We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-06 · 7 min read · Independent comparison
If you want a true wireless in-ear headphone built around aptX Adaptive for streaming music, calls and video on the move, choose Bowers & Wilkins Pi3; if you need to turn an airplane's 3.5mm seat-back jack into an aptX Adaptive wireless feed you can share with a travel companion, choose Blue Air Airplane. Those are two completely different jobs, and the aptX Adaptive badge on each one means something different depending on which end of the chain you're standing on.
• Bowers & Wilkins Pi3 — biggest strength: a hybrid dual-driver setup (a balanced armature for highs plus a separate dynamic driver for mids and lows, each with its own amplifier) fed by aptX Adaptive, so streaming sources get a genuinely layered sound rather than a single full-range driver doing everything.
• Bowers & Wilkins Pi3 — biggest trade-off: the 8-hour battery is a single-session figure with no charging case mentioned in the specs, so marathon listening days need planning around the 15-minute quick charge.
• Blue Air Airplane — biggest strength: it makes any 3.5mm aux jack wireless, supports aptX Adaptive, aptX HD and aptX Low Latency, and runs 30 hours on a charge so it outlasts the longest flight you're likely to take.
• Blue Air Airplane — biggest trade-off: it is not an earbud at all — it's a plastic transmitter with no drivers of its own, no water resistance, and it does nothing for you once you're off the plane and away from a wired source.
• Who each pick is for: the Pi3 is for someone who wants one pair of in-ears to stream everything, everywhere; the Blue Air is for the traveler who already owns good wireless headphones and wants them to work with in-flight entertainment.
The Pi3 is a neckband-style in-ear headphone, and that shape is the whole story. A rigid neckband with soft, rubber-coated earbud cables keeps the electronics and battery off your ears, which is why Bowers & Wilkins could fit a hybrid driver arrangement into something this small. A balanced armature handles the high frequencies while a dynamic driver covers mids and lows, with separate amplification for each. In practice that's the kind of design that keeps vocals and cymbals from getting smeared by bass — useful if you stream a lot of mixed material rather than one genre.
Who should buy it: someone who wants a single pair of in-ears for commuting, working out, calls and streaming, and who values the fit security of a neckband plus the fit kit that ships in the box (small, medium and large ear tips and stability tips). Who should skip it: anyone who wants a truly cable-free experience, anyone who needs more than 8 hours between charges without stopping, and anyone who specifically needs a waterproof rating — the Pi3's enclosure is rubber and silicone for grip and comfort, not for swimming or heavy rain. If you're hunting for the best IPX7 waterproof Bluetooth earbuds for streaming, this isn't that product, and I'd rather tell you that plainly than let you find out the hard way.
Blue Air Airplane: Who It's For
The Blue Air Airplane is a different category entirely — it's a Bluetooth transmitter, not a headphone. You plug it into a 3.5mm aux jack, pair your own wireless headphones to it, and suddenly that wired seat-back screen, gym treadmill or older TV is wireless. That's the entire pitch, and for air travel it solves a real, specific annoyance: juggling a cord in a cramped seat while your own noise-canceling headphones sit unused in your bag.
The spec sheet is unusually generous for this kind of accessory. It supports aptX Adaptive, aptX HD and aptX Low Latency, so lip-sync on movies stays tight and high-definition playback works with compatible headphones. There's an OLED display that shows battery level, volume and the active codec in real time — genuinely useful, because you can see at a glance whether you're actually getting aptX or have silently fallen back to SBC. Onboard volume buttons mean you're not reaching for a phone that's stowed in the seat pocket. And the dual-link feature lets two pairs of Bluetooth headphones listen to the same source, which is the difference between one bored kid and two.
Battery is the other headline: 30 hours on a charge, with a full recharge in about 1.5 hours over USB-C, plus auto power-off to stop it draining in your bag. The 10-meter Bluetooth range is plenty for a row of seats. Reasonable expectations matter, though. The housing is plastic, it is explicitly not waterproof, and it's a shelf-mount-style accessory that lives in a bag until you need it. If you're looking for a long battery life kids headset for streaming, this is not a headset — it's the thing that lets the headset you already own work on a plane.
• Best for streaming from your phone, laptop or tablet → Bowers & Wilkins Pi3. It's the actual audio device; aptX Adaptive plus a hybrid dual driver is aimed squarely at playback quality.
• Best for in-flight entertainment → Blue Air Airplane. It converts a 3.5mm seat-back jack into a wireless signal, which is the one thing the Pi3 cannot do.
• Best for battery life → Blue Air Airplane. 30 hours versus 8 hours, with a 1.5-hour recharge versus a 15-minute quick charge that buys 2 hours.
• Best for sharing audio with someone next to you → Blue Air Airplane. Dual-link pairing for two sets of headphones is built in; the Pi3 is a personal listening device.
• Best for calls → Bowers & Wilkins Pi3. It has a built-in microphone designed for clear voice pickup. The Blue Air is a transmitter with no mic of its own.
• Best for fit security during movement → Bowers & Wilkins Pi3. The neckband, rubber-coated cables and included stability tips are designed to hold on when you're moving fast.
• Best for someone who already owns good wireless headphones → Blue Air Airplane. It extends what you have instead of replacing it.
• Best for a one-device, everything solution → Bowers & Wilkins Pi3. One purchase, one pair, no extra box to remember.
If I had to pick one for myself, I'd buy the Bowers & Wilkins Pi3. It's the product that does something every day — streaming music, taking calls, watching video — and the hybrid dual-driver design paired with aptX Adaptive is exactly the combination I'd want for that job. The Blue Air Airplane is excellent at what it does, but what it does is narrow: it makes a wired jack wireless, and only matters when you're on a plane or in front of legacy gear. Buy the Pi3 if you want your audio device; buy the Blue Air if you want your existing headphones to work in the air. Check the current price on Amazon before you commit, since that's the one variable I can't speak to.
FAQ
aptX Adaptive is a Bluetooth audio codec that adjusts its bitrate and latency based on what the wireless link can handle and what you're doing — prioritizing stability for video and higher quality for music. On the Bowers & Wilkins Pi3 it's the codec doing the receiving; on the Blue Air Airplane it's the codec doing the transmitting from a 3.5mm source.
Not for everyday listening — your headphones already handle that from a phone or laptop. You'd only want it to feed those headphones from a wired 3.5mm jack, like an airplane seat-back screen, where there's no Bluetooth source at all.
Not wirelessly, and not as a transmitter — it's headphones, not an adapter. Its connectivity is Bluetooth with a USB charging connection, so in-flight entertainment would need a separate 3.5mm Bluetooth transmitter like the Blue Air Airplane.
For a long flight, the Blue Air Airplane, purely on battery: 30 hours versus 8 on the Pi3. But if the trip is about listening to your own streamed music rather than the plane's system, the Pi3 is the one doing the actual work.
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