Ultimate Ears MEGABOOM 3 vs MEGABOOM 4

Externally, the Ultimate Ears MEGABOOM 3 and Ultimate Ears MEGABOOM 4 look a lot alike. Their specs are nearly the same except for the updated USB-C charge port on the MEGABOOM 4 and the ability to skip back a track. The MEGABOOM 4 has a bit more low-end extension, and it sounds somewhat better and more balanced. That said, it doesn't get quite as loud as the MEGABOOM 3, which uses an older micro-USB charge port, and it sounds less detailed in the highs. However, both have EQ, and they're not too dissimilar sounding overall.