The larger 46mm aluminum Apple Watch Series 12 now costs $449, a $20 increase from previous models. This means the price difference between the 42mm and 46mm sizes has widened from $30 to $50. This price hike follows a trend of increasing Apple product costs, including iPhones, Macs, and iPads, attributed partly to a RAM chip shortage. Additionally, newer iPhone Pro models have also seen significant price increases.