If there’s one thing Apple has made incredibly easy to predict for its next-gen smartwatch way before the Series 7 design actually leaked about a month ago, that’s clearly the branding of the processor powering said upcoming wearable device.
As you may have already noticed, there are a lot of “coulds” and “mights” involved in this particular rumor, so until another source (ideally, a more trustworthy one) corroborates what are ultimately mere assumptions right now, you probably shouldn’t get your hopes up for a very substantial battery life enhancement.
After all, there is a possibility that Apple will use the leftover space from the prospective double-sided chip technology integration to accommodate entirely new components or features.