On June 17th, Jinshi Data News, well-known analyst Guo Mingchi posted on X that Series 10 will have an appearance upgrade, including a larger screen size (upgraded from 45mm/41mm to about 49mm/45mm) and thinner design. The specifications of the Apple Watch Ultra model have not changed significantly, but if the production yield can meet expectations, there may be additional options for case colors (black/dark). Starting from 2H24, Apple Watch will adopt structural components produced by 3D printing technology. Although there was no mass production at the end of last year, after more than a year of intensive testing, the production efficiency of 3D printed components has significantly improved. The supplier of 3D printed components is Blotech. Unlike in the past, Blotech was a device supplier last year, but this year it is a component manufacturer. Due to the cost advantages of 3D printing, it is expected that Blotech's 3D printed components shipments will continue to grow in the next few years and have the opportunity to achieve Apple Watch cases (because the difficulty is lower than other Apple products' cases).