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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want the more feature-dense, app-tunable over-ear with the stronger noise-cancelling story, choose Anker Soundcore Space One; if you need marathon battery life in a featherweight on-ear you can fold into a bag, choose OneOdio Focus A1Pro.
• Anker Soundcore Space One — biggest strength: adaptive noise cancelling with a voice-reduction focus, plus LDAC Hi-Res wireless audio and app-based control over a 40mm dynamic driver.
• Anker Soundcore Space One — biggest trade-off: it's an over-ear at 259 g with no headphone jack, so it's a wireless-first, bulkier companion.
• OneOdio Focus A1Pro — biggest strength: 70 hours of playback with ANC off, a 200 g on-ear shell, and a foldable design built for travel.
• OneOdio Focus A1Pro — biggest trade-off: its frequency response tops out at 20 kHz, and it relies on a single mic with ENC rather than the multi-mic array of the Anker.
• Pick Anker Soundcore Space One if you want adaptive ANC, app EQ and Hi-Res codec support in an over-ear fit.
• Pick OneOdio Focus A1Pro if you want maximum battery, minimum weight and a compact folding shape for commutes and trips.
The Space One is built around noise cancelling as a headline feature. Its adaptive system detects external sound and sound leakage, then auto-calibrates — the idea being that you still get useful reduction even if the cups aren't sitting perfectly on your ears. Anker claims up to 98% noise reduction under its own lab conditions, and specifically calls out 2X stronger voice reduction than its Life Q30 model, which matters if mid- and high-frequency chatter is what wears you down on a train or in a café.
Audio is handled by a 40mm customized dynamic driver with a 20 Hz–96 kHz frequency range, 16 ohm impedance and 115 dB sensitivity — all numbers that point to an easy-to-drive, detail-forward tuning. The big differentiator is LDAC support, which Anker says delivers roughly 3X more detail than standard Bluetooth codecs. Bluetooth 5.3, a 15-metre range and app control round out the wireless side, so you can shape the sound profile rather than accept a fixed tuning. Battery is rated 40 hours with ANC on and 55 hours with it off, charging in about 2 hours.
Comfort details are thoughtful: 8° rotating ear cups and an integrated headband that spreads pressure for longer sessions. You get an AUX cable and a protective case in the box, which softens the blow of there being no built-in headphone jack. At 259 g with a TPE enclosure, this is a headphone for people who want to sit down and listen — desk work, long flights, focused study — not for gym bags. If you want a stripped-down, featherweight set, skip it. If you want the most adjustable, feature-rich listening experience of these two, this is the one.
The Focus A1Pro attacks from the opposite direction: endurance and portability. With ANC off it's rated for up to 70 hours of playback, and 40 hours with ANC on — genuinely long stretches between charges. The fast-charge claim is the practical part: about 10 minutes of charging gets you roughly 5 hours of listening, which is the kind of number that saves you on the way out the door. A full charge takes about 2.5 hours.
It's also the lighter of the two at just 200 g, with protein leather ear cushions chosen for breathability. That's an on-ear design, so it clamps onto the ear rather than surrounding it — a different feel entirely, and one that suits people who dislike the bulk of full over-ears. The foldable hinge means it collapses into a bag, which is exactly what the travel, study and workout positioning suggests.
Noise cancelling is hybrid ANC, rated to cut ambient noise by up to 38 dB, and calls run through a single microphone with an ENC algorithm to keep your voice intelligible. The 40mm dynamic drivers use PET diaphragms, and OneOdio describes a wide soundstage with deep bass and clear highs. Frequency response is listed at 20 Hz–20 kHz with 32 ohm impedance. Bluetooth 6.0 with multi-point lets you hold two devices at once and hop between them. One thing worth flagging: the connection is USB-C and wireless only — no 3.5 mm jack — so wired listening isn't an option here. That's a real limitation for anyone with older gear, but a non-issue for a phone-and-laptop user.
Side-by-Side: Which Should You Choose?
• Best battery life → OneOdio Focus A1Pro. 70 hours ANC-off and 40 hours ANC-on versus the Anker's 40/55 split.
• Best noise cancelling depth → Anker Soundcore Space One. Adaptive ANC that self-calibrates, with an explicit emphasis on voice reduction.
• Lightest and most packable → OneOdio Focus A1Pro. 200 g and folding versus 259 g and a fixed over-ear shape.
• Best for app tuning → Anker Soundcore Space One. App control lets you adjust the sound; the A1Pro is push-button only.
• Best for multi-device switching → OneOdio Focus A1Pro. Bluetooth 6.0 with multi-point beats single-source pairing for juggling a phone and a laptop.
• Best for long wear at a desk → Anker Soundcore Space One. Rotating cups and a pressure-spreading headband suit multi-hour sessions.
• Best for travel and gym → OneOdio Focus A1Pro. Lightweight on-ear fit, breathable cushions and a foldable frame.
If I had to pick one, I'd take the Anker Soundcore Space One. In my opinion, the combination of adaptive ANC, app control and LDAC Hi-Res audio gives it more room to be tuned to your taste, and the rotating-cup, over-ear design is the better long-session companion. The 40mm driver here is backed by a wider 20 Hz–96 kHz range that should reward higher-quality sources.
That said, the OneOdio Focus A1Pro wins on the things that matter to a specific buyer: 70 hours of battery, a 200 g frame and a folding shape. If you're always on the move and hate charging, it's the smarter call. Check the current price on Amazon before deciding — the gap between these two often matters less than which set of trade-offs fits your day.
what is 40mm driver in headphones
A 40mm driver is the diameter of the speaker unit inside the ear cup — 40 millimetres across. Both the Anker Soundcore Space One and the OneOdio Focus A1Pro use a 40mm dynamic driver, which is a common size for portable headphones because it balances bass output against weight and comfort.
what are 40mm drivers in headphones
They're dynamic drivers, meaning a diaphragm moves to produce sound, with a 40mm measurement across the driver itself. The Anker uses a customized 40mm dynamic driver with LDAC support, while the OneOdio uses 40mm dynamic drivers with PET diaphragms — same size, different tuning approaches.
which driver is best for headphones
There's no single best driver size. Bigger drivers can move more air and push more bass, but design, materials and tuning matter more than the number. Here both sets land on 40mm, so the real differences come from the Anker's LDAC path and app EQ versus the OneOdio's PET diaphragm and fixed tuning.
is 40mm driver good for headphones
For portable, everyday headphones, yes — 40mm is a practical middle ground. Both of these models use one, and both cover a 20 Hz low end. The Anker extends higher, to 96 kHz, while the OneOdio tops out at 20 kHz, which is still the full range of human hearing.
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