Okej i am a Apple fan boy (have many Apple product) But I was disappointed about my iPhone 4S battery 3 years later. Now i have about 3h on 3G with my iPhone 4S, before my 4S is dead. Today I am using a Samsung Note 3 (as prime phone) with minimum 1d 2h standby and 6h 18 min active (screentime) but I am thinking of too replace my 4S with a iPhone 5s. But I am afraid I won't have good battery and I will need too use a battery pack for iPhone 5s. So what is your battery use (screentime) on only 3G/ 4G - Ltd use with your iPhone 5S. And Try too motivated me why I should by a iPhone 5s 64GB.