Download Apple Watch Series 3 Different Sizes Background. The shape and size of the series 3 is the same as the series 2. Retina oled, 1000 nits (peak).

You Can Now Compare Apple Watch 38mm And 42mm Actual Sizes Right On Your Iphone 9to5mac from i1.wp.com

Apple offers four different apple watch models, but three of the models—apple watch series 4, apple watch nike+, and apple watch hermès—have the same insides, so they're basically the same watch. The ‌apple watch se‌ and the apple watch series 3 have an optical heart sensor. The apple watch series 3 has 16gb the series 1 and 2 only has 8gb the series 4 also has 16gb whereas the seroes 5 and 6 have 32gb so i do t see why watch os7 needs 3.1gb when i have the series 3.

Here are the specifications for the series 4 case.

The series 5 has a slightly bigger screen that occupies more space on the watch's face compared to the series 3, and comes in new size options. Featuring the same case size as series 6 and available in 100 percent recycled aluminum. Of course, in many ways the apple watch series 3 isn't appreciably different for sports usage than the previous apple watch series 2 unit. This device was released on september 22, 2017, continuing apple's yearly release cycle.