Anker Space A40 A3936
The Anker Space A40 delivers 50-hour total battery life (10 hours per charge) with a quick 10-minute charge providing 4 hours of playback, alongside adaptive ANC that reduces noise by up to 98% and LDAC support for Hi-Res Audio Wireless. Its lightweight 18g design and ergonomic fit make it comfortable for extended wear, and Qi wireless charging adds convenience. Best suited for frequent travelers and commuters who need long-lasting noise cancellation and reliable battery performance.
About This Earbuds
The Anker Space A40 delivers 50-hour total battery life (10 hours per charge) with a quick 10-minute charge providing 4 hours of playback, alongside adaptive ANC that reduces noise by up to 98% and LDAC support for Hi-Res Audio Wireless. Its lightweight 18g design and ergonomic fit make it comfortable for extended wear, and Qi wireless charging adds convenience. Best suited for frequent travelers and commuters who need long-lasting noise cancellation and reliable battery performance.
- Form factor in-ear
- Driver type dynamic
- Wireless
- Active noise cancellation
- Bluetooth version 5.2
- Battery life hours 10
- Case battery hours 50
- Water resistance IPX4
- Multipoint
The 30-Second Version
The Soundcore Space A40 delivers killer battery life (10h buds, 50h case), effective adaptive ANC, and top-tier call quality at a price that often dips under $60. It's not ideal for workouts, and the ANC doesn't beat Bose, but for commutes, work, and travel, it's unbeatable value. With LDAC, wireless charging, and multipoint, it ticks boxes usually found in earbuds twice the price. Highly recommended for budget-conscious listeners who want premium features.
Overview
Soundcore (Anker's audio brand) has been quietly stacking features into budget earbuds for years, and the Space A40 feels like their victory lap. For a pair that often dips under $60, you're getting adaptive active noise cancellation that claims to block up to 98% of external racket, LDAC hi-res audio, and a battery life that practically laughs at cross-country flights. It's the kind of spec sheet you'd expect from earbuds twice the price, and it lands with a pretty solid 4.2 stars from over 90,000 reviews.
If you're a commuter, a remote worker who needs focus time, or just someone who refuses to pay AirPods Pro money, these are aimed squarely at you. They're not trying to dethrone Sony or Bose in absolute ANC performance, but they undercut them by a wide margin while delivering 90% of the experience. The adaptive noise cancelling adjusts on the fly, so hopping from a bus to a quiet office doesn't require fiddling with the app.
What makes the Space A40 so interesting is how many premium boxes it ticks without the premium price. You get wireless charging, multipoint Bluetooth for juggling two devices, a six-mic array for calls, and a companion app with a fully customizable EQ. The 11mm double-layer diaphragm drivers promise punchy bass and clear treble, and LDAC support lets Android users stream at higher bitrates. It's a little feature monster.
Performance
In our testing database, the Space A40 lands among the top 12% for sound quality, which is impressive for earbuds that often sell for pocket change. The out-of-the-box tuning is a lively V-shape with boosted bass and lifted highs, but the Soundcore app's eight-band EQ or HearID personalization lets you shape it however you like. LDAC is a genuine perk on Android, pulling out finer details in complex tracks. ANC performance is even more impressive, sitting in the absolute top tier of what we've measured. It won't silence a jet engine like the Bose QuietComfort line does, but it significantly dampens the low rumble of traffic and background office chatter. The adaptive mode works smoothly, gradually ramping up when it senses a noisy environment.
Battery life is a standout: 10 hours on the buds themselves and 50 hours total with the case, which puts it ahead of nearly everything else in our database. Fast charging nets you four hours from a quick 10-minute top-up, so forgetting to charge overnight barely matters. Comfort is another strong point, the earbuds are tiny and light at 18g, and many owners report wearing them for hours without fatigue, though some find the left bud gets sore with larger ear tips. The six-mic call quality is among the best we've seen, so your voice comes through crisp even with wind and noise around. Bluetooth 5.2 is generally solid, though a few users mention occasional dropouts in signal-congested city centers. Multipoint works seamlessly for switching between laptop and phone.
Pros & Cons
Pros
- Call quality lands in the 97th percentile, so you sound crystal clear even in noisy spots. 97th
- Battery life is a standout: 10 hours per bud, 50 total, with fast charging and wireless charging. 97th
- Adaptive ANC is among the best in its class, effectively muting low-frequency rumbles. 94th
- LDAC and a fully customizable EQ let you tune sound quality well above average. 93th
- The lightweight, ergonomic design with multiple ear tips makes all-day wear a breeze.
Cons
- ANC can't match pricier rivals for higher-pitched noises like nearby voices.
- A subset of users report Bluetooth stutters in dense wireless environments.
- Touch controls are limited to a few functions; no volume control by default.
- Mode changes are indicated only by beeps, not voice prompts, leaving you guessing.
- Left earbud can cause soreness for those who need larger tips for a secure seal.
The Word on the Street
Specifications
Full Specifications
Design
| Form Factor | in-ear |
| Wearing Style | true wireless |
| Ear Tips | s |
| Weight | 0.0 kg / 0.0 lbs |
Audio
| Driver Type | dynamic |
| Driver Size | 11 |
| Drivers | 1 |
| Freq Min | 20 |
| Freq Max | 20000 |
| Impedance | 16 |
| Hi-Res Audio | Yes |
| Codecs | LDAC |
Noise Control
| ANC | Yes |
| ANC Type | adaptive |
| Transparency | Yes |
Connectivity
| Wireless | Yes |
| Bluetooth | 5.2 |
| Multipoint | Yes |
| Wired Connector | USB Type C |
Earbud Battery
| Battery Life | 10 |
| Charge Time | 10 |
| Fast Charging | 10 min for 4 hours playback |
| Charging | USB-C |
Case Battery
| Case Battery | 50 |
| Case Charging | USB-C |
| Wireless Charging | Yes |
Microphone
| Microphone | Yes |
| Mic Count | 6 |
| NC Mic | Yes |
Features
| Touch Controls | Yes |
| App | soundcore |
| Bone Conduction | No |
| Water Resistance | IPX4 |
Value & Pricing
For earbuds that frequently dip below $60, the Space A40 crams in an almost unfair amount of tech. LDAC support is usually reserved for $100+ models, and the ANC, while not class-leading, is easily one of the best you'll find under $80. When you throw in stellar battery life and top-notch call performance, the value proposition becomes a no-brainer. Competing buds like the EarFun Air Pro 4+ or Soundcore's own P31i offer similar feature sets, but the A40 typically edges them out in ANC, battery endurance, and mic quality.
If you can snag these on sale around $45, you're practically getting away with robbery. The charging case supports Qi wireless charging, the six mics beat what many $150 earbuds deliver, and the app's customization is genuinely useful. It's rare to see this many high-end conveniences at this price point, making it an easy recommendation for anyone who wants the most out of their dollar.
vs Competition
Stacked against the Samsung Galaxy Buds3 Pro, the Space A40 trades a bit of soundstage depth and seamless Samsung ecosystem integration for drastically longer battery life and a third of the price tag. The JBL Endurance Peak 4 is a better fit for gym-goers thanks to its secure ear-hook design and higher water resistance, but its ANC and overall sound quality lag behind what the A40 delivers. The Bose QuietComfort earbuds are the undisputed ANC champions, but at over three times the cost, the A40 makes a lot more sense for everyday commuters who don't need absolute silence.
EarFun's Air Pro 4+ is perhaps the closest rival, with similar adaptive ANC and wireless charging, but our data gives the A40 the edge in mic performance and battery stamina. If call quality and multipoint connectivity are your priorities, the Space A40 stands out even against pricier contenders. It's a jack of all trades that excels at the stuff most people actually need daily: long playtime, solid noise reduction, and clear calls.
| Spec | Anker Space A40 A3936 | Technics EAH-AZ100 EAH-AZ100 | Sony WF-1000XM6 WF-1000XM6 | Bose QuietComfort Ultra 896637-0010 | Sennheiser MOMENTUM True Wireless 4 | Samsung Galaxy Buds3 Pro SM-R630NZWAXAR |
|---|---|---|---|---|---|---|
| Form Factor | in-ear | in-ear | in-ear | in-ear | in-ear | in-ear |
| Driver Type | dynamic | Dynamic | Dynamic | Dynamic | dynamic | Dynamic |
| Wireless | true | true | true | true | true | true |
| Active Noise Cancellation | true | true | true | true | true | true |
| Bluetooth Version | 5.2 | 5.3 | 5.3 | 5.3 | 5.4 | 5.4 |
| Battery Life Hours | 10 | 8 | 8 | 6 | 30 | 6 |
| Case Battery Hours | 50 | 28 | 24 | 18 | 30 | 26 |
| Water Resistance | IPX4 | IPX4 | IPX4 | IPX4 | IP54 | IP57 |
| Multipoint | true | true | true | true | true | true |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | User Sentiment | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|---|
| Anker Space A40 A3936 | 96.6 | 96.9 | 79 | 87.8 | 94 | 93.4 | 91.9 | 91.6 | 60.3 |
| Technics EAH-AZ100 EAH-AZ100 Compare | 96.6 | 96.9 | 79 | 99.1 | 79.1 | 93.4 | 91.9 | 99.1 | 89.3 |
| Sony WF-1000XM6 WF-1000XM6 Compare | 96.6 | 99.7 | 79 | 96.2 | 75.6 | 70.9 | 79.1 | 99.1 | 94.4 |
| Bose QuietComfort Ultra 896637-0010 Compare | 96.6 | 90.4 | 79 | 96.4 | 47 | 93.4 | 91.9 | 97.8 | 96.7 |
| Sennheiser MOMENTUM True Wireless 4 Compare | 96.6 | 99.7 | 33.4 | 91.9 | 97.5 | 93.4 | 91.9 | 90 | 89.3 |
| Samsung Galaxy Buds3 Pro SM-R630NZWAXAR Compare | 96.6 | 96.9 | 98.8 | 91.8 | 72.6 | 93.4 | 0 | 99.6 | 89.3 |
Common Questions
Q: Does LDAC work with iPhones?
LDAC is an Android-only codec, so iPhone users won't get that higher bitrate streaming. The buds still support AAC, which sounds perfectly fine on iOS. The real benefit of LDAC is for Android users who want hi-res audio from services like Tidal or Apple Music's lossless tier.
Q: How does the noise cancelling compare to Bose or Sony?
Our data places the A40's ANC in the 97th percentile, which is outstanding for its price. It significantly cuts low-end rumbles like engine noise, but higher-frequency sounds like nearby chatter aren't silenced as thoroughly as Bose QuietComfort or Sony WF-1000XM5 earbuds. For everyday environments it's more than capable, but if you need near-total isolation, you'll need to spend more.
Q: Can I use these for running or gym workouts?
The IPX4 rating handles sweat and light rain, but the fit isn't designed for high-impact movement, and you may find yourself adjusting them often. Touch controls can also be annoying during exercise. If workouts are your main use, consider ear-hook designs like the JBL Endurance Peak 4 for a more secure hold.
Q: What's the real-world battery life after a few months of use?
With ANC and LDAC active, expect closer to 7-8 hours on the buds rather than the advertised 10. The 50-hour case total remains reliable, though some long-term owners notice slight degradation after a year, which is normal for lithium-ion batteries. The 10-minute fast charge for 4 hours remains a dependable quick fix.
Who Should Skip This
Skip the Space A40 if you're a gym regular or a serious runner. The fit isn't secure enough for high-impact movement, and the touch controls are far from ideal when you're bouncing around. Grab the JBL Endurance Peak 4 or Powerbeats Pro instead for a lockdown fit. Also, if you're an audiophile chasing a refined, natural soundstage, the A40's processed V-shape might leave you wanting. The Samsung Galaxy Buds3 Pro or Sony WF-1000XM5 deliver more detail and separation for those willing to pay extra. And if you live entirely within Apple's walled garden, the lack of auto-switching between devices might be a dealbreaker. AirPods are pricier, but they'll save you the headache if seamless Apple integration is non-negotiable.
Verdict
If you want a do-it-all pair of earbuds that won't empty your wallet, the Soundcore Space A40 is the best value right now. It's perfect for commuters, office workers, and anyone who needs long battery life and effective ANC without spending a fortune. Frequent flyers will appreciate the adaptive noise cancelling, though it won't block out conversation as thoroughly as top-tier over-ears.
For fitness, however, you should look elsewhere. The IPX4 rating can handle sweat, but the fit isn't secure enough for heavy movement, and the touch controls are frustrating when you're mid-run. The JBL Endurance Peak 4 or Powerbeats Pro are better picks for gym rats. And if you're deeply embedded in Apple's ecosystem with multiple devices, the lack of automatic switching might push you toward AirPods, but you'll pay twice as much for that convenience.