USING IOS 10.1.1 VERSION IN MY IPHONE 5S IS REALLY A WONDERFUL EXPERIENCE.
AFTER UPGRADING IOS TO 10.1.1 I THINK U CANNOT SPOT ANY OPERATING DIFFERENCE BETWEEN IPHONE 7 AND IPHONE 5S. USING IOS 10.1.1 I THINK THAT I HAVE IPHONE 7 IN MY HAND NOT IPHONE 5S. REALLY UNIQUE FEATURES AND COMPARATIVELY FASTER THAN PREVIOUS VERSIONS. U CAN USE SIX DIGIT PASSCODE IN IOS 10.1.1. I THINK IPHONE COULD BE RATED AS 9.1, 9.1.1-10.1.1 RATHER THAN IPHONE 4S, 5S, 6-7 PLUS. I COULD SAY THAT IT’S A HALLOWEEN UPDATE.