The Anker Soundcore Space A40 Truly Wireless are lower mid-range noise cancelling in-ears with a few extra features sure to please most users. They have an adaptive active noise cancelling (ANC) system, which outperforms similar products from this manufacturer, like the Anker SoundCore Life P3 Truly Wireless. They also support LDAC codec, which is Sony's proprietary codec for hi-res audio, and have robust sound customization features via their companion app. You can even wirelessly recharge their carrying case, making them a solid choice if you're looking for affordable yet versatile in-ears.
The Anker Soundcore Space A40 are fair for neutral sound. Out of the box, they have a warm sound profile, making vocals and instruments sound cozy. Their sound lacks thump and rumble, and their underemphasized treble range veils details in your mixes. Luckily, you can fine-tune their sound using the companion app's graphic EQ and presets. Just keep in mind that their in-ear design means that their soundstage isn't very immersive.
The Anker Soundcore Space A40 are great for commute and travel. Thanks to their adaptive ANC system, they can block out the low rumble of bus and plane engines very well. They have a comfortable fit, and since they're small and lightweight, you can easily put them into most pockets and bags on the go. They even last over eight hours continuously, and their carrying case supplies an extra four charges if you need it.
The Anker Soundcore Space A40 are great for sports and fitness. These comfortable and well-built in-ears are certified IPX4 for resistance against water splashes, making them a solid choice for tough workouts. They lack stability fins, and the buds can wiggle out of your ears while talking or chewing, which is a bit annoying.
The Anker Soundcore Space A40 are good for office use. These buds have a comfortable fit, and their continuous battery life of over eight hours will last through your workday. If you need to top them up, their carrying case supplies an additional four charges. They also have an adaptive ANC system, which can cut down office chit-chat as well as the high-pitched hum of AC units around you. They support multi-device pairing, meaning you can stay connected to your PC and smartphone simultaneously.
The Anker Soundcore Space A40 are truly wireless headphones. While you can connect them to Bluetooth-enabled PCs, their latency is likely too high for this purpose, even when using their low-latency 'Game Mode'.
The Anker Soundcore Space A40 are Bluetooth-only headphones, and you can't use them wired.
The Anker Soundcore Space A40 are passable for phone calls. They have an integrated mic, but it has poor audio quality. Your voice sounds distant and sibilant, which is unpleasant to hear. While the mic does a better job at separating your voice from moderate background noise, speech can be drowned out by loud noises, such as that coming from a busy street. On the upside, thanks to their ANC system, you can block out ambient sound to help you focus on your call.
The Anker Soundcore Space A40 come in three color variants: 'Black', 'White', and 'Blue'. We tested the 'Black' variant, and you can see our model's label here. If you come across another variant of these headphones, please let us know in the discussions, and we'll update our review.
The Anker Soundcore Space A40 are truly wireless headphones with a powerful adaptive ANC performance. They can block out an outstanding amount of ambient noise that rivals high-end competitors like the Sony WF-1000XM4 Truly Wireless and Sennheiser MOMENTUM True Wireless 3, but you can also switch to one of five manual ANC modes if you prefer a different level of noise isolation. Like the Anker Soundcore Liberty 3 Pro Truly Wireless, they also support LDAC codec for streaming hi-res audio on supported apps. Unfortunately, their mic's recording quality is similarly poor, so if you care about call quality, check out our picks for the best earbuds and Bluetooth headsets for phone calls.
Check out our recommendations for the best wireless Bluetooth earbuds, and the best noise cancelling earbuds.
The Anker Soundcore Space A40 Truly Wireless offer a better overall performance than the Sony WF-1000XM4 Truly Wireless. The Anker are more comfortable, have a more neutral sound profile, which some users may prefer, and their adaptive ANC does a significantly better job of blocking background noise. However, the Sony are better-built and have a more stable in-ear fit. Their continuous battery life is longer, though the Anker still have more extra charges in their case.
The Anker Soundcore Space A40 Truly Wireless are slightly better in-ears than the Anker Soundcore Liberty 3 Pro Truly Wireless. While both headphones are similarly comfortable and well-built, the Space A40 have a significantly better noise isolation performance, a longer-lasting continuous battery life, and one more additional charge in the case. However, the Liberty 3 Pro have a more stable in-ear fit.
The Anker Soundcore Space A40 Truly Wireless have a slight edge over the Anker SoundCore Life P3 Truly Wireless. While both headphones are comfortable and well-built, the Space A40 have a significantly better noise isolation performance, a longer continuous battery life, and support multi-device pairing. However, the Life P3 have a more neutral sound profile, which some users may prefer.
The Anker Soundcore Space A40 Truly Wireless are better in-ears than the Anker Soundcore Liberty 4 True Wireless. While both buds are well-built and comfortable, the Space A40 have a better-balanced sound profile, which some users may prefer, and their ANC system does a significantly better job of blocking out background noise. They also have a better battery performance. However, the Liberty 4 have a virtual soundstage feature to help immerse you in your audio, and their companion app offers more overall features.
The Jabra Elite 7 Pro True Wireless and the Anker Soundcore Space A40 Truly Wireless have different strengths, and depending on your usage, you may prefer either one. While both buds are comfortable, well-built, and have similar battery performances, the Jabra have a more neutral and balanced sound profile, which some users may prefer. However, the Anker have a significantly better noise isolation performance.
The Anker Soundcore Space A40 Truly Wireless are better budget-friendly headphones than the Nothing Ear (stick) Truly Wireless. The Anker are in-ears with ANC, meaning they can block out a significant amount of background noise around you. They have a superior battery performance, and support multi-device pairing as well as LDAC codec for Hi-Res audio. However, the Nothing are earbuds with a one-size-fits-all design. They're more comfortable, better built, and have a more neutral sound profile, which some users may prefer.
The Anker Soundcore Space A40 look somewhat similar in design to the Anker Soundcore Life Dot 2 Truly Wireless. They have a stemless bud design with a glossy frame and a semi-matte touch-sensitive surface. The touch surface also has the manufacturer's logo, and these headphones come in three color variants: 'Black', 'White', and 'Blue'.
These headphones have a comfortable in-ear fit. They don't have as deep of a fit as other headphones from this manufacturer, like the Anker Soundcore Life Dot 2 Truly Wireless. They also feel lightweight, and using the controls doesn't push the buds deeper into your ear. However, they can cause a plunging feeling when you're putting them in for the first time.
These buds have good controls. There's a touch-sensitive surface on each bud, but they aren't the most intuitive to use since the layout splits controls on each bud. Luckily, you can use the companion app to remap the controls to your liking, and you can even add volume controls without losing other commands. There are also audible chimes while cycling between ANC on, normal mode, and transparency mode. There are tones available for tap feedback too, but you'll have to activate this via the companion app.
On the left bud:
On the right bud:
On either bud:
The carrying case feels good and sturdy. It's mostly made of matte plastic on the outside and glossy plastic inside the case. There are three LED lights at the front of the case to indicate the battery charge and a reset/pairing button on the back of the base.
These in-ears are decently stable, although they lack stability fins to ensure a truly stable fit. They'll stay in place if you're listening to audio at your desk or on the couch, but talking and chewing can break the ear tips' seal, causing the buds to wiggle around. If you wear them during moderate to intense physical activity, they may fall out.
The Anker Soundcore Space A40 have a warm sound profile. Although they lack thump and rumble, they have a bit of extra high-bass to add warmth to vocals and instruments. A dip in the treble range means that vocals and instruments lack detail and clarity. Luckily, if you prefer a different sound, their companion app offers a graphic EQ and presets to help you customize their sound to your liking.
These headphones have great bass accuracy. The response is tilted, resulting in an underemphasis of low to mid-bass. Mixes lack thump and rumble, as well as punch and kick. However, the response gets close to neutral in the high-bass range, which helps add warmth and boom back into your mix.
The Anker Soundcore Space A40 have great mid accuracy. Like the bass, the mid response is tilted. While the low-mids are flat and neutral, which results in present vocals and instruments, the mid to high-mid is rolled off. It nudges vocals and instruments to the back of the mix as well as weakens them.
The treble accuracy is mediocre. The response is mostly underemphasized, resulting in very veiled vocals and instruments as well as dull sibilants like cymbals. In songs like Rock Me Amadeus by Falco, hi-hats in the first verse sound a bit lispy, while the lead singer's voice lacks detail.
The peaks and dips performance is good. There's a peak in the low-mid, which is more prominent in the left driver and muddies vocals and instruments. A dip in the low-treble veils the upper harmonics of vocals and lead instruments. A significant peak in the mid-treble turns sibilants like cymbals piercing.
The imaging performance is outstanding. Generally, most Anker headphones have well-matched drivers, which can indicate quality control and ergonomics. Earbuds and in-ears also tend to be better matched than their over-ear counterparts. Our unit's L/R drivers are also well-matched when it comes to group delay, phase, amplitude, and frequency response, which is important for the accurate placement of objects like voices in the stereo image. While there are a couple of minor peaks in the phase response's low to mid-mid, it's unlikely that you'll notice it with real-life content.
The passive soundstage performance is bad. However, that's to be expected from in-ears as their design bypasses your outer ear. To create an immersive soundstage, the outer ear has to be activated by sound resonances. As a result, their soundstage sounds closed-off, unnatural, small, and as if sound is coming from inside your head rather than from speakers placed in the room around you.
The Anker Soundcore Space A40's weighted harmonic distortion performance is good. There's a peak in the low-treble range, which is more noticeable in the right driver at moderate and high volumes. However, this peak is hard to hear with real-life content. The rest of the response falls within good levels, resulting in mostly clear and pure audio reproduction.
These are the settings used to test these in-ears. Our results are only valid when using them with these settings.
The noise isolation performance is outstanding. Unlike other budget-friendly picks like the Nothing Ear (stick) Truly Wireless, these buds have an adaptive ANC system, which means they automatically adjust to the noise in your environment. If you prefer, you can manually set the amount of ANC between 'Low', 'Medium', and 'High'. That said, the adaptive ANC can block out slightly more bass-range noise when it recognizes a 'High' noise environment than when the ANC is manually set to 'Strong'. You can see a comparison between these modes here. The adaptive ANC can block out the low rumble of bus engines. It also cuts down ambient chatter as well as the high-pitched hum of AC units well.
The integrated mic's recording quality is poor. Your voice sounds far away and sibilant. Our unit's right earbud also enters a feedback loop when using the mic, resulting in your own voice playing quietly by the right bud. The mic also doesn't do a very good job when connected to a phone. You can hear the recorded speech file here.
The integrated mic has a satisfactory noise handling performance. You shouldn't encounter issues being understood clearly in a moderately noisy environment. However, if you're taking calls from somewhere like a busy street with a lot of loud noises, your voice can get lost in the sound, making it more difficult for others to hear you clearly.
The battery performance is good. The manufacturer advertises them to have 10 hours continuously, and we measured eight hours. That said, battery life can vary depending on usage. If you need a top-up, their carrying case supplies an additional four charges, which is handy in a pinch. They also have an auto-off timer, which helps conserve battery life when not in use, and you can use one bud while the other charges.
The Anker Soundcore app is great. You can see a video of how it works here. This app allows you to change your ANC settings as well as switch between manual and adaptive ANC, and customize the transparency mode. You can add a volume limiter, remap controls, and update the firmware. You can even customize their sound profile using their companion app's graphic EQ and presets, as well as switch to LDAC codec.
The Anker Soundcore Space A40 have great Bluetooth connectivity. They support multi-device pairing, meaning you can connect your headphones to two devices at a time. While they have high latency on PCs, their latency is lower on iOS and Android devices, ensuring your audio and visuals stay in sync. These headphones also support LDAC, which is Sony's proprietary hi-res codec. However, you need to use compatible audio to benefit from this codec, and you can only connect to one device at a time. These buds have a 'Game Mode' too, which can help lower latency within good values for streaming video. Their latency on Android is lower using this mode, which is good if you're mobile gaming, but their PC latency stays fairly similar to their default latency. Their iOS latency is higher when using this mode too, but it still falls within good values. That said, since we use Youtube to measure latency on this device, this result may be due to the app's own latency compensation as we were able to measure lower latency on iOS when the 'Game Mode' is off.
These headphones can connect to Bluetooth-enabled PCs with full audio and mic compatibility. That said, you can't connect these headphones to your PC in any other way.
The Anker Soundcore Space A40 come with a carrying case that has a USB-C input for the charging cable. It supports Qi Wireless charging too. However, the case has no other inputs.