How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want all-day battery life and a secure in-ear fit for gym work and running, choose Matast Earbuds; if you need to take your music underwater in the pool, choose Sanag Swimming Bone Conduction. These two are built for completely different kinds of athletes, and that single fact settles most of the decision before you even look at the spec sheets.
• Matast Earbuds — biggest strength: 75 hours of total playtime with the charging case, plus an IP7 waterproof rating and flexible ear hooks that lock into your ears during hard training.
• Matast Earbuds — biggest trade-off: It's a traditional in-ear design, so it seals your ear canal and you stay closed off from traffic, training partners and poolside announcements.
• Sanag Swimming Bone Conduction — biggest strength: IPX8 protection rated for submersion up to 2 meters, plus 32GB of built-in memory so you can swim with music and no phone nearby.
• Sanag Swimming Bone Conduction — biggest trade-off: Only 8 hours of playtime per charge, and you have to switch to MP3 mode in the water because Bluetooth can't transmit underwater.
• Who each pick is for: Matast for land-based training — gym, running, cycling, daily commutes; Sanag for swimmers and open-water athletes who need audio that survives being submerged.
The Matast Earbuds are aimed squarely at the person who trains hard on dry land and wants their earphones to simply stay put and keep going. The ear-hook shape is the headline here. Instead of relying on the silicone tip alone to hold the bud in place, the hook wraps over the top of your ear, which is exactly the kind of design that survives burpees, sprints and heavy bag work. You also get three sizes of ear caps, so you can tune the seal to your own ears rather than accepting whatever comes in the box.
The audio hardware is a 13mm dynamic driver with a 20Hz–20kHz frequency range, which is a large driver for this category and suggests a bass-forward, energetic sound — the kind of tuning that suits a workout playlist rather than critical listening. Four ENC microphones handle calls and are built to cancel up to 80% of background noise, which matters if you take work calls between sets or run near traffic. Bluetooth 5.4 gives you a 15-meter range and, according to Matast, roughly double the data throughput of 5.3 with about 30% less power draw.
Where it really separates itself is endurance. Matast rates a single charge at 10 hours, and the charging case extends that to 75 hours total, with a 1.5-hour recharge over USB-C. A dual LED display shows both the case's remaining power and the earbuds' charging progress, which is a small feature that saves you from the classic "dead earbuds at the gym" surprise.
Sanag Swimming Bone Conduction: Who It's For
The Sanag set exists for one reason: to put music in your ears while you're in the water. The IPX8 rating and one-piece seamless build mean it's rated for submersion up to 2 meters, which covers lap swimming, pool training and ocean swims. That's a category most sports earbuds simply don't compete in.
The clever part is the 32GB of built-in memory. Because Bluetooth signals can't travel through water, Sanag gives you MP3 mode: you load songs onto the headphones themselves and play them with no phone involved. It's a genuinely practical solution, and it means you can leave your phone in a locker. On land, Bluetooth 6.0 pairs in about 3 seconds with a range up to 50 feet.
The bone conduction design is the other half of the story. Instead of plugging your ears, it transmits sound through vibration, so your ear canals stay open and you keep your awareness of what's around you. Sanag uses a magnetic drive oscillator and a fully enclosed sound cavity to hold onto detail — including underwater — and to limit sound leakage. There's also a built-in microphone with ENC, so calls in a noisy pool or gym are at least workable.
The trade-offs are real. Playtime is 8 hours per charge with a 2-hour recharge, and there's no charging case in the specs — just the headphones, so you plan around a single charge rather than a week of them. Audio latency is listed at 40 milliseconds. And with no noise cancellation and an open-ear fit, this is not the pair you pick for immersive listening on a plane. Who should buy it: swimmers, triathletes and open-water athletes who want audio in the water and awareness on the road. Who should skip it: anyone who mostly trains indoors and wants deep bass and total isolation.
Side-by-Side: Which Should You Choose?
• Best for swimming → Sanag Swimming Bone Conduction. IPX8 and 2-meter submersion is the deciding spec; Matast's IP7 is splash-and-sweat only.
• Best for secure, isolating fit during hard land training → Matast Earbuds. Ear hooks plus three ear-cap sizes versus an open-ear curved design.
• Best for awareness of your surroundings → Sanag Swimming Bone Conduction. Bone conduction leaves your ear canals open, which is safer on roads and trails.
• Best for swimming without a phone → Sanag Swimming Bone Conduction. 32GB of onboard memory and an MP3 mode that works where Bluetooth can't.
• Best for faster charging → Matast Earbuds. 1.5 hours to full versus roughly 2 hours.
• Best for call clarity in noise → Matast Earbuds. Four ENC microphones tuned to cut up to 80% of background noise; Sanag uses a single mic with ENC.
• Best for the gym-and-running athlete who wants one pair for everything on land → Matast Earbuds.
In my opinion, most people searching these two names are gym-and-running athletes, and for them the Matast Earbuds are the better buy: the ear-hook fit, the 75-hour total playtime and the four-mic call setup cover the widest range of everyday training. That said, if your training happens in a pool, the Sanag Swimming Bone Conduction is the only one of the two that can actually go with you — IPX8 and onboard MP3 memory aren't nice-to-haves in water, they're requirements. I'd pick based on where you sweat, not on which spec sheet looks longer. Check the current price on Amazon before you commit, since that's the one variable that can flip the call.
For the Matast pair, hook the flexible ear hook over the top of your ear, then twist the bud gently into your ear canal so the tip seals — try the three included ear-cap sizes until the seal feels snug but not painful. For the Sanag, rest the curved band so the transducers sit against your cheekbone just in front of your ear, with your ear canal left open.
This page covers Matast and Sanag, not Bose, so I can't give you Bose-specific steps. The general process is the same across brands: put the earbuds in pairing mode, open your phone's Bluetooth settings, and select the device. The Matast pair uses Bluetooth 5.4 and the Sanag uses Bluetooth 6.0 with roughly 3-second pairing.
Again, that's a Bose procedure and it isn't covered here. For these two, the practical equivalent is clearing the old connection: remove the device from your phone's Bluetooth list, then reconnect from scratch. Matast supports one-step pairing after the first connection, so reopening the charging case reconnects automatically.
Not applicable to either product on this page. For the Matast Earbuds, open the charging case and they reconnect to your last device automatically, or add them manually in Bluetooth settings for a first-time link. The Sanag connects over Bluetooth 6.0 the same way, and you can switch to MP3 mode when you're in the water.
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.
See also: ZHQMG Bone Conduction Headphones vs MARLALL Liquid Silicone Swimming, SANOTO Bone Conduction Headphones vs Vulxovt Bone Conduction Sports, ASKUBSKU USB C Headphones vs Gelecek Bone Conduction Headphones