The performance of Apple Watch S9 series has been greatly improved. Why not upgrade the actual pain points?

This is really puzzling, haha. I was a little surprised when I got up in the morning to brush the update of Apple Watch S9 series, because I only saw three items: brighter screen, better processor performance, stronger offline speech recognition support and gesture control support. Then I went to the JD.COM commodity page and looked at it. It seems that this is really all. Did not improve battery life, did not bring new health monitoring functions and sports monitoring functions. However, although I don't understand the practice of not improving battery life, I can probably think of some things: First, the AppleWatchS series has been born for nearly ten years, and it has always been like this. Its target users have already accepted the use of charging once a day, and those who can't accept it have already been replaced by Huawei. Second, the improvement of battery life needs other cooperation. For example, the screen of AppleWatch S9 saves power, but the processor consumes power. To improve the battery life, it is necessary to increase the battery capacity and volume, which will bring about the increase of the whole fuselage. Users may not necessarily accept the thickening of the fuselage for a day and a half of battery life improvement. Third, making changes requires more research and development costs. According to the current impression of Apple, people may be reluctant to invest. Despite this, Apple still occupies the leading position of "adult watch with square dial" in the domestic watch market. The experience in other aspects besides battery life is quite good, especially the daily use function and sports function. If the product is unstable, it will not always be liked by so many users. For Apple users, the AppleWatchS9, which really hasn't increased in price this time, is still worth buying (S8 has also been officially removed from the shelves), especially the 45 mm dial, which only costs 3 199 yuan. Anyway, many places can't open eSIM now, so buy this as the top match of S series.