By last year my 6Plus got really slow and sluggish with the release of iOS11 to the point it was barely usable for me. Switching between apps took ages and some

By last year my 6Plus got really slow and sluggish with the release of iOS11 to the point it was barely usable for me. Switching between apps took ages and somestimes i waited seconds for the Keyboard top pop up. Hopefully iOS12 will be better for old devices. In the end I got a good deal on a used 7Plus and am happy with that.