[Compatibility] – You’ll match this band with any Apple Watch Series 4 case of the similar size. It also works with all previous versions of Apple Watch, including Apple Watch Series 3. The 40mm band works with the 38mm case; the 44mm band works with the 42mm case.
40MM(38MM) S/M Size: Suitable for 5.1″-7.1″ (130mm-180mm) wrist;40MM(38MM) M/L Size: Suitable for 5.9″-7.9″ (150mm-200mm) wrist;44MM(42MM) S/M Size: Suitable for 5.5″-7.5″ (140mm-190mm) wrist;44MM(42MM) M/L Size: Suitable for 6.3″-8.3″ (160mm-210mm) wrist.
Wonderful thrid-party design provides more options to check your Apple Watch.
High Quality subject material of silicon bring this strap soft and light weight characteristic,hand feeling could be very comfortable.
To put in this band, you best wish to take your original band off and push the brand new band onto the watch identical to how the Apple band works.