Each template is responsive— which means it is mobile friendly. Your template shrinks right down to your device size while nevertheless keeping it is design.
Every Squarespace template is responsive. Something to be familiar with: features vary between Squarespace templates. As an example, some templates do not support Quick View or Image Zoom features for e commerce as well as other templates never allow you to personalize the mobile design. This could shock and frustrate about it ahead of time