I put the Bluesound Pulse Flex and Sonos Era 100 wireless speakers against each other — and it was hard to choose between ‘in-your-face bass’ or ‘richer mid-range textures’

The Sonos Era 100 on the left and the Bluesound Pulse Flex on the right in front of a pink background.

Wireless speakers are like buses. It can feel like you spend ages waiting for one, then a bunch of them turn up in quick succession. Not only have we recently seen the launch of WiiM’s long awaited Sound and Sound Lite speakers but in the closing days of 2025, we also saw the launch of the Bluesound Pulse Flex — the brand’s new mid-range hi-res wireless speaker.

Given this glut of exciting new releases, I’ve been curious as to how some of the best wireless speakers hold up against these fresh upstarts. As both devices are distinctly mid-range, the obvious comparison is with the Sonos Era 100, so I resolved to test them side-by-side to see which comes out on top.