How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want one pair of earbuds that protects your ears on a loud jobsite and keeps your music at a safe volume all shift, choose ISOtunes Xtra 2.0; if you need everyday wireless earbuds with active noise cancellation, touch controls and a sleeker all-round listening experience, choose Samsung Galaxy Buds 4.
• ISOtunes Xtra 2.0 — biggest strength: Real hearing protection first. Memory foam eartips expand like earplugs for a 27 dB NRR, and SafeMax caps audio output at 85 dB, so it is built around your ears, not just your playlist.
• ISOtunes Xtra 2.0 — biggest trade-off: It is a safety product, not a lifestyle gadget. Passive noise isolation only, a short 9 m Bluetooth range, Micro-USB charging and no app-based control.
• Samsung Galaxy Buds 4 — biggest strength: Active Noise Cancellation with touch controls, AI-assisted call clarity and a longer 10 m Bluetooth range for phone calls, podcasts and streaming.
• Samsung Galaxy Buds 4 — biggest trade-off: The specs list no NRR or volume limiter, and this SM-R640 is an International Version sold without a local warranty. Some features are reserved for Galaxy Android phones.
• Who each pick is for: ISOtunes Xtra 2.0 for workshop, factory and outdoor work where noise itself is the hazard. Samsung Galaxy Buds 4 for commutes, calls and casual listening.
The ISOtunes Xtra 2.0 is a hearing protector that happens to play music, not the other way around. The flanged memory foam eartips expand inside your ear canal like foam earplugs, and ISOtunes rates that physical barrier at 27 dB NRR. That is the number that matters on a shop floor or next to a running mower. On top of that, SafeMax holds the audio output at 85 dB. For context, ISOtunes notes that ordinary non-safety headphones can push 100 to 115 dB into your ears. In my opinion that single design decision is the reason to buy this pair.
Battery life is the other spec that stands out: up to 11 hours on a charge, which covers a full shift with room to spare. The IP67 rating means water, sweat and dust are not a worry, and the magnetic earbuds pause your music when you clip them together and keep them from swinging around your neck. You also get Bluetooth 5.0, touch media controls, a 9 metre wireless range, four pairs of foam tips and three pairs of silicone double-flange tips in the box. That tip selection matters, because the fit is what delivers the noise reduction — compress the foam, pull your ear up, insert, and hold for about 15 seconds while it expands.
Buy the Xtra 2.0 if your day involves sustained loud noise and you want one device that protects and entertains at the same time. Skip it if you mostly want earbuds for calls, streaming or travel. There is no active noise cancellation here, just physical blocking, and the charging cable is Micro-USB rather than the newer standard.
The Samsung Galaxy Buds 4 Pro is aimed squarely at the everyday listener. Active Noise Cancellation uses powered electronics to reduce background noise, which is a different approach from the Xtra 2.0's earplug-style barrier. Touch controls let you take calls, change volume and skip tracks without pulling out your phone, and the app and voice control options give you more ways to manage playback. The Bluetooth 6.1 radio also reaches a listed 10 metres, slightly further than the ISOtunes pair.
Call quality gets real attention in the specs. Super Wideband microphones paired with AI-based noise reduction filter surrounding noise and reconstruct lost bits of your voice, which is the kind of feature that matters on a busy street or in an open office. You also get IPX7 water resistance, so sweat and rain are fine, and a charging case that carries extra power for travel. The ear cushions and multiple eartip sizes in the box help you dial in the fit.
Side-by-Side: Which Should You Choose?
• Best for hearing protection → ISOtunes Xtra 2.0. A 27 dB NRR and an 85 dB output limit are the whole point of the product.
• Best for battery life → ISOtunes Xtra 2.0. Up to 11 hours versus 8 hours on the Galaxy Buds 4.
• Best for call clarity → Samsung Galaxy Buds 4. Super Wideband mics with AI noise reduction and reconstruction beat a single noise-cancelling mic setup for voice.
• Best for noise blocking while powered off → ISOtunes Xtra 2.0. Passive isolation works without a battery; ANC needs power.
• Best for workouts and rain → Samsung Galaxy Buds 4 (IPX7), with ISOtunes close behind (IP67). Both handle sweat; IP67 also covers dust.
• Best for touch and app control → Samsung Galaxy Buds 4. App and voice control plus touch, versus touch-only on the ISOtunes.
• Best for Android and Galaxy phone owners → Samsung Galaxy Buds 4. ANC customization and 360 Audio are Galaxy-exclusive features.
• Best for loud workplaces → ISOtunes Xtra 2.0. In my opinion this is the only one of the two you should wear next to machinery all day.
If I had to pick one, I would buy the ISOtunes Xtra 2.0 — but only if my ears are exposed to real noise. The 27 dB NRR, the 85 dB cap and the 11-hour battery solve a problem the Galaxy Buds 4 does not even address. For calls, streaming and commuting, I would take the Samsung Galaxy Buds 4 instead, since its ANC, AI call handling and Galaxy features are genuinely better for that life. Match the tool to the job and you will not regret either.
For noisy work, yes. It is a safety product with a 27 dB NRR and an 85 dB volume limiter. The Galaxy Buds 4 has ANC but no stated NRR or output cap.
They work differently. The Galaxy Buds 4 uses Active Noise Cancellation, which needs power. The Xtra 2.0 uses passive isolation, blocking sound with a physical foam earplug barrier even when it is off.
I do not list prices here because they change often. Check the current price on Amazon using the button on this page before you decide.
The ISOtunes Xtra 2.0 is rated up to 11 hours per charge. The Galaxy Buds 4 is rated around 8 hours, with a 1.5-hour charge time and a charging case for top-ups on the go.
Yes, it pairs over Bluetooth, but certain features like ANC customization and 360 Audio are exclusive to Galaxy Android devices. It is also an International Version without a local warranty.
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