When buying a new Apple Watch strap, one of the most common concerns is compatibility. Apple offers different sizes and models of its iconic watch, and not every strap fits every watch. In this guide, we’ll help you understand which Apple Watch straps are compatible with which models, ensuring you get the perfect fit for your watch.
Understanding Apple Watch Sizes
Apple Watch models come in two general size categories:
- Small/Medium (38mm, 40mm, 41mm)
- Large (42mm, 44mm, 45mm, 49mm)
When selecting a strap, the most important thing is to match the case size of your watch to the strap size. Apple has been consistent in its strap design, allowing many straps to fit across multiple generations of the watch.
Here’s a breakdown of the sizes:
- 38mm – Apple Watch Series 1, 2, 3
- 40mm – Apple Watch Series 4, 5, 6, SE, 7
- 41mm – Apple Watch Series 7, 8, and Ultra
- 42mm – Apple Watch Series 1, 2, 3
- 44mm – Apple Watch Series 4, 5, 6, SE, 7, 8
- 45mm – Apple Watch Series 7, 8, and Ultra
- 49mm – Apple Watch Ultra & Ultra 2
Are Apple Watch Straps Interchangeable Between Series?
Small/Medium Apple Watch (38mm, 40mm, 41mm)
If you have a watch with a case size of 38mm, 40mm, or 41mm, the straps for these sizes are generally interchangeable. So, a strap designed for a 40mm Apple Watch will also fit a 38mm or 41mm watch. This is because Apple designed the lugs and attachment mechanism to be consistent across the small/medium models.
Large Apple Watch (42mm, 44mm, 45mm, 49mm)
Similarly, if you own a 42mm, 44mm, 45mm, or 49mm Apple Watch, the straps are compatible across these models. For example, a strap for a 45mm watch will fit a 42mm watch without issue.
While the Apple Watch Ultra & Ultra 2 is the largest model at 49mm, it still supports compatibility with the straps from the 44mm and 45mm models. However, if you want a perfect fit and durability for more rugged activities, you may want to look at the straps specifically designed for the Apple Watch Ultra.
Compatibility Summary
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If you're wondering how easy they are to change then take a look at our guide on how to change an Apple Watch band also if you are undecided on which style of the strap would be best for you, we have a breakdown on finding your perfect Apple Watch strap.
When selecting a new Apple Watch strap, knowing which straps are compatible with your model is essential. Fortunately, Apple has made it easy to mix and match straps across different series, so you have plenty of options to choose from.
At Blakemoor, we offer a wide range of Apple Watch straps all compatible with your Apple Watch model.
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