Higher refresh rates can also make screens easier on the eyes by eliminating the jerkiness of fast scrolling. Display: Most people spend several hours every day looking at their smartphone screen, so it should remain sharp and easy to read, even outdoors.Your smartphone will also end up containing a lot of personal data, so security is important-a phone that ships with outdated software, doesn’t receive security patches, or has a documented history of security flaws is not a good purchase, no matter the price. We like phones that have fewer carrier modifications and apps preloaded by manufacturers, because phones without them tend to run better and are easier to use. Software: A clunky version of Android can ruin your experience, and even the most powerful hardware doesn’t matter if the software runs poorly.Most flagship Android phones use similar processors, so performance differences are largely due to software. Performance: A great Android phone should feel snappy whether you’re playing a game or just swiping through the interface.