M30s is the first key contender in budget phone category to Redmi, Vivo.
Have used it for more than two months now
Advantages
1) Nice sleek design
2) Capacitive screen very responsive
3) Audio speaker is great. No distortion
4) Face detection & fingerprint sensor are very responsive. Quick to unlock the phone
5) Video quality is good
6) Main camera image quality is good. Photos taken do not blur after zooming
7) Display is readable in bright daylight
8) SAR value is low compared to most Chinese phones
Disdavantages
1) Battery -6000 MAmp drains out very fast. Similar phones with 4000 MAmp last longer
2) Mobile is a bit heavy
3) Heats up with continuous use like internet browsing or tethering
4) Mine is a 4GB memory but at any point only 1.4GB is available as apps are running in background. I have not downloaded any app from play store. Only using original apps provided by Samsung
Its a good budget phone when bought with cash back. But not a value for money at its original price. Its ok for those who do not put it to rough use