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If you want maximum battery life, a foldable over-ear design and serious noise cancelling for travel, choose Anker Soundcore Space One; if you need an ultra-light on-ear pair with personalized spatial audio and lossless listening over a cable, choose Beats Solo 4. Both are wireless Bluetooth headphones aimed at people who wear them for hours, but they solve that problem in almost opposite ways — one is a travel tool, the other is a lightweight everyday companion.
• Anker Soundcore Space One — biggest strength: a 4-stage adaptive noise cancelling system paired with up to 60 hours of playback (ANC off) and a foldable design that shrinks by 50% for packing.
• Anker Soundcore Space One — biggest trade-off: it's an over-ear pair at 9.6 ounces, so it's bulkier on your head and around your neck than an on-ear design, and it leans on app control for the full feature set.
• Beats Solo 4 — biggest strength: an ultralight ergonomic on-ear build with Personalized Spatial Audio and dynamic head tracking, plus lossless audio when you go wired via USB-C or 3.5 mm.
• Beats Solo 4 — biggest trade-off: it's an on-ear design, which means less physical isolation than over-ear cups, and there's no active noise cancelling in the specs.
• Who the Space One is for: frequent flyers, commuters, open-office workers and anyone who wants long battery and active noise cancelling without thinking about charging.
• Who the Solo 4 is for: people who want something barely noticeable on their head all day, care about spatial audio and lossless wired listening, and don't need ANC.
The Space One is built around noise cancelling first. Its 4-stage system is described as targeting and cancelling a wider range of on-the-go noise in real time and adapting to your movement — which is exactly the scenario where this headphone makes sense: a plane cabin, a bus, a noisy café, a shared office. The adaptive part matters more than it sounds, because noise around you doesn't sit still. Engines drone, crowds swell, and a fixed ANC profile often feels slightly off. A system that re-tunes itself is genuinely useful in transit.
Then there's battery. Up to 60 hours with ANC off, up to 40 hours with ANC on, and a 5-minute charge that gets you roughly 8 hours of playback. In plain terms: you can leave the cable at home for a week-long trip and probably still not hit empty, and if you do, a coffee break's worth of charging covers a full travel day. Charging from flat takes about 2 hours. That combination — long runtime plus fast top-ups — is the single most practical thing about this headphone.
Sound-wise, the Space One uses triple composite diaphragms with LDAC support for Hi-Res audio over Bluetooth, and the spec sheet claims total harmonic distortion under 3%. It supports Bluetooth 5.3 and multipoint, so you can stay connected to a laptop and a phone at the same time and switch between them. Six microphones handle calls. There's a 3.5 mm jack for wired use, and it ships with a cable and a protective case.
Comfort is clearly a design priority: a pressure-relieving headband and slow-rebound foam earcups, aimed at long-haul flights and extended sessions. The foldable FlexiCurve structure cuts the size by half, which is the difference between a headphone that fits in a bag pocket and one that doesn't.
Who should buy it? If noise cancelling and battery life are your two non-negotiables, this is the obvious pick. Who should skip it? If you hate over-ear bulk, dislike managing features through an app, or want spatial audio, look elsewhere. The color listed is Cream White, and it carries a 90-day limited warranty.
The Solo 4 takes the opposite approach: make the headphone disappear on your head. It's an on-ear design with a flex-grip headband and ergonomically angled, adjustable ear cups for a stable fit, plus UltraPlush cushions built for both comfort and durability. The whole pitch is ultralight, all-day wear — the kind of headphone you forget you're wearing while walking, working or moving around.
The headline audio feature is Personalized Spatial Audio with dynamic head tracking. That's a genuinely different experience from plain stereo: the sound stage stays anchored in space as you turn your head, which is a big deal for movies, spatial-mixed music and games. If you watch a lot of video on a phone, tablet or laptop, this is the feature you'd notice most.
Sound itself comes from a custom acoustic architecture and updated drivers, tuned for what Beats describes as powerful and balanced sound. Where the Solo 4 stands apart from most wireless headphones is wired listening: it supports lossless audio over USB-C or a 3.5 mm audio cable. That means when you care about fidelity — or when the battery is low and you still want to listen — you have a real wired path that isn't just a fallback.
Who should buy it? Someone who wants minimal weight, spatial audio, lossless wired listening and long battery, and who doesn't need active noise cancelling. Who should skip it? Anyone whose main use case is blocking out engine noise or a loud office — on-ear cushions simply don't seal the way over-ear cups do, and there's no ANC here.
Side-by-Side: Which Should You Choose?
• Best for noise cancelling → Anker Soundcore Space One. Its 4-stage adaptive ANC is the entire point of the design; the Solo 4 has none.
• Best for battery life → Anker Soundcore Space One. Up to 60 hours (ANC off) and 40 hours with ANC on edges out the Solo 4's 50 hours.
• Best for fast top-ups → Beats Solo 4. 10 minutes gets up to 5 hours, versus the Space One's 5 minutes for about 8 hours — both are quick, but the Solo 4's ratio is strong for short charges.
• Best for all-day light wear → Beats Solo 4. Ultralight on-ear build with flex-grip headband and angled cups.
• Best for spatial and lossless audio → Beats Solo 4. Personalized Spatial Audio with head tracking plus lossless over USB-C or 3.5 mm.
• Best for wired hi-res over Bluetooth → Anker Soundcore Space One. LDAC support, multipoint and a 3.5 mm jack.
• Best for packing → Anker Soundcore Space One. The foldable structure reduces size by 50%, and it includes a protective case.
• Best for phone calls → Anker Soundcore Space One. Six microphones are dedicated to call clarity.
In my opinion, the Anker Soundcore Space One is the better buy for most people, because noise cancelling plus 60 hours of battery covers the two things that actually annoy headphone owners — noisy environments and constant charging. I'd recommend the Beats Solo 4 instead if your priority is comfort above everything: it's the one I'd pick for wearing all day, and its spatial audio and lossless wired mode are features the Space One simply doesn't offer. Decide by asking which matters more — a quiet bubble with huge battery, or a featherweight pair with spatial sound.
For travel, yes in my view. The Space One has adaptive active noise cancelling, up to 40 hours with ANC on, and folds to half its size with a protective case included. The Solo 4 has no ANC and an on-ear fit.
The listed specs don't include active noise cancelling. Its isolation comes from the UltraPlush on-ear cushions and fit, which won't match over-ear ANC for blocking engine or office noise.
Yes. It supports lossless audio via USB-C or a 3.5 mm audio cable, so you can listen wired for higher fidelity or when the battery runs down. The Space One also has a 3.5 mm jack.
The Space One is rated up to 60 hours with ANC off and 40 hours with ANC on. The Solo 4 is rated up to 50 hours. Both take about 2 hours for a full charge, and both offer fast charging.
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