WatchGeneration from France reports that Apple plans to launch a special version of (PRODUCT) RED in 2020. It is reported that this unseen model has appeared in Apple's database, and the case may be made of red aluminum alloy like iPod Touch. At present, the Apple Watch is available in silver, space gray, and gold.
It is unknown at this time, but it is estimated that it will be launched as soon as spring 2020. In the past, Apple launched the (PRODUCT) RED version of the iPhone 7 in March 2017 and the (PRODUCT) RED version of the iPhone 8 in the past.