Renowned analyst Ming-Chi Kuo posted on X that the Series 10 will have a design upgrade, which includes larger screens (upgrading from 45mm/41mm to about 49mm/45mm) and a thinner form factor. There are no significant changes to the specifications of the Apple Watch Ultra model, but if the production yield can meet expectations, there may be additional options for casing colors (black/dark). Apple Watch will start using parts produced by 3D printing technology from 2H24. Although no mass production was achieved last year, after more than a year of intensive testing, the production efficiency of 3D printing has been significantly improved. The supplier of 3D printed parts is Xi'an Bright Laser Technologies. Unlike last year, when Xi'an Bright Laser Technologies was a device supplier, this year it is a parts manufacturer. Due to the cost advantage of 3D printing, it is expected that Xi'an Bright Laser Technologies' 3D printed parts shipments will continue to grow over the next few years, and there is a chance to achieve the Apple Watch casing (due to the lower difficulty of the Apple Watch casing compared to other Apple products).