The Space A40 is the value pick for small ears that still want real ANC. RTINGS highlights its five ear-tip sizes (XS-XL) for fitting small canals, and SoundGuys scored the buds 7.4/10 with an 8.5/10 ANC rating. TechHive gave them an Editors' Choice. They are smaller than Anker's other ANC models, run 50 hours with the case, and add LDAC, all for roughly a third of the Sony's price.
Full review
Comfort and Fit
The Space A40 earns its small-ears placement on fit range. RTINGS singled out the five sets of ear tips that ensure the right fit for users with ears of all different sizes, and SoundGuys measured the smallest tip at roughly 10.1mm, small enough that, with five sizes to choose from, most small to slightly-above-average canals find a match. Anker also made the A40 smaller and lighter than its other ANC earbuds, with an ergonomic shape that SoundGuys described as comfortable for extended wear.
For a small-ear buyer the breadth of tip sizing is the decisive feature: where many budget ANC buds ship three sizes, the A40's XS-to-XL range gives a real chance of sealing a small canal without aftermarket tips. The trade-off is that the body itself is larger than the truly tiny JLab JBuds Mini, so it is the right pick for small ears that can seat a normal-size bud, not for the shallowest ears that need a micro-body.
Noise Cancellation
ANC is the A40's headline and the reason it ranks above the no-ANC budget options. SoundGuys rated its active noise cancelling 8.5 out of 10 and reported that it does a great job canceling out noise, especially in the lower end between 40 and 100Hz, where traffic, trains, and buses live. That is flagship-adjacent performance at a budget price, which is why TechHive called it top-tier ANC without the top-tier pricing and handed it an Editors' Choice.
The adaptive mode automatically adjusts cancellation to your surroundings, which mostly works well, though reviewers noted it occasionally misjudges quiet rooms and pumps more than necessary. Against the Sony WF-1000XM5 the A40 gives up the last measure of ANC depth, but the gap is far smaller than the price gap, and against the JLab JBuds Mini and TOZO T6, which rely on passive isolation only, it is not a contest.
Sound Quality
The A40 uses 10mm double-layer diaphragm drivers and supports LDAC for hi-res audio, which is genuinely rare at this price. SoundGuys praised the EQ options that let you reshape the default tuning, which leans bass-heavy out of the box. Left flat, the low end can overwhelm the mids, but the Soundcore app's parametric EQ tames it quickly, and LDAC adds detail on compatible Android phones.
It will not out-resolve the Sony WF-1000XM5, but it comfortably beats the budget trio below it on staging and clarity once EQ'd. SoundGuys' overall 7.4 reflects a strong all-rounder whose sound is good rather than exceptional, which is exactly what you expect from the value ANC pick.
Battery and Features
Battery life is a genuine strength: ten hours per charge with ANC on and 50 hours total with the case, the longest runtime in this group and well ahead of the Sony's 24-hour total. Fast charging delivers four hours from a ten-minute top-up, and the case supports both USB-C and wireless charging. SoundGuys' bench test confirmed nearly eight hours of real playback with ANC enabled.
The feature set punches above the price with multipoint Bluetooth, app-based EQ, and adaptive ANC, though it runs the older Bluetooth 5.2 standard rather than 5.3 or 5.4. Touch controls are functional but not the most responsive, a common budget compromise. For the money, the feature breadth is the A40's quiet superpower.
Where It Falls Short
The A40's compromises are the predictable ones at its price. The default tuning is too bass-heavy for neutral listening and really needs EQ, the adaptive ANC sometimes overreacts in quiet spaces, and the older Bluetooth 5.2 radio trails newer rivals on paper. None are dealbreakers, but they mark the line between a great-value bud and a flagship.
For the smallest ears specifically, the A40's body is larger than the micro-size JLab JBuds Mini, so listeners who need the tiniest possible bud should weigh that instead. The A40 is the pick for small ears that can seat a normal earbud and want maximum ANC-per-dollar, not for the extreme low end of ear size.
Value and How It Compares
The A40's value is the best-balanced in this group. SoundGuys' 7.4 overall and 8.5 ANC scores, plus TechHive's Editors' Choice for top-tier ANC without top-tier pricing, describe a bud that delivers most of a flagship's noise cancelling, LDAC hi-res audio, multipoint, and a class-leading 50-hour battery for roughly a third of the Sony's price. For a small-ear buyer who wants real ANC without overspending, that combination is hard to beat.
Positioned against the field, the A40 splits the difference between the premium Sony WF-1000XM5 and the tiny budget pair. It gives up sound and ANC depth to the Sony but crushes the JLab JBuds Mini and TOZO T6, which have no active cancelling at all. Its five tip sizes match the Sony's small-ear fit range, while the tiny JBuds Mini wins only when the ear is too shallow for a normal-size body.
Who It's Best For
Choose the Space A40 if you have small ears, want real adaptive noise cancellation and long battery life, and do not want to spend flagship money. Its five tip sizes give a strong shot at a secure small-canal seal, and its ANC and LDAC support deliver value that reviewers repeatedly call out as unusual at this price.
Step up to the Sony WF-1000XM5 if you want the best ANC and sound regardless of cost, or down to the JLab JBuds Mini if your ears are so small that even a compact normal-size body will not seat. The A40 is the sweet-spot value pick between the premium Sony and the tiny budget options.
Strengths
- +Five ear-tip sizes (XS-XL), with RTINGS noting the smallest fits genuinely small canals
- +Strong adaptive ANC that SoundGuys rated 8.5/10, excellent for the price
- +Smaller and lighter than Anker's other ANC earbuds, with an ergonomic shape
- +LDAC hi-res audio and multipoint, rare at well under $100
- +50 hours total battery life with the case, the longest in this group
Watch-outs
- −Bluetooth 5.2 rather than the newer 5.3/5.4 on some rivals
- −Sound leans bass-heavy out of the box and needs EQ to balance
- −Auto-ANC occasionally misjudges quiet environments
- −Touch controls are functional but not the most responsive
How it compares
The value ANC pick. It gives up sound quality and ANC depth to the Sony WF-1000XM5 but costs a third as much, and it offers far stronger noise cancellation than the JLab JBuds Mini or TOZO T6, neither of which has true ANC. Its five tip sizes match the Sony WF-1000XM5 for small-ear fit range, while the tiny JLab JBuds Mini wins only on sheer smallness.
Who this is for
At a glance: small-ear listeners who want genuine adaptive noise cancelling and long battery life without paying flagship prices.
Why you’d buy the Anker Soundcore Space A40
- Five ear-tip sizes (XS-XL), with RTINGS noting the smallest fits genuinely small canals.
- Strong adaptive ANC that SoundGuys rated 8.5/10, excellent for the price.
- Smaller and lighter than Anker's other ANC earbuds, with an ergonomic shape.
Why you’d skip it
- Bluetooth 5.2 rather than the newer 5.3/5.4 on some rivals.
- Sound leans bass-heavy out of the box and needs EQ to balance.
- Auto-ANC occasionally misjudges quiet environments.
Rating sources
“Great noise canceling and EQ options at a relatively low price.”
“If you want top-tier design, sound, and effective active noise cancellation without the top-tier pricing, check out Anker's unpretentious Soundcore Space A40.”
“they have five sets of ear tips to ensure the right fit for users with ears of all different sizes”
Our 4.4 score is the average of these published ratings. Ratings marked * were derived from the reviewer’s written analysis or video transcript — the publisher didn’t print an explicit numeric score, so we inferred one from their own words. Click through to verify. More about methodology.
