I have an iphone 4s bought a few years ago from ebay used thats unlocked. The reason i bought it used was because i wanted a 4s and the condition was excellent. They didn't have it new and i didn't want any bigger phones. My iphone 4s has a ton of issues and i will need to get a new iphone. First off, i updated the ios few times and that could have caused it. But the battery went bad. Battery would go out at 18 percent or even 40 percent etc. so i went to a repair shop and they installed a new battery. Well even after they did that, the battery drained very fast. The other thing was the battery could not hit 100 percent anymore. When it did hit 100 percent, the battery would drain so fast where it goes to 50 percent in 30 minutes max etc. So with this new battery, it still went out fast. Besides that, my iphone has issues connecting to a laptop. I read its a connector issue where you connect usb to it. Well i went to a phone repair shop and my first issue was of course that... but my battery went bad. They put in a new battery and also repaired the dock? The first time i got battery replaced it was 30 or 35 dollars. This time, i think it was 20 or 25 for the dock and 20 for the new battery. I went to those small phone shops so i believe the battery isn't real? Thus i would need to get a real battery from apple? But do most people do that? I did read getting the battery from ebay with the do it yourself kit thats what most people do. But did those batteries my iphone was replaced with, could they be worst than the ebay ones? I never did a iphone reset but should i try this instead? I didn't do this earlier because i didn't want to erase everything on my iphone. The other issue is this iphone lags so much. For most people, this would be unbearable and for me, its as close as you can get. I need to get a new iphone and it has to be unlocked since i use it outside the usa. From looking at the iphones, is the iphone se probably the best choice? I do like the small iphone 4s size and never had a big phone and i saw iphone 5 or 6 is bigger. And i want to stick with apple. So based on this, should i just order the iphone SE? Also how much does it cost total with tax? Also, why is the 64gb and the 16gb price difference so little? Even if someone doesn't use phone much, isn't 64gb almost mandatory? I don't mind spending a good amount on a phone and i hear the iphone 7 came out. but im not that type of person where i need the most updated gadgets as thats not what i am. Thus if my iphone 4s still worked like when i first got, i would not even consider getting a new iphone as it suits me fine. But from battery issues... it goes out very fast now and charges only up to 90 percent then quickly drains... to the lagging, i cannot use this phone anymore. I think even if i did a reset and got a new genuine battery, i still get a new iphone.