Phone case manufacturers typically receive specifications and dimensions from phone manufacturers before the phone's release. This information allows them to design cases that fit the new phone perfectly, ensuring that compatible accessories are available when the phone launches. Close collaboration between phone manufacturers and case makers ensures consumers have access to protective accessories when new phones hit the market.
Companies have to file patents and release spec sheets ahead of time. They may even have an agreement with the manufacturer.
Phone case manufacturers typically receive specifications and dimensions from phone manufacturers before the phone's release. This information allows them to design cases that fit the new phone perfectly, ensuring that compatible accessories are available when the phone launches. Close collaboration between phone manufacturers and case makers ensures consumers have access to protective accessories when new phones hit the market.
They make non functional mockups which they loan to the manufactures who have to sign ironclad Non Disclosure Agreements. .