How would you sterilize baby bottles? Using the conventional Way of boiling water or using a UV Ray sterilizer? What is the difference? #parenttown

I'm using pigeon rapid sterilizer. Fast as the name indicated. Unless it gives way, else will just continue to use it. Conventional way by boiling is fine too but to me, it's more of a hassle. I'm a lazy person who prefers to go for convenience. Basically all ways help to kill germs.