My height is 6'2”, So I will feel comfortable on Honda Navi or not?

You would be comfortable on Honda Navi irrespective of your height but the person sitting behind you will have to face a lot of difficulty. If you would only be riding it then you can easily go for it otherwise, the second person would have to struggle for both space and comfort. So, if you are buying it for two people sitting comfortably, then go for a bike with seat height around or above 820 mm.