I think obviously MI band 6 has much more features but it also on our personal need that we want it or not. For example I have a MI band 4 and it has all the features I want and if I buy a MI band 6 then also I would use those features only which I use now in my MI band 4.That was my opinion
I have several ideas
-the new normal(live after covid)
-famous Indian YouTube creators theme(BB ki vines,mythpat
Slayy point, triggered insaan,tanmay bhat,ashish chanchalani )etc
-u can also make a study inspired theme as my examinations are close ??