My very first MP3 player was a Camnex CMX850 I received as a rather cheap gift. I absolutely would not recommend that product! I filled its mere 4 GB of storage with only a tiny sliver of the music that I wanted immediate-on-a-whim access to, its user interface was clumsy and awkward, and it started to regularly freeze and crash within about a year of purchase!
I soon gave up on the Camnex CMX850 and replaced it with the 160 GB Apple iPod Classic, a product that is absolutely superior in every conceivable metric (aside from its physical size) and moreover still works perfectly to this day nearly four years later (with the exception of the standard white ear-buds that came with it)! Although it's physically bulkier than the Apple iPod Touch or Nano models, I wanted the 160 GB of storage so that I could have immediate-on-a-whim access to pretty much any song that I would ever want to listen to! I've uploaded only the audio files and album covers from my by-no-means-small music collection, and I still have another 35 GB or so of available storage to build upon in the future! Moreover, I've only had to deal with crashing and freezing when the given file I was playing was the problem and it furthermore has a great battery life! It's the perfect MP3 player for me, and as such I don't bother with uploading MP3 files to my phone or any other device!
The standard white earbuds that came with that iPod failed within two years of purchase though, and I ended up replacing them with a set of Klipsch s4i earbuds--which is another product that I also recommend! They yield superior noise isolation and a richer, more dynamic sound (especially with regards to low frequency bass)! Moreover, they come with a variety of different plastic fittings--affording a bit of customized fitting to one's ear!
These contrasts clearly demonstrates that personal electronics are one area were it ultimately doesn't pay to try saving a buck by going with some cheap knock-off brand rather than the proven leader in that particular technology! Any savings in cost are most often overtaken by a reductions in performance and durability!