If you need repairs done on your iPhone 6s, you need to hurry up…
Juli Clover from MacRumors:
The iPhone 6s initially launched in 2015, but Apple kept it around as a low-cost device until 2018, which is why it is only now being added to the vintage list. The iPhone 6s had Apple's A9 chip, and it was equipped with a strengthened aluminum chassis to fix the iPhone 6 "bendgate" design flaw. It was also the first iPhone with 3D Touch, and the last flagship iPhone with a headphone jack.
I’m sure there are many people still using this as an audio device since it’s still got a headphone jack (Tom Brady?), but if you want to get it fixed to make it last even longer, better get it done sooner than later by Apple before they run out of parts:
A device is considered "vintage" five years after it was last distributed for sale. For vintage products, Apple's retail stores and Apple Authorized Service Providers (AASPs) are still able to offer repairs, but only if the required parts are available.