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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
• Biggest strength of the 1MORE Fit SE S30: an open-ear earhook design that sits outside your ear canal, so you stay aware of your environment, plus a split hook shape that stays put during movement and a generous 30-hour total playtime.
• Biggest trade-off of the 1MORE Fit SE S30: open-ear means almost no passive isolation, and its noise control is environmental noise cancellation for calls rather than music-blocking ANC.
• Biggest strength of the CMF BY NOTHING Buds 2: 48dB hybrid active noise cancellation with an adaptive mode, plus Dirac-tuned sound, spatial audio and 55 hours of total playtime with fast charging.
• Biggest trade-off of the CMF BY NOTHING Buds 2: it's a sealed in-ear bud, so you're cut off from your surroundings, and it depends on getting a good tip seal to sound its best.
• Who the 1MORE is for: runners, cyclists, gym-goers and anyone who wants music without blocking out the world.
• Who the CMF is for: commuters, travelers, gamers and movie-watchers who want to disappear into their audio.
The 1MORE Fit SE S30 is an open-ear sports earbud, and the design tells you almost everything. Instead of pushing a tip into your ear canal, it hooks over your ear and fires sound toward it. That's the whole point: you hear your music and you still hear the car behind you, the gym announcement, or your running partner. For outdoor training, that's not a gimmick, it's a safety feature.
The audio hardware backs up the sporty intent. There's a 14.2mm DLC dynamic driver inside, which is a large driver for this category, paired with a DBB bass enhancement algorithm to give the low end some punch even without a sealed fit. It runs Bluetooth 5.3 with a 10-meter range, and it uses four embedded microphones with an AI algorithm to keep calls clear — which matters more than you'd think on an open-ear bud, because there's no seal to block wind and background noise for the person on the other end.
Buy it if you train outdoors, hate the plugged-up feeling of in-ear buds, or want to stay aware while you listen. Skip it if you fly a lot or work in a noisy open office — with no real isolation, background noise competes directly with your music.
CMF BY NOTHING Buds 2: Who It's For
The CMF BY NOTHING Buds 2 goes in the opposite direction. This is a true wireless in-ear bud with rounded tips, and its headline feature is 48dB hybrid active noise cancellation covering an ultra-wide 5200Hz frequency range. There's also an Environmental Adaptive mode that adjusts the noise reduction in real time as your surroundings change — loud train platform, quiet carriage, back again. If your priority is making the world go away, this is the tool for it.
Sound is handled by an 11mm PMI dynamic driver tuned with Dirac Opteo, which the spec sheet frames around clear vocals and precise instrument separation, plus Ultra Bass. There's also a 360° spatial audio effect built on an HRTF-based algorithm, aimed at movies and games rather than just music. Bluetooth 5.4 is the newer standard of the two, and the Nothing X app adds EQ, bass adjustment, ANC control, a Low Lag mode for gaming and ChatGPT voice integration.
Battery numbers are strong: up to 13.5 hours on a single charge and up to 55 hours total with the case, with a 10-minute top-up giving roughly 7.5 hours. A full charge takes about 62 minutes. Six microphones with AI-powered Clear Voice Technology 3.0 and Wind Noise Reduction 3.0 handle calls, and the IP55 rating means dust and water spray are both covered — one step up from the 1MORE's IPX5 on the dust side.
Buy it if you commute, travel, game or watch a lot of video and want immersion plus noise blocking. Skip it if you need to hear traffic while running — the seal that makes the ANC work is the same seal that shuts the world out.
• Best for outdoor running and cycling safety → 1MORE Fit SE S30. The open-ear hook design leaves your ears fully open to traffic and surroundings.
• Best for noise cancellation → CMF BY NOTHING Buds 2. 48dB hybrid ANC with a 5200Hz range and an adaptive mode is in a different league from the 1MORE's call-focused environmental noise cancellation.
• Best for total battery life → CMF BY NOTHING Buds 2. Up to 55 hours with the case versus 30 hours on the 1MORE.
• Best for long single sessions → CMF BY NOTHING Buds 2. Up to 13.5 hours per charge versus up to 10 hours on the 1MORE.
• Best for fast top-ups → CMF BY NOTHING Buds 2. A 10-minute charge yields around 7.5 hours; the 1MORE's full charge takes about 2 hours.
• Best for bass impact without a seal → 1MORE Fit SE S30. The 14.2mm DLC driver and DBB bass enhancement are tuned specifically to compensate for the open fit.
• Best for movies, games and spatial audio → CMF BY NOTHING Buds 2. The HRTF-based 360° effect and Low Lag mode are built for it.
• Best for workouts with heavy sweat and rain → both work, but the 1MORE is IPX5 while the CMF is IP55 with dust protection as well.
• Best for staying aware of your environment → 1MORE Fit SE S30, by design rather than by setting.
If I had to pick one, I'd buy the CMF BY NOTHING Buds 2 for most people. In my opinion, it simply covers more ground: real hybrid ANC, spatial audio, longer battery, faster charging, newer Bluetooth and a slightly tougher IP55 rating make it the better all-rounder for commuting, travel, gaming and everyday listening. I'd only steer you to the 1MORE Fit SE S30 if your training genuinely happens outdoors and hearing your surroundings is non-negotiable — in that specific case, the open-ear hook design isn't a compromise, it's the reason to buy. Check the current price on Amazon before deciding, since that's the one variable that can flip a close call.
Not for outdoor running. The CMF's sealed in-ear fit and 48dB ANC block out traffic and surroundings, which is exactly what you don't want on a road. The 1MORE's open-ear design is the safer and more comfortable choice for outdoor training. For treadmill or gym work, the CMF is fine.
The CMF BY NOTHING Buds 2 wins on paper. It offers up to 13.5 hours per charge and up to 55 hours with the case, versus up to 10 hours and 30 hours total for the 1MORE. The CMF also recharges far faster, with a 10-minute top-up giving around 7.5 hours.
It has environmental noise cancellation, which is aimed at cleaning up your voice on calls using its four microphones. It does not have active noise cancellation for blocking music-time background noise. If blocking out sound is your goal, the CMF Buds 2's 48dB hybrid ANC is the right pick.
Both are well equipped. The 1MORE uses four microphones with an AI algorithm, while the CMF Buds 2 uses six microphones with AI-powered Clear Voice Technology 3.0 and Wind Noise Reduction 3.0. On paper the CMF has the more advanced call package, but the 1MORE's open design means your voice isn't trapped inside your head.
Yes, both handle sweat. The 1MORE Fit SE S30 carries an IPX5 water resistance rating, and the CMF BY NOTHING Buds 2 carries IP55, which adds dust protection on top of water spray resistance. If you want maximum awareness during a workout, go 1MORE; if you want to block out gym noise, go CMF.
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