not advisable to go too tight or too loose. It can become very uncomfortable but, it also affects the accuracy of the Apple Watch’s main functions such as heart rate monitor.

Apple Watch sizes: 38mm v 42mm & 40mm v 44mm

Apple Watch 38mm

The latest Apple Watch Series 4 is perhaps greater than Series 6 models that come in 40mm and 44mm versions. Also, you can go for the older models such as Series 3 or lower that comes with 38mm and 42mm casing.

The size of the bezel will be denoted by these measurements, however; the straps always play a very critical role in the specific fit of the smartwatch on your wrist. There’s one thing noticeable about Apple watches and that is they take measurements vertically. Other brands do the exact opposite and take measurements horizontally.

Therefore, you can expect a width of 34mm and a depth of 10.7 mm for the 40mm model. The weight of the case is expected to be around 30 grams. The width for the bigger 44mm model is expected to be 38mm and the same 10.7mm depth. Also, the case weight is around 36 grams expectedly.

If we talk about the 38mm model, the width is going to be around 33.3 mm while the 44mm sibling has a width of 35.9mm. Once again, just like the Series 4, you won’t find any disparity in the depth of each device as both of them comes at 10.5mm.

These sizes will play a major role in deciding which face will be the best suited for your wrist. Also, you can simply visit the Apple store and try all four sizes on your wrist.

Why you should pick the right band?

The material and tightness of the band largely affect the comfort, therefore; it is important for you to pick the right band. Apple has introduced a complete guide to the specifics of each of its own band types.

There is Modern Buckle, Sport, Milanese Loop, Classic Buckle and Link Bracelet. You will have to choose a size when you buy any of them but, some of them also come with a S/M and M/L strap for you to easily choose.


You must keep in mind that all the bands that have worked with Series 1-3 will correspond with the bigger/smaller size of series 4 or series 5. Therefore, a 38mm Series 2 band will fit the 40mm Series 5.

You can also explore a complete crop of third-party Apple Watch bands. Most of them are not expensive and many of them can pass the same style as Apple’s own variants. However, it is not the ideal thing to do as most of the customers using an Apple watch would ideally look for an original Apple watch band.