What is my Apple Watch strap compatibility?

Apple Watch comes in a range of sizes. However, the individual dimensions of your device will depend on the model. See our Guide below to match your Watch to the strap size you’ll need!

Apple Watch Series 1 - 38mm or 42mmApple Watch Series 2 - 38mm or 42mmApple Watch Series 3 - 38mm or 42mmApple Watch Series 4 - 40mm or 44mmApple Watch Series 5 - 40mm or 44mmApple Watch Series 6 - 40mm or 44mmApple Watch SE - 40mm or 44mmApple Watch Series 7 - 41mm or 45mmApple Watch Series 8 - 41mm or 45mmApple Watch Series 9 - 41mm or 45mmApple Watch Ultra - 49mmApple Watch Ultra 2 - 49mm

What is the difference between "38/40/41" & "42/44/45/49" Apple Watch?

If your Apple Watch is a Series 12 or 3, your case size will be either 38mm or 42mm.If your Apple Watch is a Series 456 or SE your case size will be either 40mm or 44mm.If your Apple Watch is a Series 7, 8  or 9 your case size will be either 41mm or 45mm.If your Apple Watch is an Ultra or Ultra 2 your case size is 49mm.

What’s my size?

There are two things to look at when picking a size that's right for you.

Firstly, you want to ensure that it will fit the size of your Apple Watch (the size of your Apple Watch will be stated on the underside of the Apple Watch):

Our 38/40/41 straps fit 38mm, 40mm & 41mm Apple WatchOur 42/44/45/49 straps fit 42mm, 44mm, 45mm & 49mm Apple Watch

The next thing is to measure your wrist size:Some of our straps come in different sizes, while others are One Size Fits All.It's always best to refer to our Size Guide to find the best fit for you.


Is iSTRAP legit?

We're as legit as they come, baby. Founded in 2018, we're Aussie-owned and operated. You can read more about us here →

When will I receive my order?

If your order was sent with Express Shipping, you can expect to receive your order within 4 days*.

If your order was sent with Standard Shipping, you could expect to receive your order within 7 days*.

Timeframes exclude weekends & public holidays.

*The latest shipping updates can be found on the Australia Post website.

Do you drop-ship?

Gasp Oh no, you didn’t! We manufacture all our products to bring you the highest quality, the largest range and affordable options.

What if I ordered the wrong size?

It happens! If you order the wrong size, head to our Returns Portal to initiate your return. Once we receive your return, we’ll provide you with a store credit so that you can go ahead and checkout with the correct size.

How much is shipping?

Express Shipping is £20

Standard Shipping is £15

All orders are sent the next day if you order on weekdays (excluding weekends and public holidays).

Do you ship internationally?

Absolutely! Our Australian shop ships everywhere including the United Kingdom and New Zealand.

Shop at iStrap Australia →

Shop at iStrap New Zealand →


Can I track my order?

Absolutely! You are sent a tracking number via email and/or SMS as soon as your order leaves us. You can track your order any time with Australia Post here.

I entered the wrong address!

Have no fear! If you have accidentally ordered your parcel to the incorrect address, we suggest contacting Australia Post, as they may be able to re-route it for you. You could also do this on the go via the AusPost app!


Can I change my mind?

Of course, you can! If you're not 100% happy with your purchase or want something else, we offer our Love It or Swap It policy. Once your item has been delivered, you will have 30 days to return it to us for a Store Credit. You can find details on our Returns Policy here.

How do I return my order?

Need to return something? Easy! Head to our Returns Portal to initiate your exchange.

How long until my return is processed?

Once received, your return will be processed in up to 5 business days. Just keep an eye out for an email from our team!

Can I return an item purchased with a discount?

No strap gets left behind! All products are subject to the same returns considerations no matter how they are purchased. You can find details on our Returns Policy here.