Apple's sudden overtaking of the market can be attributed to the new Apple Watch SE's success, the mid-range Apple Watch option. Apple released the SE model alongside its flagship Series 6 at a lower $279 price point, with some caveats such as the lack of an always-on display, ECG functionality, and the faster S6 processor.
The rest of the tech industry could be in some serious trouble if apple keep releasing these mid range products with flagship processors.
Should've entered the midrange market ages ago.