Testing:
One thing I was a little disappointed to not see on the K3 was any sort of recording ability. My current Samsung MP3 player, the YP-T7, has the ability to record from both a small built-in mic and a line-in. The mic comes in handy for recording lectures or making quick voice notes on the go. For those who use these sort of features, they will be missed on the K3.

In terms of overall navigation and usability, I was easily able to find my way through all the menus and features when using the K3. The different sound modes are excellent for those who want to tweak listening to best suit their music and listening style preferences.

Conclusion:
Overall, I think Samsung has a solid MP3 player on their hands with the K3. It's very thin profile allows it to be tucked away virtually anywhere. With a few different colours and memory size's available, it's guaranteed to hopefully find a niche in every crowd. If you're out and about and want a different listening choice, I love the way Samsung has still kept the FM radio alive by having a tuner built into the K3. The OLED screen is big enough that pictures can be comfortably viewed and of course the menu system is stylistic in itself. I would have liked to see some sort of video playing option with this player, as a lot of larger colour screened MP3 players are starting to have this. I don't think including a mic/line recording ability would hurt either for those who liked to double their player's functionality when on the go. But in the end, the K3 is yet another solid MP3 player from Samsung and I do highly recommend it to anyone currently shopping around for a new MP3 player with these features!

Pros:
Sleek and luxurious styling
2gb and 4gb models available
Photo viewer
FM Radio
Easy to use interface

Cons:
Fingerprints easily seen on touchpad
No video playback
Mic and/or line-in recording ability would be nice