How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want maximum comfort and marathon battery life for travel, home office and long listening sessions, choose FIO MOTUS FM30; if you need open-ear awareness, a featherlight fit and sweat resistance for running and gym work, choose otinsile M97.
• FIO MOTUS FM30 — biggest strength: hybrid ANC with 4 microphones plus up to 130 hours of playtime in standard mode (75 hours with ANC on), in a 160-gram on-ear frame.
• FIO MOTUS FM30 — biggest trade-off: it's a full on-ear headphone, so it blocks your ears — the opposite of what you want if you need to hear traffic or gym surroundings.
• otinsile M97 — biggest strength: a 5-gram per-bud open-ear C-hook design with IPX5 waterproofing and 50 hours of total battery with the charging case.
• otinsile M97 — biggest trade-off: the open design means less bass isolation and no active noise cancellation — you'll hear the world as much as your music.
• Pick FIO MOTUS FM30 if you want noise cancellation, spatial audio and the longest possible single-charge listening.
• Pick otinsile M97 if you run, cycle, work out in the gym, or wear glasses and hate pressure inside your ears.
The FM30 is built for people who want to shut the world out. Hybrid active noise cancellation with 4 microphones targets low and mid-frequency sounds — engine hums, air conditioning, the drone of a plane cabin or a shared office. That's the core of the pitch, and it's a genuinely useful one if quiet is what you're buying.
Battery is where the FM30 separates itself. You get up to 75 hours of music in noise cancelling mode, and up to 130 hours in standard mode. A 10-minute charge buys roughly 12 hours of listening. For a frequent flyer or someone who works all day with headphones on, that's the difference between charging every night and charging once a week. Bluetooth 5.4 keeps the connection stable and makes switching between devices painless, and personalized spatial audio with built-in algorithms keeps you centered in the sound for movies and music.
Comfort comes from the 160-gram weight and soft, removable transparent ear shells with an ergonomic shape — the design intent is clearly long sessions without ear fatigue. I recommend the FM30 for travellers, remote workers, students and anyone who wants a traditional headphone experience with strong battery. Skip it if you need to stay aware of your surroundings while exercising, or you simply don't like anything sitting on your ears.
The M97 is the opposite philosophy, and it's honest about it. These are open-ear clip-on buds with a C-shaped hook that sits outside your ear canal, giving you 360° environmental awareness. For runners, cyclists and outdoor enthusiasts, that's a safety feature, not a compromise — you hear cars, other people and your surroundings while music plays.
At 5 grams per bud, these are extremely light. The C-hook is designed to fit different ear sizes without slipping during intense workouts, and the clip-on format means no pressure inside the ear — a real benefit if you wear glasses. The 12mm dynamic drivers, combined with directional sound technology, aim to minimize sound leakage while keeping mids and highs clear and vocals intelligible on calls. IPX5 waterproofing covers sweat and rain, so gym sessions and wet commutes aren't a problem.
Battery runs 6 hours of continuous playtime, extending to 50 hours total with the compact charging case. A 10-minute quick charge adds 2 hours. Bluetooth 6.0 delivers instant pairing, a stable connection up to 33 feet and low latency for gaming and video. In my opinion, the M97 is the right pick for runners, gym-goers, glasses wearers and anyone who wants music without blocking their ears. Skip it if you want deep, sealed bass or active noise cancellation — the open design can't provide either.
Side-by-Side: Which Should You Choose?
• Best for noise cancellation → FIO MOTUS FM30. Hybrid ANC with 4 microphones actively reduces low and mid-frequency noise; the M97 has only passive sound isolation.
• Best for running and gym → otinsile M97. IPX5 waterproofing, a secure C-hook and 5-gram weight are designed for movement; the FM30 is not.
• Best for situational awareness → otinsile M97. The open-ear design keeps 360° awareness of your surroundings; the FM30 deliberately shuts them out.
• Best for glasses wearers → otinsile M97. Nothing presses inside the ear canal, so there's zero interference with eyewear.
• Best for travel and home office → FIO MOTUS FM30. ANC, spatial audio and Bluetooth 5.4 multitasking suit planes, open offices and long workdays.
• Best for immersive movie and music listening → FIO MOTUS FM30. Personalized spatial audio keeps you at the center of the soundstage; the M97 favors clarity and awareness over immersion.
• Best for sweat and rain → otinsile M97. IPX5 protection is explicit; the FM30 sheet makes no water-resistance claim.
I would buy the FIO MOTUS FM30. In my opinion, the combination of hybrid ANC, up to 130 hours of playtime, Bluetooth 5.4 and personalized spatial audio covers far more of everyday life — flights, offices, study sessions and long evenings of music and movies. The M97 is the better tool for a narrower job: running, cycling and gym work where awareness and a 5-gram fit matter more than isolation. If your headphones live in a gym bag rather than on a desk, flip the decision — but for most buyers, the FM30 is the more versatile purchase. Check the current price on Amazon before you commit, since that's the one variable that can change the math.
No. The M97 is designed for it: IPX5 waterproofing, a secure C-hook and 5 grams per bud. The FM30 is an on-ear headphone with no stated water resistance, so it's a poor fit for sweaty workouts.
It has sound isolation only — no active noise cancellation. The open-ear design intentionally lets ambient sound in for awareness, while the FM30's hybrid ANC with 4 microphones actively reduces low and mid-frequency noise.
The FM30, by a wide margin. Up to 130 hours in standard mode and 75 hours with ANC on, versus 6 hours continuous and 50 hours total with the M97's charging case. The FM30's 10-minute charge also adds about 12 hours versus 2 hours on the M97.
Both are designed for long wear but differently: the FM30 at 160 grams with removable transparent ear shells, the M97 at 5 grams per bud with zero ear-canal pressure. If you wear glasses or dislike anything pressing in your ears, the M97 is the safer choice.
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