As we know that that micromax is serving to us from last 7-8 year and it is trusted phone brand And Yu yureka black is a very good phone with 3000 mAh battery which is very good
It comes up with fingerprint in the front face which makes phone design more attractive.
I would prefer it to buy it as phone price is more than feature as you can get 4000mAh battery in same price with Redmi 4 or 4A