Yep! I have a 4s, I couldn't justify the jump to a 5s when I was eligible, even though at that point my 4s was getting pretty slow, bad battery, etc. I rocked the 4s for 3 full years, cracked and replaced the screen once (in the 3rd year) and cracked it again about a week and a half ago (wasn't using a case). I AM worried about the jump in size, but I'm sure once I adjust to it it will seem normal.