Size of controls on iPod Touch

We’re making apps that will be used on a range of iOS and Android devices, but a large proportion will run on iPod Touches with the lower 1136x640 resolution. I’d like to create some UI control templates for Balsamiq Mockups but not sure where I can look to find the font and UI sizes that Ionic would default to on this resolution. Any pointers?

Which one would you try to create as templates for Balsamiq?

Best solution for sure: Build an app (maybe even with Ionic Creator), make screenshots on an iPod Touch and use these as backdrop/template.