Honestly speaking, fast charging is the most relevant and important feature these days in phones. You can charge your phone fully within minutes while you are getting ready to leave your home. No, Realme 3 does not support fast charging. It has a 4000mAh battery.
WiFi hotspot is a feature that allows you to simply share your data to others around you. Your device acts as a router and provides internet access to devices around you. You can use this internet on any device like mobile, laptop, tablets. It is very simple to setup the hotspot on your device. Follow this guide:
5G technology is still under trial in India.
For now, there are almost no device released in India which comes with 5G technology in practice.
So, there is still some time to wait to get 5G technology.
The Xiaomi Redmi Note 7 Pro would be a better phone than the rest of the two as it gives better processor and camera.
The Realme 3 should also be mentioned as it is much cheaper than the other two but gives great specifications.
Check out their comparison video-
Check Full Comparison Xiaomi Redmi Note 7 Pro vs Samsung Galaxy M30 vs Realme 3
The Realme 3 is the best option among them and the reason for that is-
These features are the main reason for it being the best.
Check Full Comparison Xiaomi Redmi Note 7 vs Realme 3 vs Redmi Y3
I feel Redmi Note 7S is better than Realme 3 due to the following reasons:
With so many phones in the market no doubt Redmi has become a trusted brand. Seeing all the above benefits you can go for Note 7S
For full comparison check: Redmi Note 7S vs Realme 3