[dellab49]

is the Iphone battery generally better than a Samsung Galaxy (s6)

Have you owned a Iphone and a Samsung galaxy (s6),
what is the battery life like on both, from the point of view how quickly they go from full charge 100% to say 10%

(lets assume you use them the same, in the same way, the same usage)

What tends to have a better battery usage life ?

and are you speaking from experience ?

[planetf1]

I moved from a galaxy S4 to a iPhone 6s plus.

The iPhone battery is larger, but usage is much more consistent, and longer. It's very hard to give exact figures as usage varies so much, but the key to me was that consistency and predictability. Too often a rogue app on android would go a little awol and eat a lot into battery time. iOS tends to have tighter control on background processing and suffers from this less IMO.