mjc and glyn - you are fortunate to have knowledgeable offspring! I have no family and I don't think there is a 'borrow a geek kid advisory service'!

I had almost decided what to get last night but it won't arrive before I go away camping on Friday so will wait until I get back. I thought I had temporarily solved my immediate problem (battery going flat way too quickly) by getting a new one put in in a local shop yesterday, but it is even worse and he will have disposed of my old one!

I don't use my phone a lot but I will be lost if it fails when I am away as it is most useful for finding campsites and directions. How did I ever manage before we had smartphones?!   I just hope it will get me through with the help of 3 power banks and a car charger.  You are right about charging leads, some fail after a very short time. I usually buy 3 or 4 at a time and am down to the last 2 and there is only one kind that fits an iphone 4  Network phone shops haven't kept accessories for iphone 4 for at least 2 years. I tried to get a spare battery in Sheffield a couple of years ago and they laughed!

Thanks for the various suggestions.  I will decide eventually! I know I don't want a phablet or something which will need a bag or sherpa to carry around, but prefer something small that will go in a pocket. I have only ever had one smartphone (Apple) but might try an Android phone.  Xperia do some compact versions with a decent camera that might suit.