The visable screen is 100mm x 50mm I've dropped it a few times, still working . Got mine as a payasyougo tesco then had it unlocked to work on a French sim
I just buy whatever Samsung Galaxy is on eBay for about £100 with a battery and a guarantee and use that on a £16 pay monthly O2 SIM-only contract . And invest in a solid plastic case for it so when I drop it it does not break. I like nearer 4" screen diagonal not bigger at the moment. So far a Galaxy S2 and a Galaxy S3. Both Apple and Samsung want too much money for new phones - about $950 for the top of the range S7 and iPhone6S , which you pay in monthly installments on any contract over £10 a month. The Galaxy S7 costs as much per month as the first Vodaphone I ever saw at £69 a month back in the 1990's , but the phone calls are half the price at 35p a minute (once you use your free allowance) instead of 69p a minute back in the 90's. But they are all a lot smaller than the first GSM demonstrator phone I saw in the 1980's which took the place of the front passenger seat in a Jaguar. It killed the car battery when it was on but it did not work when the engine was running because of the interference. I talked on it to somebody on the south bank of the Thames from beside the IEE at Savoy Place on the Embankment.
I have to say I'm loving this phone I just talked to her to print all this crap and for you to read what could be better? By the way I said it not her.
I thought I'd have to type all the crap on a stupid little keyboard on the screen to find out I can just talk to it like an idiot even like half matisa missing and it just comes out fine and is quite amazing even after a couple of Scottish whiskys.
got an experia m3 payg does everything i want of it including water proof ( not likely to fully test it but it did ok in a puddle of beer ) best feature i found on it was tethering to me samsung tab2 "super"
Its only good because they have an English actor as one of the main characters. I love it best show ever