We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-25 · 7 min read · Independent comparison
If you want over-ear headphones with marathon battery life and a wired Hi-Res option, choose Anker Soundcore; if you need pocketable earbuds with a waterproof build, louder noise cancellation and six-mic call clarity, choose TOZO NC9.
• Anker Soundcore — biggest strength: over-ear comfort with 40 hours of ANC playback, 60 hours with ANC off, and a 5-minute fast charge that buys 4 more hours. Add dual-device Bluetooth 5.0 and a bundled carry case.
• Anker Soundcore — biggest trade-off: it's a full-size headphone, so it takes up bag space, and its IP rating isn't listed — I wouldn't treat it as a gym or rain-running companion.
• TOZO NC9 — biggest strength: hybrid ANC rated to a 45dB reduction depth, IPX8 water resistance, 60 hours total with the case, and a 6-mic ENC array for calls.
• TOZO NC9 — biggest trade-off: in-ear fit is personal — you'll likely need to work through the six ear-tip sizes to get the seal that makes the ANC actually pay off. Single-driver 10mm buds also can't match an over-ear for sheer physical bass slam.
• Who each pick is for: Anker Soundcore → desk, commute, long flights, movie nights, all-day wear. TOZO NC9 → gym, running, cycling, calls on the move, anyone who hates carrying a headphone case.
The Q20i is a hybrid ANC over-ear built around two internal and two external mics that work together to cut external noise — Anker's own framing is up to 90% reduction of steady sounds like plane engines and traffic. That's the classic use case: a droning cabin, a bus engine, an open-plan office hum. Hybrid ANC is best at constant low-frequency noise, and that's exactly what this design targets.
Under the hood you get oversized 40mm dynamic drivers with BassUp, a 20Hz–20,000Hz range, and Hi-Res certified audio when you plug in the included AUX cable. That last part matters more than it sounds. Bluetooth-only headphones live and die by their codec; having a 3.5mm jack means you can go wired for zero-latency listening — editing audio, watching video, or gaming where a Bluetooth delay would annoy you. Bluetooth 5.0 with dual connections means you can be on a laptop call and have your phone's audio cut in automatically when it rings.
Battery is the headline. 40 hours with ANC on, 60 in normal mode, and a 5-minute charge gives you about 4 hours. For a daily commuter that's roughly a week of listening between charges. Everything is controlled via media buttons plus the Soundcore app, and the box includes a hard case sized to fit this and other Soundcore over-ears.
Who should buy it: anyone who wears headphones for hours at a stretch, values over-ear comfort over portability, wants a wired fallback, or juggles two devices all day.
Who should skip it: you want something that disappears into a pocket, you need a water-resistance rating for sweaty workouts, or you prefer the sealed-in feel and lighter weight of earbuds. Also skip if you want the deepest possible noise cancellation — an over-ear with this much padding is great, but the NC9's spec sheet quotes a larger reduction figure.
The NC9 is the opposite philosophy: tiny in-ear buds that chase portability and toughness. Its hybrid ANC is rated to a maximum noise reduction depth of 45dB, paired with a transparency mode so you can hear announcements, traffic and conversations without pulling the buds out. That combination — strong cancellation plus a quick ambient passthrough — is what makes earbuds genuinely usable on a bike or a busy street.
The call story is the second pillar: six microphones with ENC ambient noise reduction, designed to filter background sound so your voice comes through in loud places. If you take meetings from cafés or call people from a train platform, that's the feature doing the work. Sound comes from 10mm dynamic drivers with OrigX Acoustic 2.0, tuned for deep bass, and the TOZO app offers 32 EQ presets plus a sharing zone where you can post your own tuning. Audio latency is quoted at 60ms, which is low enough for video and casual gaming to stay in sync.
Battery: 60 hours total with the case (ANC off) and 40 hours with ANC on, with a single charge giving 14 hours (ANC off) or 10 hours (ANC on). A full charge takes about 1.5 hours, and the case has an LED display showing remaining battery — a small thing that saves you from the classic "dead buds at the airport" moment. IPX8 is the standout spec: that's a serious water-resistance rating, covering sweat, rain and splashes. The buds are ABS and polycarbonate, light blue, and ship with six sizes of replaceable ear tips plus a short USB-C cable.
Who should buy it: runners, gym-goers, cyclists, commuters who want maximum pocketability, and anyone who takes a lot of calls on the move.
Who should skip it: you dislike things inside your ears, you want a wired option (there's no headphone jack here), or you want the open, airy staging an over-ear gives you. If you won't spend five minutes finding the right ear tip, the NC9's ANC won't perform as designed — fit is the whole ballgame with in-ears.
• Best for battery life → Anker Soundcore. 60 hours in normal mode and 40 with ANC on, from a single charge, no case required.
• Best for total playtime with the case → TOZO NC9. 60 hours with ANC off by recharging in the case, plus an LED battery readout.
• Best for noise cancellation depth → TOZO NC9. Its hybrid ANC is rated to 45dB of reduction; the Soundcore's quoted figure is up to 90% of external noise, which is a different way of measuring the same job.
• Best for calls in loud places → TOZO NC9. Six mics with ENC are purpose-built for voice pickup; the Soundcore relies on its ANC mics and Bluetooth 5.0 dual connection for switching between devices.
• Best for wired, Hi-Res listening → Anker Soundcore. 3.5mm jack, AUX cable in the box, Hi-Res certified over the wire.
• Best for workouts and rain → TOZO NC9. IPX8 versus no listed water rating on the Soundcore.
• Best for all-day comfort at a desk → Anker Soundcore. Over-ear padding beats in-ear pressure over an eight-hour day.
• Best for travel-light → TOZO NC9. A case about 6.2cm long and 33.2g versus a full-size headphone you have to carry or wear.
In my opinion, the right call comes down to one question: do you want headphones or earbuds? If you're at a desk, on planes, or wearing them for hours and you value a wired Hi-Res path plus dual-device Bluetooth, I'd buy the Anker Soundcore. If you're moving — gym, run, commute, calls from noisy places — and you want IPX8 and a 45dB ANC rating in something that lives in your pocket, I'd buy the TOZO NC9. Neither is the "better" product in the abstract; they solve different problems. Pick the form factor first, then the spec that matters most to you. And check the current price on Amazon before you commit, since the value math shifts with whatever each one is going for.
On paper, the NC9 quotes a 45dB maximum reduction depth, which is a deeper figure than the Soundcore's "up to 90% of external noise" claim — they're measured differently, so treat it as directional. Both are hybrid ANC. In-ears block more passively through the ear tip seal; over-ears block more through padding and cup size. Fit and seal decide the real-world winner.
The Soundcore gives 40 hours with ANC on and 60 with ANC off from one charge, plus a 5-minute fast charge for 4 extra hours. The NC9 gives 10 hours per charge with ANC on (14 off) but reaches 40–60 hours total via its charging case. For one long uninterrupted session, the Soundcore wins; for weeks of short sessions topped up in a case, the NC9 is easier to live with.
Yes — it has a 3.5mm jack and comes with an AUX cable, and Hi-Res certified audio works over that wired connection. The TOZO NC9 has no headphone jack; it's Bluetooth 5.3 only.
The TOZO NC9, clearly. It's rated IPX8 for sweat, rain and splashes, sits in your ears with no headband to slip, and comes with six ear-tip sizes to lock in the fit. The Soundcore Q20i has no listed water-resistance rating, so I wouldn't plan on sweating in it.
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