IPhone SE vs iPhone 6S (NOT the plus)?

So I'm in need of a new phone soon. I used to be an Android person, but none of their phones are appealing to me right now.
I currently have the iPhone 5 and the battery only lasts for a maximum of 2 hours, even airplane mode can't save it.
I'm looking for a phone with great picture quality, great battery life, and fast speed.
I understand that the iPhone SE is the cheaper option, but after using my friend's iPhone 6S I think I like the bigger screen more.

Any ideas?

Well if you like the bigger screen then go for the 6S

The iPhone 6S is the best choice becuz it has more features than the SE like for example force touch.

If you like the bigger screen then go for the 6S. There isn't a big difference between them, 6S is slightly better with having the 3D Touch Screen and second gen Touch ID vs the first gen Touch ID on the SE.