We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-18 · 7 min read · Independent comparison
If you want a lightweight open-ear earbud with night-visibility LEDs, app control and a charging case that shows battery status at a glance, choose ACEFAST AceFit Pro Open-Ear; if you need headphones that survive actual swimming with built-in 64GB MP3 storage, choose DOOGEEEco Bone Air Swim.
• ACEFAST AceFit Pro Open-Ear – biggest strength: a 7.8g ear-hook design with a 20mm dynamic driver, 30-hour playtime, IP54 rating and 40 LED lights for night visibility.
• ACEFAST AceFit Pro Open-Ear – biggest trade-off: IP54 keeps sweat and splashes out, but it is not built for immersion, so pools and showers are off the table.
• DOOGEEEco Bone Air Swim – biggest strength: IP68 sealing rated for 2m of water for up to 2 hours, plus 64GB of onboard storage so it works with no Bluetooth signal at all.
• DOOGEEEco Bone Air Swim – biggest trade-off: a 26.5g frame and only 8 hours per charge (5 hours in MP3 mode at full volume), with no active noise cancellation and no app.
• Who each pick is for: the ACEFAST is for runners, gym-goers and evening joggers who want comfort, bass and visibility; the DOOGEEEco is for swimmers, divers and cyclists who need water survival and offline storage.
The AceFit Pro is an ear-hook open-ear earbud built around two ideas: staying comfortable for hours and staying visible after dark. It weighs 7.8g, uses a 0.7mm nickel-titanium memory wire in the hooks, and is coated in a soft supramolecular liquid silicone. That combination is what makes it workable for glasses wearers and for people who hate the pressure of in-ear tips. The enclosure mixes aerospace-grade titanium alloy, high-polymer plastic and skin-friendly silicone, so it reads as a sports-first build rather than a fragile fashion piece.
On the audio side, the spec sheet is unusually specific: a 20mm dynamic driver with a three-magnet super-linear speaker, up to 0.5mm amplitude, 8 ohm impedance and a 20Hz–20kHz range. In my reading, that points to a tuning that chases bass weight and clarity rather than a thin, tinny open-ear sound. Bluetooth 5.4 handles the connection, you can pair two devices and switch between them, and a 5-minute charge buys about 2 hours of playtime. Total playtime is listed at 30 hours, with the case holding 500mAh and adding roughly 32 hours of its own.
The feature that makes this one distinctive is the safety angle: 40 high-brightness 3D floating LED lights make the wearer visible from over 10 meters, which is exactly the kind of thing that matters on a dark road at 6am. The charging case is slim at 1.08 inches, uses a seven-layer finish and has an LED display for battery and charging status. IP54 covers sweat and rain, and four mics with ENC handle calls. Controls are touch-based and app-driven, and noise control is listed as active noise cancellation.
Who should buy it: runners, walkers, gym users, commuters and anyone who wants open-ear awareness plus a bit of night-time presence. Who should skip it: swimmers and heavy rain-soaked athletes, because IP54 is a splash rating, not a waterproof one. Anyone who wants the lightest possible frame should also note the DOOGEEEco's 26.5g against this 7.8g.
The Bone Air Swim is a different animal entirely. It is a dual-conduction headphone that blends bone conduction for highs and mids with air conduction for bass, using a bone conduction driver with a 20kHz frequency response. The pitch here is not "premium everyday audio" — it is "audio that keeps working in places where normal headphones die."
That starts with IP68. The double-sealed build is rated for 2m of water immersion for up to 2 hours, which covers pool laps, open-water training, diving and rain running. Crucially, it also has a 64GB local memory that holds up to 16,000 tracks, so you can switch to MP3 mode and leave your phone on the deck. The brand is upfront that Bluetooth cannot transmit through water, so MP3 mode is not a bonus — it is the whole point for swimmers. Bluetooth 5.4 with a 10m range handles everything on land.
Battery is the trade-off. The 140mAh cell gives up to 8 hours in wireless mode at 75% volume and about 5 hours in MP3 mode at full volume. A 10-minute quick charge buys 2 hours of playback, which softens the sting on rushed mornings. The frame uses silicone ear hooks with a titanium memory steel wire and comes in at 26.5g, and there is an adjustable strap sized to fit smaller heads, including women and kids. You also get swimming earplugs in silicone and sponge, an anti-slip elastic strap, a hard carry case and a magnetic charging cable in the box.
Who should buy it: swimmers, divers, water-sports athletes, and cyclists or runners who want music without a phone. Who should skip it: people who want noise cancellation (there is none), app-based EQ or touch controls, or all-day battery in one go. The weight and the 8-hour ceiling are the honest costs of the waterproofing.
• Best for swimming and water immersion → DOOGEEEco Bone Air Swim. IP68 with 2m/2-hour immersion versus IP54 splash resistance on the ACEFAST.
• Best for battery life → ACEFAST AceFit Pro Open-Ear. 30 hours of playtime plus a 500mAh case adding around 32 hours, against 8 hours (5 in MP3 mode) on the DOOGEEEco.
• Best for night-time safety → ACEFAST AceFit Pro Open-Ear. 40 LED lights give visibility from over 10 meters; the DOOGEEEco has no lighting feature listed.
• Best for leaving your phone behind → DOOGEEEco Bone Air Swim. 64GB of onboard storage for up to 16,000 tracks, with no equivalent on the ACEFAST.
• Best for all-day comfort and light weight → ACEFAST AceFit Pro Open-Ear. 7.8g with memory-wire hooks and liquid silicone, versus 26.5g on the DOOGEEEco.
• Best for call clarity → ACEFAST AceFit Pro Open-Ear. Four mics with ENC noise cancellation; the DOOGEEEco lists no noise control at all.
• Best for bass you can feel on land → ACEFAST AceFit Pro Open-Ear. A 20mm dynamic driver with a three-magnet super-linear speaker and up to 0.5mm amplitude.
• Best for fitting kids and smaller heads → DOOGEEEco Bone Air Swim. The adjustable elastic strap is explicitly sized for women and kids.
• Best for charging convenience → ACEFAST AceFit Pro Open-Ear. A 5-minute top-up gives about 2 hours, and the case has an LED battery display.
If I were buying one, I would pick the ACEFAST AceFit Pro Open-Ear for most people. In my opinion it wins the everyday battle: lighter on the ears, longer between charges, better for calls, with app control and a case that tells you what's left without guessing. The LED safety lighting is a genuinely useful extra for anyone running before sunrise or after sunset.
The exception is clear-cut. If you swim, dive or train in water, nothing about the ACEFAST's IP54 rating will save it, and the DOOGEEEco's IP68 sealing plus 64GB offline playback is the only one of the two that answers that need. Buy the DOOGEEEco for water. Buy the ACEFAST for everything else.
No. It carries an IP54 rating, which covers sweat, splashes and light rain. It is not designed for pool or open-water swimming. For that you need the DOOGEEEco's IP68 build.
Yes. It has 64GB of built-in memory for up to 16,000 tracks in MP3 mode, which is exactly how it is meant to be used underwater, since Bluetooth signals cannot travel through water.
The ACEFAST by a wide margin: 30 hours of playtime plus a charging case rated around 32 hours, versus 8 hours wireless or about 5 hours in MP3 mode for the DOOGEEEco. A 5-minute ACEFAST charge gives roughly 2 hours, and the DOOGEEEco's 10-minute charge gives the same.
The ACEFAST AceFit Pro Open-Ear. It is lighter, has LED visibility lighting for low light, and adds four-mic ENC call clarity. The DOOGEEEco is the better pick only if water or phone-free playback is part of your routine.
Before deciding, check the current price on Amazon for both, since that is the one variable this comparison deliberately leaves to the listing page.
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.