what is the difference between jbl 3 and 4?
And yet there are indeed differences between the two speakers. The JBL Flip 4 has a battery life of 12 hours, while the JBL Flip 3 has a battery life of 10 hours. Also, the Flip 4, with its waterproof design, is not broken when it falls into the water. The Flip 3 is only resistant to water splashes.