At time of writing the Note 4 hasn't yet received the OTA update for Android Lollipop 5.0, instead we have KitKat 4.4.4 with Samsung's TouchWiz UI. For fans of Samsung phones the TouchWiz UI is very simple, easy to use and high configurable. The main home screen can be configured with various widgets such as the latest weather or news along with app icons for your most used apps for example. Other pages can be configured for apps or widgets, such as email for example. So you could swipe left from the home screen to see your emails without having to open the app and this follows for all kinds of widgets, including YouTube which in widget form shows a tiled view of the latest videos from your subscribed channels. The possibilities whilst we can't use the word endless, are numerous and if you like a phone to look and work just how you like it, then compared to Apple's iPhone the Samsung is in a different league.Other areas of note are Samsung's S Health incorporated with 'Coach by Signa'. This is a fully featured app that makes use of several areas of the phone such as the, UV sensor, heart rate monitor and pedometer. You can set up exercise schedules, record your weight, record your stress levels using the heart rate monitor and check the UV intensity before commencing that sunbathing session along with many other areas such as calorie intake for example. The Coach section after analysing your exercise, food intake, sleep, stress and weight levels will suggest goals to improve areas of your health it thinks are necessary. Compared to the Health app on the iPhone that was introduced with iOS 8, the S Health seems to offer considerably more usability out of the box.As we saw with our review of Samsung's Galaxy Tab S 10.5 , compared to Apple they offer a significant amount of Premium Content for free when you purchase one of their devices. This is no different here with the Note 4. Their 'Galaxy Gifts' includes a wide range of content that would normally cost several hundreds of pounds. Content such as 6 months of unlimited free music worth £60 from Deezer Music, Kick which is an excellent football app, a free book every month for 12 months via Kindle for Samsung, 3 month trial subscription to Audible, 3 months free Guardian subscription and Hancom Office 2014 to name just a few. The offerings aren't quite as vast as available on the Tab S, but still compared to rivals this is a excellent addition.Touching on another feature of the Note 4, there's also the Advanced S Pen. This has been steadily improved of late and now has a much more pen-like feel to it. The button on the side of the S Pen can be used to quickly bring up several functions such as Action Note, Screen Write, Smart Select and Image Clip, which allows you to write on the screen and save the image, select part of an image to crop and quickly take a note which can be pinned to the home screen for example. The S Note app allows you to take notes in a variety of pen styles and includes handwriting recognition along with a quick method of writing notes on images. The S Pen is a great feature and works with quite a lot of apps now, particularly useful for detailed photo editing.