[1] In Japan, the phones model number is SO-02J, which is exclusive to NTT Docomo, and is available in a water and dust resistant variant unlike the global version.

It is available in White, Universe black, Mist blue colors.

In accordance with Sony's stated practices, the phone received system and security updates through September, 2018 (two years from release).

Spec-wise it was not as powerful as the flagship Xperia XZ, which some people felt was a downgrade for a compact variant.

Its build quality was also criticized, as well as the lack of waterproof that was present on its predecessor Sony Xperia Z5 Compact.