An official announcement from Niantic, developers of Pokémon GO, says that as of July 1st, Apple Watch users will no longer be able to connect their Apple Watch to Pokémon GO.
The change is due to the addition of Adventure Sync to the app, which allows players to track their steps, earn Buddy Candy, and hatch Eggs all on one mobile device rather than having to split their gameplay between two devices.
Adventure Sync takes data from the user’s phone’s in-built health app and syncs it with the game, meaning you don’t have to have the Pokémon GO app open at all times.
The official Niantic Support Twitter states that this change won’t affect Adventure Sync or functionality with Apple Health.
Trainers, Pokémon GO will no longer be supported on Apple Watch as of July 1st. This will not affect Adventure Sync or functionality with Apple Health. See our article for more information: https://t.co/EcryOww8iB
— Niantic Support (@NianticHelp) May 31, 2019
Niantic are also discontinuing support for Android 4 KitKat. Only people who have devices with Android 4 installed will be affected by this change.
If you’re using a device that’s running Android 4, you can easily solve this problem by updating your OS to Android 5 or above.
The Pokémon GO Plus + accessory functions as a normal Pokémon GO Plus (which is the Bluetooth bracelet device already available) during the day and can be put next to your pillow at night, sending your sleep information to your phone.