Samsung’s 2021 smartwatch series is expected to go through drastic changes, especially in regards to software. The company hasn’t made any announcements pertaining to its upcoming wearables, but numerous reports indicate that the Galaxy Watch 4 and the Galaxy Watch Active 4 will abandon Tizen OS in favor of Google’s WearOS. This rumor was reiterated by the Korean media earlier today, and more importantly, it was accompanied by a few new details regarding dimensions and sensors.

Neither the Galaxy Watch 4 nor the Galaxy Watch Active 4 will be equipped with a sensor capable of reading the user’s glucose level, claims the latest report. This was one of the more interesting rumored specifications pertaining to the upcoming smartwatch series, as a non-intrusive method of reading blood glucose levels would’ve been a game-changer for prospective buyers who might be suffering from diabetes.

A change in dimensions for both models

Software and sensors aside, the upcoming Galaxy smartwatches will reportedly have different dimensions compared to the ongoing Galaxy Watch 3 and Galaxy Watch Active 2.

Samsung will apparently try to make the Galaxy Watch Active 4 a bit smaller. If the rumors are correct, the smartwatch will be released in two variants measuring 40mm and 42mm as opposed to 40mm / 44mm.

In contrast, the Galaxy Watch 4 variants will reportedly be slightly larger than the predecessors, measuring 42mm and 46mm instead of 41mm / 45mm.

As to when we’ll know with certainty whether these reports are true, well, the Galaxy Watch 4 and Watch Active 4 are expected to be unveiled next to the Galaxy Z Fold 3 and Z Flip 3, presumably in late-July or August. There’s still some confusion as to exactly when Samsung’s next-gen foldable series will be unveiled but we’ll keep you posted as soon as we learn more.