Surely there's something more important to do than playing with your smartphone though
there's something more important to do than playing with your phone
スマホいじりよりもやる事ある(より大事なやることある)
スマホいじり=playing with your smartphone, using your smartphone
のどちらを使っていいです!
Surely ~ though
〜でしょうが
Surely there's something more important to do than playing with your phone though
マホいじりよりもやる事あるでしょうが
ご参考になれば幸いです!