Compare Xperia Ace and Xperia XZ2 Compact and LG it LGV36 and Xperia XZ1 Compact and Raku-Raku Smartphone F-52B and SHARP AQUOS R2 compact 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.