piggy .. sorry for not getting back sooner and no I wasn't taking the pea !
Smart phones dont have to be expensive and you can get 1000s of apps for free from play store, if you get an Android phone. The £35 quid phone is here ..
http://www.hotukdeals.com/deals/vodafone-smart-speed-6-35-tesco-direct-was-40-2400908
Personally I have a Moto g 4th generation ( it has a great camera) but I always buy my phones with Tesco clubcard points and get it for half price.
If you intend to spend your day watching you tube clips and streaming you will be better on a pay monthly contract
There are plenty good deals on call/data/ text plans and if you are not a big user you can easily run a phone for less than a tenner a month.
If you are unsure just go on PAYG to start with .. you can cancel most plans with 30 days notice. When you come to cancel they often make you an offer asking you to stay and commit to a 12 month contract. These offers are normally very attractive.