102mm bands for:
iPhone 8/7 - BOOST & BOSS
iPhone X - BOOST

* Will not fit iPhone Xs, Xr or Xs Max cases


106mm bands for:
iPhone 8/7 Plus - BOOST & BOSS

* Will not fit iPhone Xs, Xr or Xs Max cases


88.6mm bands for:
Galaxy S9/S9+ BOOST

* Will not fit any iPhone cases. Fits Galaxy cases only.