Currently i also wondering , which model should I pick ,
I been using ip4 until now , i think is time to get a upgrade ,
feel the ip4 is abit lagging, I always think that apple IOS is the best not because of the phone spec , because of the software very much link perfectly with the hardware .

I just measure the size , i cut a paper following the apple official website , the ip6 is almost same with my dad samsung galaxy s3 , and the 6+ is way taller and abit wider then s3 , i also think ip6 is better to hold

Argh !! I like the Image stabilizer build in ip6+ And the 2m pixel ,
But i like the ip6 size , hard to pick