Compare SHARP AQUOS R2 compact and Xperia XZ2 Compact and SHARP AQUOS zero and Xperia XZ3 and SHARP AQUOS R2 and Galaxy Note9 by weight and lightness graphs.

There is quite a difference in weight between different phones. If you are going to hold the phone in one hand for a long time, it is recommended to have the lightest phone possible. Note that the more battery capacity you have, the heavier the weight will be.