A quick sound comparison and bass performance of the he Flip Series line up, that being the 3rd Gen Flip 3 and 5th Gen Flip 5 by JBL
Personally to me the Flip 5 still sounds clean, and has better bass response, the JBL Flip 3 on the other hand lacks low end bass, but has stereo separation to substitute for the lack of low end it's not able to produce at least not on it's default EQ Bass boost set but JBL themselves as with all JBL's portable Bluetooth speakers.
other than that Enjoy the video :)