Apple is reportedly testing 3D printing to manufacture smartwatches, starting with the upcoming Watch Series 9. The new technique, which has been under development for three years, uses binder jetting and sintering to create the device's outline and steel-like form. This method eliminates the need to cut large slabs of metal, reducing material use and production time. If successful, Apple may expand 3D printing to other products, including iPhones. The company has a history of testing new technology on the Apple Watch before implementing it in other devices.

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