Compare SHARP AQUOS zero2 and Xperia 5 and Pixel 4 and Pixel 4 XL and Galaxy Note10+ and Zenfone 6 and OPPO Reno 10xZoom and Xperia 1 and SHARP AQUOS R3 and Galaxy S10 and Galaxy S10+ with thickness and thinness graphs.
Thinness is something that is often overlooked when purchasing a smartphone. Even if the size is large, a thin phone will be easier to hold.