My X 2015 had significant performance issues and Bluetooth would randomly stop working. They didn't upgrade from Marshmallow 6.0.0 to Nougat (7.0.0, not even 7.

My X 2015 had significant performance issues and Bluetooth would randomly stop working. They didn't upgrade from Marshmallow 6.0.0 to Nougat (7.0.0, not even 7.1) until last month. I bought an iPhone X. I love Android but most manufacturers don't seem to care about the product after you've purchased it.