If you want wired, musician-oriented listening for swimming, choose NFACOUS NM20; if you need a watch that carries its own wireless earbuds for swimming, choose HYDZXINGW Watch. The important distinction is that one is a wired in-ear monitor, while the other combines a smartwatch with Bluetooth earbuds. Neither product sheet specifies a swimming rating for the earphones, so treat swimming suitability cautiously rather than assuming either is made for use in water.
NFACOUS NM20 vs HYDZXINGW Watch at a Glance
• HYDZXINGW Watch strength: A smartwatch with earbuds stored in the watch and described as charging automatically in their compartment. Trade-off: The listed water-resistance depth is 1 meter, and the sheet does not establish that the earbuds are suitable for swimming.
• NFACOUS NM20 fits: Listeners who prioritize an in-ear monitor for music, monitoring or mixing and have a compatible 3.5 mm jack.
• HYDZXINGW Watch fits: People who want wrist-based activity and phone functions alongside a built-in place to carry and charge wireless earbuds.
The NFACOUS NM20 is the more focused listening option. It uses one dynamic driver and has a wired 3.5 mm connection, so there is no separate wireless pairing step for the earphones. The listed frequency range is 20 Hz to 40 kHz, and the product information describes attention to low-frequency performance below 100 Hz alongside detailed sound. Those figures describe the design; they do not guarantee that every listener will prefer its tuning.
Its musician-oriented purpose is part of the appeal. NFACOUS describes the NM20 for monitoring and audiophile listening, and the product sheet lists 25 dB of passive sound isolation. The ergonomic design, rounded in-ear tips and four included tip sizes—XS, S, M and L—give buyers options for finding a more suitable fit. The cable uses a 0.78 mm, 2-pin connector, and the package includes a storage box and a 6.35-to-3.5 mm adapter. That adapter is useful when connecting to equipment with a compatible 6.35 mm socket.
The NM20 makes more sense for someone who wants wired listening and a straightforward earphone rather than a wrist device. It may suit a musician, a listener who prefers a physical cable connection, or someone who wants an in-ear monitor for focused listening. A 32-ohm impedance and 108 dB sensitivity are listed, but buyers should still check that their playback device has a compatible 3.5 mm output.
Who should skip it: Skip the NM20 if you need wireless earbuds, smartwatch health tracking or a product specifically confirmed for swimming; the sheet does not provide a swimming rating.
The HYDZXINGW Watch, also identified as the D8 pro, takes a different approach: it combines a touchscreen smartwatch with wireless earbuds stored in the watch. The earbuds are described as Bluetooth 5.3, with touch controls, a voice assistant, call and music functions, and automatic charging when placed in the watch’s storage compartment. That setup is aimed at convenience. You carry one watch-and-earbud arrangement instead of keeping a separate earbud case in your pocket or bag.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-22 · 7 min read · Independent comparison
The watch side adds features the NM20 does not offer. Its screen is listed as 2.01 inches, and the product information describes call handling, SMS reading, phone-camera control, reminders and several activity-related functions. The listed metrics include distance, step count, heart rate, calories and sleep duration. The watch also has a 240 mAh lithium-ion battery, with a stated average battery life of 10 days and a charge time of two hours. Actual use of its functions can affect how long a charge lasts; the sheet does not detail a use pattern behind that figure.
For someone who wants a watch with bundled earbuds for calls, music and everyday activity tracking, this is the more feature-packed choice. The watch is not a medical device, and its health data is for reference rather than diagnosis or treatment.
Who should skip it: Skip the HYDZXINGW Watch if your priority is a wired monitoring earphone or you need clear confirmation that the earbuds themselves are suitable for swimming.
• Best for wired listening → NFACOUS NM20. It has a 3.5 mm jack connection and a 0.78 mm, 2-pin cable rather than Bluetooth earbuds.
• Best for a bundled watch and earbuds → HYDZXINGW Watch. The wireless earbuds store in the watch and are described as charging there.
• Best for musicians or monitoring → NFACOUS NM20. Its stated purpose includes professional monitoring and listening, with passive sound isolation and a single dynamic driver.
• Best for wrist-based activity features → HYDZXINGW Watch. It lists distance, steps, heart rate, calories, sleep duration, reminders and exercise tracking.
• Best for handling calls from the wrist → HYDZXINGW Watch. Its listed functions include accepting or rejecting calls and reading SMS messages.
• Best if you want multiple ear-tip sizes → NFACOUS NM20. Four sizes are included, which gives more options for adjusting the in-ear fit.
• Best for a simple wired connection to compatible gear → NFACOUS NM20. The included adapter supports a 6.35 mm connection when the equipment has the corresponding socket.
• Best for a combined everyday carry setup → HYDZXINGW Watch. Its earbuds have a storage compartment in the watch, though buyers should not assume that convenience makes them swim-ready.
A search for the best multipoint Bluetooth headset for swimming deserves one important distinction here: neither sheet confirms multipoint Bluetooth, and the NM20 is wired rather than Bluetooth. Likewise, neither product is clearly established as a pair of noise cancelling wireless earbuds for swimming. The HYDZXINGW earbuds are described with active mute and noise reduction, but that is not the same as a stated swimming certification or a defined multipoint feature. If your search is for hifi stereo ear clip headphones for swimming, these are not listed as ear-clip headphones; the NM20 is an in-ear monitor, and the HYDZXINGW product is a watch with stored wireless earbuds.
For swimming, separate the question of the watch’s water resistance from the question of whether its earbuds can be used in water. The HYDZXINGW sheet lists a 1-meter water-resistance depth for the watch, but it does not specify an earbud water rating or say the earbuds are intended for swimming. The NM20 sheet provides no water-resistance figure. I would not treat either product as a confirmed swimming-audio solution based on these details alone.
Think about how you plan to listen, too. The NM20’s 3.5 mm wired connection is a practical fit for compatible audio gear, and the included 6.35-to-3.5 mm adapter broadens the types of sockets it can connect to. It does not provide wireless convenience, and a cable may not fit the way you want to move during exercise. The HYDZXINGW earbuds provide Bluetooth 5.3 connectivity, but the sheet does not specify multipoint pairing or give separate battery-life details for the earbuds.
Fit and features pull the choice in different directions. NM20 buyers get four tip sizes and an in-ear shape intended for comfortable listening, but no watch, call controls or activity metrics. HYDZXINGW buyers get a screen, listed health and activity metrics, and earbud storage in the watch, but the sheet offers fewer details about the earbuds’ fit and sound characteristics. Its health readings are for reference only, not clinical use.
I would choose the NFACOUS NM20 if my main goal were wired listening, monitoring or a more conventional in-ear setup. Its 3.5 mm connection, passive isolation and four tip sizes make its role clearer to me.
For swimming, though, I would not assume either product is suitable based on the listed details alone. The HYDZXINGW Watch is my pick only if the priority is combining a smartwatch with stored wireless earbuds—not if confirmed swim-ready earbuds are essential.
No. The NM20 is a wired earphone with a 3.5 mm jack and a 0.78 mm, 2-pin cable connection. It does not have the Bluetooth features listed for the HYDZXINGW earbuds.
The product information lists a 1-meter water-resistance depth for the watch, but it does not provide a separate swimming rating for the earbuds. I would not infer that the earbuds are swim-safe from the watch’s water-resistance details.
Multipoint Bluetooth is not specified in the product information. The earbuds are listed as Bluetooth 5.3 with automatic connection, but that does not establish that they can maintain connections to multiple devices at once.
The NM20 is described for monitoring and listening, and it connects by cable. The HYDZXINGW Watch’s earbuds are listed for music and calls, with watch-based call controls; the sheets do not provide a direct sound-quality comparison.
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