How to confirm Apple Watch wearing size

How to check the watch model and diameter from the back of Apple Watch

If you want to know your Apple Watch model and diameter, you can get this information by looking at the back of the watch. Below are specific steps and sample images to help you find relevant information quickly.

Step 1: Take off your Apple Watch
First, take off your Apple Watch so you can easily view the information on the back of the watch.

Step 2: Look at the back of the watch <br data-mce-fragment="1">Turn the watch over and look at the back of the watch. In the center or on the edge of the watch, you will see engravings that contain the model number and diameter of the watch.

Sample image

• Picture 1: Apple Watch Ultra 49mm

In this picture, we can see the words "Apple Watch Ultra 49mm" engraved on the back. 49mm indicates that the watch has a diameter of 49 mm, and Ultra indicates that the watch is an Apple Watch Ultra model.

• Picture 2: Apple Watch Series 7 45mm

In this picture, we can see the words "Apple Watch Series 7 45mm" engraved on the back. 45mm means the watch has a diameter of 45 millimeters, and Series 7 means the watch is an Apple Watch Series 7 model.

Step 3: Record information <br data-mce-fragment="1">After finding your watch model and diameter, you can record this information for use when purchasing accessories or need to provide watch information.

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- Make sure to view the engraving on the back of the watch in good light so that all information is clearly visible.
- If you have more than one Apple Watch, you can use different colored straps to differentiate between different watch models.

With the simple steps above, you can easily find your Apple Watch model and diameter. If you have any questions or need further assistance, please feel free to contact Apple Support.