Sony has recently released a revision of their latest gen. console: currently into the markets of Japan + Australia.
Reportedly 300gm lighter with a WiFi upgrade.

But, beware! All this weight reduction comes at the expense of the heatsink: an inferior heatsink!
Less copper and generally much smaller, therefore, the latest revision will put the system operating at higher temperatures.. 5 deg. C more to be exact. Not good in the long run.

Either get the launch version of the PS5 or wait for the 'slim'.