Smoking Indoors advice

I just moved to a new flat. Have a park opposite so smoking outdoors is fine. But it's a pain having to go out just for a smoke. I'm thinking of buying a vape instead as its obviously healthier but what is it like odor wise. Will I be able to smoke in comfort or will they neighbours still notice?? Any vale users advice would be great. I don't smoke all the time just now and then. But I really can't risk the neighbours catching the slightest smell as the landlord as is most UK private ones a complete know head.