Apple Watch Bands are easily changed with simple release buttons and lugs that*secure the band to the Apple Watch case. When creating your custom bands, refer to*the band design Guidelines and lug profile. Apple Watch lugs will be available soon*through the Made for*Apple Watch*program.
Firstly, the Bands must integrate with the two lugs that mate with the Apple Watch Band Interface. They also should **t integrate magnetic chargers and the lug latch must never be jammed while in an extended position. Bands also can**t prevent a user's skin from maintaining direct contact with the Watch's heart rate sensors or general back area. The band themselves must also compensate for any potential shifting or dimensional changes in material.
Apple also has recommendations for the materials that lugs and lug latches should be made of, with the lugs being made out of a specific silicone, nylon or stainless steel while lug latches are recommended to be made out of either nylon or stainless steel. Other requirements for band materials include compliance with applicable environmental regulations in regions where Bands are intended to be sold.
Finally, Apple has physical requirements for what the Bands for Apple Watch are **t allowed to do, which include **t obstructing Apple Watch hardware items like the mic or speaker, the charging pad, the antenna, and the heart rate sensors. They also can**t extend beyond the sensor *******, cover the glass or interfere with the Digital Crown or Force Touch.