If you want wireless listening, adaptive noise cancellation, and an easier fit for changing surroundings, choose Bowers & Wilkins FP39691; if you need a wired open-back planar headphone for focused music listening, choose SENDYAUDIO Apollo Open-Back Planar. For nurses, the Bowers & Wilkins is the more practical of these two on paper, while neither should be mistaken for a work headset with a specified microphone.
Bowers & Wilkins FP39691 vs SENDYAUDIO Apollo Open-Back Planar at a Glance
• Bowers & Wilkins FP39691: Its biggest strength is flexible wireless listening with adaptive noise cancellation and up to 22 hours of battery life with Bluetooth and ANC; its trade-off is that its battery, Bluetooth connection, and app-based firmware are part of the experience.
• SENDYAUDIO Apollo Open-Back Planar: Its biggest strength is its 68 mm planar magnetic driver and wired, open-back design aimed at detailed music listening; its trade-off is that it has no noise control and requires a wired connection.
• For nurses: The FP39691 is the more adaptable option for breaks, commuting, and listening around changing environments, though the provided specifications do not list a microphone or workplace communications features.
• For a quiet listening space: Apollo makes more sense if the priority is a wired planar design and music-focused listening rather than wireless convenience.
• Choose Apollo if you are comfortable staying wired and want an open-back planar headphone for attentive listening.
Bowers & Wilkins FP39691: Who It's For
The FP39691 is the more versatile headphone here. It supports Bluetooth 4.1, active noise cancellation, and wired listening through a 3.5 mm jack, with a headphone cable included. Its adaptive noise cancellation is designed for changing environments such as an office, street, or plane. That flexibility is useful if your listening moves from a quiet room to a busier commute during the day.
Its practical details stand out more than any single sound claim. The headphone can pause when an ear cup is lifted, sleep when set down, and resume when picked up. Battery life is listed as up to 22 hours with Bluetooth and ANC, up to 29 hours with Bluetooth without ANC, and longer in wired modes: up to 33 hours with ANC or up to 50 hours without ANC. Those figures give a buyer options, but they do not make this a purpose-built headset for work calls.
I would choose the FP39691 if I wanted wireless convenience, noise cancellation, and the option to switch to a cable. Nurses looking for neckband headphones for nurses should note that this is an over-ear headphone, not a neckband. And anyone shopping for the best with microphone wireless headset for nurses should look elsewhere unless a microphone is confirmed: the supplied specifications do not list one. The same caution applies if you mean bluetooth headphones for nurses specifically for clinical calls or communications.
Apollo is a more specialized choice. It uses a 68 mm planar magnetic driver and has a wired connection, with two 2.5 mm headphone connections and a cable. Its open-back design is the defining trade-off: the product information specifies no noise control, so it is not aimed at blocking surrounding sound. That makes it a poor fit for noisy environments or situations where you want audio to stay isolated.
The stated frequency range is 20 Hz to 40 kHz, compared with the FP39691’s listed 20 Hz to 20 kHz range. That figure describes the published range, not a guarantee that every listener will hear a particular difference. Apollo’s product details emphasize vocals, bass, treble, and a clear soundstage; I would treat those as the intended listening character, not as a substitute for personal preference or a direct listening comparison.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-23 · 12 min read · Independent comparison
I would consider Apollo for home listening when I want to stay wired and give music my attention. Its wood housing, steel mesh detailing, and ergonomic headband give it a distinct physical design, while the one-year warranty is a concrete ownership detail. I would skip it for commuting, shift work, or any setting where noise cancellation and wireless freedom matter more than an open-back planar format.
Side-by-Side: Which Should You Choose?
• Best for wireless listening → Bowers & Wilkins FP39691. Apollo is wired; the FP39691 supports Bluetooth 4.1 as well as a wired 3.5 mm connection.
• Best for adaptive noise cancellation → Bowers & Wilkins FP39691. Apollo has no listed noise-control feature.
• Best for an open-back planar design → SENDYAUDIO Apollo Open-Back Planar. It uses a 68 mm planar magnetic driver and is intended for music-focused listening.
• Best for longer listening without depending on Bluetooth → Bowers & Wilkins FP39691. Its listed wired modes run up to 33 hours with ANC or up to 50 hours without ANC, though the headphone still has a rechargeable battery.
• Best for a wired setup without battery figures in the listening equation → SENDYAUDIO Apollo. It is wired and has no battery listed.
• Best for a commute or changing surroundings → Bowers & Wilkins FP39691. Bluetooth and adjustable noise cancellation better suit movement between quieter and busier places.
• Best for attentive music listening at home → SENDYAUDIO Apollo. Its planar driver and open-back construction fit a stationary, focused listening setup better than a need for isolation.
These differences matter more than the headline driver type or frequency range. If the headphones need to work in a shared room or on a commute, the FP39691’s noise cancellation and wireless option address those needs directly. If you mostly listen in a settled environment and prefer a wired planar model, Apollo’s design is more closely aligned with that routine.
My Verdict
I would choose the Bowers & Wilkins FP39691 for nurses who want headphones for commuting, breaks, and personal listening across different environments. Bluetooth, adaptive noise cancellation, automatic pause behavior, and wired fallback make it the more flexible pick. Apollo is the more focused option for wired, open-back planar listening at home, but that is a narrower use case. For a work headset with a microphone, I would verify that feature before choosing either one.
The FP39691 supports Bluetooth 4.1 and also has a wired 3.5 mm connection. Apollo is a wired headphone with two 2.5 mm headphone connections.
The FP39691 has active, adaptive noise cancellation. Apollo lists no noise-control feature, so it is not the choice here for reducing surrounding noise.
The provided product details do not specify a microphone for either model. If calls or clinical communications are essential, confirm microphone support and workplace suitability before choosing.
Choose Apollo if you want a wired, open-back planar headphone for listening in a quiet setting. Choose the FP39691 if you also want Bluetooth, noise cancellation, and the option to listen by cable.
verdict
The main difference is how each is designed to be used. The FP39691 offers Bluetooth, active noise cancellation, and automatic pause behavior; Apollo is a wired planar headphone with no noise control. This is a choice between everyday flexibility and a more focused listening setup.
Bowers & Wilkins FP39691 vs SENDYAUDIO Apollo Open-Back Planar at a Glance
• Bowers & Wilkins FP39691: Its biggest strength is wireless listening with adaptive noise cancellation and up to 22 hours of battery life with Bluetooth and ANC. Its trade-off is that Bluetooth and noise cancellation depend on a rechargeable battery.
• SENDYAUDIO Apollo Open-Back Planar: Its biggest strength is a 68 mm planar magnetic driver in a wired, open-back design. Its trade-off is the lack of noise control and wireless listening.
• For nurses: The FP39691 better suits commuting and personal listening during breaks, but its listed details do not confirm a microphone or work-call features.
• For focused listening at home: Apollo is the more natural fit if you want a wired planar headphone and do not need noise isolation.
• Choose the FP39691 for Bluetooth, adjustable noise cancellation, and the option to listen by cable.
• Choose Apollo for a wired open-back design aimed at music listening.
The FP39691 is the more flexible of these two headphones. It supports Bluetooth 4.1, active noise cancellation, and wired listening through a 3.5 mm jack. Its adaptive cancellation is intended for changing surroundings, including an office, a street, or a plane. That combination may appeal if you want one pair for different parts of your day rather than a headphone dedicated to a quiet room.
It also has features designed to reduce small interruptions. Lifting an ear cup pauses playback; setting the headphones down puts them into sleep mode, and picking them up resumes listening. Battery life is listed as up to 22 hours with Bluetooth and ANC, up to 29 hours with Bluetooth without ANC, and up to 33 hours with ANC in wired use or up to 50 hours wired without ANC. The FP39691 also has an accompanying app for firmware updates.
I would choose it for wireless convenience, noise cancellation, and the option to switch to a cable. Nurses looking for neckband headphones for nurses should note that this is an over-ear model, not a neckband. If you are searching for the best with microphone wireless headset for nurses, the specifications provided do not list a microphone, so I would verify that feature before buying. The same caution applies if you want bluetooth headphones for nurses specifically for work calls.
Apollo is the more specialized option. It uses a 68 mm planar magnetic driver and connects by cable, with two 2.5 mm headphone connections. Its open-back construction is a key part of its identity, but the product information lists no noise control. I would not choose it for a commute or a setting where blocking surrounding sound is important.
The listed frequency range is 20 Hz to 40 kHz, compared with 20 Hz to 20 kHz for the FP39691. Those figures describe the published ranges; by themselves, they do not predict which headphone a particular listener will prefer. Apollo is described as designed for natural vocals, solid bass, clear treble, and a transparent soundstage. I would take those as the intended listening character rather than a guarantee of how it will sound to every person.
I would consider Apollo for music listening in a quieter space, especially if I wanted a wired planar model and did not need Bluetooth or noise cancellation. Its wood housing, steel mesh detailing, and ergonomic headband give it a distinctive design, and the listed warranty is one year. I would skip it for noisy environments, mobile listening, or work situations where wireless convenience and sound isolation matter more.
Side-by-Side: Which Should You Choose?
• Best for wireless listening → Bowers & Wilkins FP39691. It supports Bluetooth 4.1; Apollo is wired.
• Best for an open-back planar design → SENDYAUDIO Apollo Open-Back Planar. It has a 68 mm planar magnetic driver.
• Best for flexible wired and wireless use → Bowers & Wilkins FP39691. It supports Bluetooth and a 3.5 mm wired connection.
• Best for a wired listening setup without a listed battery → SENDYAUDIO Apollo. It is wired, with no battery specified.
• Best for commuting or changing surroundings → Bowers & Wilkins FP39691. Bluetooth and noise cancellation better match those needs.
• Best for nurses’ personal listening on breaks → Bowers & Wilkins FP39691. It offers wireless listening and ANC, but no microphone is specified.
• Best for focused listening in a quiet room → SENDYAUDIO Apollo. Its wired, open-back planar design is better suited to a stationary listening setup.
The choice comes down to the environment as much as the audio design. If you expect to move between a quiet room and a noisy commute, the FP39691’s noise cancellation and wireless connection address those needs. If you mostly listen in one place and prefer an open-back planar format, Apollo is the more targeted choice.
My Verdict
I would choose the Bowers & Wilkins FP39691 for nurses who want headphones for commuting, breaks, and personal listening in changing surroundings. Bluetooth, adaptive noise cancellation, automatic pause behavior, and wired listening make it the more versatile pick. Apollo is better suited to focused, wired listening at home. For a work headset with a microphone, I would confirm that feature before choosing either model.
The FP39691 supports Bluetooth 4.1 and also has a wired 3.5 mm connection. Apollo is wired and has two 2.5 mm headphone connections.
The FP39691 has active adaptive noise cancellation. Apollo lists no noise-control feature, so it is not the better fit if reducing surrounding sound is a priority.
A microphone is not specified for either product in the available details. If calls or clinical communication are essential, confirm microphone support and workplace suitability before choosing.
Choose Apollo if you want a wired, open-back planar headphone for a quieter setting. Choose the FP39691 if Bluetooth, noise cancellation, or the option to listen by cable matters more.
• JLab JBuddies Studio vs Fragolucyou Headphones-Colorful Light
• best bluetooth headset for studying
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.