Samsung Galaxy Note 4 review: big, powerful and now metal | Technology | theguardian.com. I couldn't resist upgrading to the Note 4 the other day. It's in my nature. But, I didn't expect to be blown away by it. The screen is orders of magnitude better and brighter than any other mobile phone screen I have ever seen. KitKat 4.4.4 is smooth as butter, and the new SPen is so responsive that I am going to start taking notes on it during client conferences rather than using my tablet or yellow pad. Finally, the fingerprint scanner works great, and nobody will get into my phone without the tip of my finger. I am not disclosing which finger either. So, if you want to find out what SWMBO has put on my to do list, you will have to kidnap me.