It 100% works drowning out blue light BUT the browser on it is terrible, when you hit a button it doesnt alway hit where your finger touches, in Facebook when you open someones post you cant comment unless you open it 100 times to get the post bar to show up Even if the bar shows up when you click it sometimes it just moves the screen and makes it hard to post or message someone Half the time it wont let you save new bookmarks Id it could work as well as the safari browser and drown out blue light I would go 5 stars