JBL Xtreme 3 vs PartyBox 310

The JBL PartyBox 310 is a better speaker than the JBL Xtreme 3, though they have different strengths. The PartyBox 310 is a large party speaker with a better-balanced sound profile that can produce a more extended low bass than the Xtreme 3. It can also get much louder with fewer compression artifacts at max volume, resulting in cleaner audio during louder listening sessions. That said, the Xtreme 3 is much smaller and much more portable than the PartyBox 310. It's also better built and has an IP67 rating for dust and water resistance, certifying it as dust-tight and submersible to a depth of up to 1 meter for 30 minutes.