While the Samsung Galaxy range has been hugely popular, the user interface has been a constant bone of contention. Earlier models like the S4, S5 and S6 came with TouchWiz, which featured garish colours, way too many pre-installed apps, and generally could be a bit of a mess.
By the end of 2016, Samsung had fine-tuned and slimmed down the interface to the point where it was renamed the Samsung Experience. This has been the smoother software that users of the S7, S8, Note 8, S9, Note 9 and Plus models have enjoyed ever since.
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Now, things have changed again. One UI marks a new approach for Samsung, making it easier to use devices single-handed, helping you to focus on one thing at a time, alongside improvements to the general experience.