Thank you for your continued support of Cateye products.
We have confirmed that Cateye Cycling app is unable to connect to the following devices and OS combinations.
(December 18th, 2020)

Sony Xperia8　(Android10)
Google Pixel2　(Android11)
Google Pixel3　(Android11)
Google Pixel3a　(Android11)

We will update this info as soon as we confirm compatibility on other devices.
Please click here for a list of Cateye Cycling tested devices (CC-PA400B).