Well its the one I could afford which had a brilliant off and had everything I wanted in smart phone, The better battery life ones cost way more monthly than I could afford, though I read some of the forums on here a one person said that the lower the charging the safer your battery is as faster can damage batteries.
I guess it not that bad but its slightly annoying.
I got a monthly contract of 300mins 5000 texts and 4GB 4G for £21 a month with no upfront cost so I'm happy with that, even the guys at the store were surprised by that offer and of how good it was.