We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-29 · 6 min read · Independent comparison
If you want a new, full-warranty LDAC headphone with app-tunable adaptive noise cancelling and a proven long-haul battery, choose Anker Soundcore Space One; if you need the longest single-charge runtime and the lightest over-ear fit for glasses wearers, choose Amazon Renewed Edifier W820NB.
• Anker Soundcore Space One — biggest strength: Adaptive ANC that auto-calibrates to your ears and surroundings, plus five adjustable ANC levels in the soundcore app and LDAC Hi-Res wireless over Bluetooth 5.3.
• Anker Soundcore Space One — biggest trade-off: It's the heavier of the two at 9.12 ounces, and the plastic build with a carry pouch feels more utilitarian than premium.
• Amazon Renewed Edifier W820NB — biggest strength: 49 hours of playback, 7 hours from a 10-minute fast charge, and a 220 g (7.9 oz) memory-foam design built around a zero-pressure patent for glasses wearers.
• Amazon Renewed Edifier W820NB — biggest trade-off: It's a renewed unit with a 90-day limited warranty, Bluetooth 5.2 instead of 5.3, and no app-based EQ mentioned in the specs.
• Who each pick is for: The Space One suits commuters and frequent flyers who want adjustable ANC and app control; the Renewed W820NB suits marathon listeners, glasses wearers, and anyone who wants maximum hours per charge.
The Space One is built around noise cancelling that adapts rather than sits still. Its adaptive system detects external sound and sound leakage, then auto-calibrates so the reduction stays effective even when the headphones aren't sitting perfectly on your ears. Anker is specific about where that pays off: low-frequency, continuous noise like engine rumble, air conditioner hum, and train drone. If your commute is a bus, a plane, or an open-plan office with a droning HVAC system, that's the target. The soundcore app lets you pick from five ANC levels, so you can dial cancellation up on a flight and back down in a quiet café where you still want to hear a little of the room.
Audio is the other headline. The 40 mm customized dynamic drivers support LDAC for Hi-Res wireless playback, which Anker describes as roughly 3× the detail of standard Bluetooth codecs. You also get Bluetooth 5.3, a 10-meter range, a 3.5 mm jack for wired listening, and touch controls on the cups. Battery is 40 hours with ANC on and 55 hours with it off — a genuinely useful gap if you're the type who forgets to charge.
Who should buy it: commuters, travelers, and anyone who wants to tune their own noise cancelling instead of accepting one fixed level. Who should skip it: if you want the absolute lightest pair or the longest possible single charge, the numbers favor the other option. It's also worth noting the 8° rotating ear cups and integrated headband are designed to spread pressure for long wear, but 9.12 ounces is still 9.12 ounces.
This is the Edifier W820NB Plus in renewed condition, and the spec sheet is unusually specific. The 40 mm mantle-plated composite diaphragm supports LDAC decoding, and Edifier lays out the transfer-speed ladder plainly: LDAC at 990 Kbps versus aptX HD at 576 Kbps, AAC at 512 Kbps, and SBC at 328 Kbps. That's the clearest explanation of why LDAC matters that you'll find on either sheet — more data per second, more musical detail.
Noise cancelling is hybrid, rated at -43 dB, with an enclosed design that identifies ambient noise and applies corrected signals. You also get seven levels of ambient sound volume, which is a nice touch: you can let in airport announcements or a bus driver's call without pulling the headphones off. Calls run through built-in mics with DNN noise cancellation — a neural-network approach to separating your voice from background chatter.
The comfort story is the real differentiator. At 220 g (7.9 oz), it's lighter than the Space One, and the memory foam cushions use a zero-pressure patent that Edifier says works even with glasses. Playback is 49 hours, and a 10-minute fast charge gives you 7 hours. Bluetooth is 5.2.
Who should buy it: marathon listeners, glasses wearers, and anyone who wants the longest runtime and the lightest frame. Who should skip it: if you want a new unit with a longer warranty and app-based tuning, or you specifically want Bluetooth 5.3. Renewed means a 90-day limited warranty, and that's a real consideration.
• Best for battery life → Amazon Renewed Edifier W820NB. 49 hours beats 40 hours with ANC on, and 7 hours from a 10-minute charge is a genuinely useful emergency top-up.
• Best for adjustable noise cancelling → Anker Soundcore Space One. Five ANC levels in the app versus a fixed -43 dB hybrid system.
• Best for glasses wearers → Amazon Renewed Edifier W820NB. The zero-pressure patent earcups and 220 g weight are aimed directly at that problem.
• Best for app control and EQ → Anker Soundcore Space One. The soundcore app is central to its ANC tuning; the Edifier sheet lists media controls only.
• Best for the newest Bluetooth → Anker Soundcore Space One. Bluetooth 5.3 versus 5.2 is a small but real edge for connection stability and efficiency.
• Best for wired listening → Anker Soundcore Space One. It has a 3.5 mm jack; the Edifier sheet lists wireless connectivity and a Type-C charging cable only.
• Best for maximum LDAC detail on paper → Amazon Renewed Edifier W820NB. Both support LDAC, but Edifier actually publishes the 990 Kbps figure.
• Best for warranty peace of mind → Anker Soundcore Space One. 18 months versus a 90-day limited warranty on the renewed Edifier.
In my opinion, the Anker Soundcore Space One is the safer buy for most people. You get a new unit, an 18-month warranty, Bluetooth 5.3, a 3.5 mm jack, and adaptive ANC you can actually tune — and 40 hours with ANC on is already plenty for a week of commuting. I'd only steer you to the Amazon Renewed Edifier W820NB if runtime and weight are your top two priorities, or if you wear glasses and pressure on the temples is what usually ruins over-ear headphones for you. In that case, 49 hours and 220 g are hard to argue with. Either way, check the current price on Amazon before you commit, since renewed listings move around.
what is ldac headphones
LDAC is a Bluetooth audio codec that carries far more data than standard codecs — Edifier's own comparison lists it at 990 Kbps versus 328 Kbps for SBC. Both headphones here support it, which means Hi-Res wireless playback rather than compressed, detail-poor streaming. You'll need a source device that also supports LDAC to get the benefit.
what is ldac support in headphones
It means the headphones can decode an LDAC stream sent by your phone or player. On the Space One, Anker pairs LDAC with 40 mm customized dynamic drivers; on the W820NB, Edifier pairs it with a 40 mm mantle-plated composite diaphragm. Support alone doesn't guarantee better sound — the drivers and tuning still matter.
what is ldac codec in headphones
It's Sony-developed codec technology that prioritizes bitrate over compression, and it's the reason both of these models can claim Hi-Res wireless audio. Practical effect: more musical detail over Bluetooth. Practical trade-off: it draws more power and needs a compatible source, so it's worth toggling on deliberately.
Yes — the sheet lists a one-year warranty in the feature bullet and a 90-day limited warranty in the item details, so confirm the terms on the listing before buying. The Anker Space One carries an 18-month warranty.
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