They did not bother to expound on the improvements in performance, but there’s a reason why. According to a tweet by developer Steve Troughton-Smith, the reason is because the Apple Watch Series 7 apparently uses the same chipset as the one in the Series 6. We’re not even talking about a modified version here, we’re talking about exactly the same thing.
https://twitter.com/stroughtonsmith/status/1437975564841803779
What this means is that all Apple did was to change the chassis, give it a larger display, and called it a day. This is a bit odd but according to Guilherme Rambo, he speculates that something might have happened at the very last minute that forced Apple to improvise to come up with a new model.
The fact that it doesn’t even get a new model code makes me think that the rumors about a redesign were right, but something went south at too late of a time to be fixed, and they had to improvise. https://t.co/c6VckCnzv1
— Guilherme Rambo (@_inside) September 15, 2021
You might recall that leading up to the official announcement there were rumors that the Series 7 could sport a brand new design. This was obviously not the case as you can see, and Rambo believes that the rumors were true, but something drastic might have happened that resulted in Apple putting those plans on the backburner.
There were rumors about a possible production problem, but given that Apple could not have possibly pulled a new design out of thin air this quickly, we’re not quite sure what happened. This also means that if you were thinking of upgrading, it’s looking like the Series 8 could be much more worth waiting for.