The Watch processor S1 is built with outdated technology and could be much more powerful in the future.
The US website Chipworks relented a teardown known more details about the S1 chip Apple Watch. Electricity produced by Samsung Chip (plan below) is probably built with a 28-nanometer process. However, this applies in processor technology already obsolete.
There are the Prozessorbau new technologies available, such as the 20-nanometer process the current A8 chips or even a 18-nanometer process, which is expected for an upcoming version of A9. In terms of performance of the S1 is therefore “only” on a par with the Apple A5 chip, which was built into the iPhone 4S and the iPad 2.
With newer processes more transistors and thus more power can be accommodated on a platinum surface. Why Apple has not yet used this technology for the Watch, is unknown. But if they are used in the future, coming Watch generations should look forward to a significant performance boost.