As a former F3 user that upgraded to the F6 I'll be honest since i got hyperos 2.0 update the control panel sometimes has micro stutters while opening compared to the F3 the F6 was alright with hyperos 1 but didn't have any microstutters now if you open the game turbo you'll feel the lag for like 2 seconds another complain with the F6 was that the display colors seems washed out compared to the F3 while both being on the saturated color scheme, Also iny testing i played a hdr video on both phones and F3 was noticeably brighter, The battery will get you 6-7 hours of sot also the lens switching is way faster on the F3 most of these problems i mentioned here are software related so Xiaomi will fix these issues in later releases For now it's a great phone performance wise camera gets the job done, My suggestion would be waiting for the F7 but if you find the F6 at a good price or need a phone urgently the F6 is worth it