How to choose which iPhone model simulator to run my react native app?

Question

I am working on react native app, and I do testing on iOS Simulator.

However, it always runs on iPhone 6, and i don\'t know how I can switch to other iPhone models like

Answer 1

you could open your project in Xcode on mac and choose build target, then build.

Answer 2

react-native run-ios --simulator="iPhone 6s Plus"

As far as I can tell there is currently no way to specify the OS.