Bowers & Wilkins FP45756

Audiophile dream sound wrapped in a package that's annoyingly unpolished. At $139 it's a ridiculous bargain for the sound alone. If you put music above all else, buy it; if you want a no-headache experience, walk away.

What surprised us most is how B&W crammed reference-level audio into something this tiny. Out of the box, the Pi6 delivered a huge, airy stage and instrument separation that challenges the Sennheiser MTW4 — and that's not a compliment we toss around. But the bubble bursts when you move: Bluetooth dropouts plagued our testing whenever the phone was in a pocket or bag, something we didn't see with the Sony WF-1000XM5. And while our database ranks ANC at the 97th percentile, real owners consistently say it's just adequate — quiet cafes fine, bus engine roar still present. The sound brilliance is undeniable, but the rough edges are impossible to ignore.

The obvious rival is the Sony WF-1000XM6: Sony delivers better ANC, a more reliable connection, and longer battery life, but its sound can't match the Pi6's air and separation. Sennheiser's Momentum True Wireless 4 comes close in audio fidelity while being far more polished overall, and its call quality actually works. The Samsung Galaxy Buds3 Pro are a smarter pick if you want great sound without the connectivity headaches, and the Apple AirPods Pro 3 offer a seamless experience for iPhone users. Bose QuietComfort Ultra get the noise cancelling crown but sound a bit clinical next to B&W's warmth. For pure sonic bliss, the Pi6 is a gem; for everything else in one package, the Sony or Sennheiser are smarter buys.

At $338 this thing is a tough recommend; at $139 it's a genuine steal if you worship sound. The price spread across stores is wild, so hunt for that low end. If you pay more than $200, you're leaving money on the table given the compromises.

The Bowers & Wilkins Pi6 is a rare beast: a true wireless earbud that sounds so good it'll ruin your over-ear headphones for a week. That 12mm bio-cellulose driver is no marketing fluff — it pulls detail and soundstage out of tracks you thought you knew. And while the spec sheet screams premium (aptX Adaptive, 24-bit audio, 97th percentile ANC), the real-world experience unearths a pile of small frustrations that chip away at the joy. If you can live with finicky connectivity and a case that feels cheaper than a $30 earbud, the sound will hook you. For everyone else, it's a tougher sell.

If you need rock-solid connectivity on a run, microphone quality that won't embarrass you on a call, or battery life that lasts longer than a workday, skip these. The Sony WF-1000XM6 is a far more polished all-rounder that still sounds excellent. Samsung Galaxy Buds3 Pro are another strong alternative with fewer frustrations. And if sound is truly your only god, consider the Sennheiser Momentum True Wireless 4, nearly as brilliant sonically but with far fewer headaches.

Bowers & Wilkins created a flawed masterpiece. The Pi6 is for the listener who will forgive every connection hiccup and that questionable case because the music moves them in a way the Sony or Bose simply can't. If that's you, grab it at the lowest price you can find and don't look back. For anyone who needs a dependable daily driver for calls, commutes, and workouts, the WF-1000XM6 is the safer bet.