The phrase "similar notch" means something that is similar or comparable to another specific feature or mark.
Sentences with «similar notch»
Both the handsets will come with the latest Kirin 970 CPU, 4 GB of RAM, similar notch design. (themrphone.com)
Expect many more phones to sport similar notches in near future, with OnePlus seemingly next in line to put it on its upcoming OnePlus 6 flagship. (redmondpie.com)
The ASUS ZenFone 5 and ZenFone 5Z both feature similar notches. (xda-developers.com)