雖然XZ3的對焦準確率非常高,但非常慢,而且不穩定,很容易拉風箱, 「In the comparison graph below, you can see that at a low light level of 20 lux, the Sony Xperia XZ3 autofocus consistently produces images with good sharpness. However, it is noticeably slower—with delays of half a second or longer after refocusing—than the competition from other brands. Sony’s Xperia XZ Premium isn’t the quickest either, but the difference between it and the Pixel 3 or the Pocophone is not quite as noticeable as on the XZ3.」
「In addition, a multitude of image artifacts resulted in a low Artifacts score of 38 points. Soft corners are the Sony’s biggest problem. Levels of detail are noticeably lower close to the edges of the frame than in the center, and we often find some chroma noise as well. The XZ3 also has a strong tendency to produce image flare with a strong light source inside or close to the edge of the frame, which can be a problem when shooting in sunny conditions. Other artifacts we see include ringing, distortion, and noise along high-contrast edges.」 「除此之外,許多後製痕跡也呈現在38分上。邊緣軟化是Sony最大的問題。細節在邊緣損失的程度比中央還嚴重很多,我們也常常找到Chroma Noise。在有強光源接近邊緣時,XZ3傾向產出有眩光的照片,在有陽光的環境下是個問題。其它不自然的還有像是振鈴效應、變形還有高反差邊緣的雜訊。」