The Sony WF-1000XM4 Bluetooth Earbuds Review examines the features of the product, in addition to its design and functioning, that differentiate it from other earbuds of the same kind. We’ll look at the changes between the Sony WF-1000XM4 model and other models in light of the different Sony upgrades.

1. Sony WF-1000XM4 Bluetooth Earbuds
Review
The Sony WF-1000XM4 Bluetooth Earbuds Review examines the features of the
product, in addition to its design and functioning, that differentiate it from other earbuds
of the same kind. We’ll look at the changes between the Sony WF-1000XM4 model and
other models in light of the different Sony upgrades.
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2. Table Of Contents
● Specification of Sony WF-1000XM4 Bluetooth earbuds
● Packing
● Case
● Design
● UX
● Battery
● Mic
● Sound
● Noise-canceling
● Reliability and connectivity
● Waterproof
● Comparisons
● Sony WF-1000XM4 Vs Sony LinkBuds S
● Sony WF-1000XM4 Vs Apple AirPods Pro(2nd Generation)
● Sony WF-1000XM4 Vs Last ZE3000
● FAQ’s
● Conclusion
● References
The WH line of headphones from Sony has had tremendous growth in the Bluetooth
headphone market. Sony’s desire to duplicate that achievement in the TWS market is
therefore only logical.
True wireless earbuds are difficult to find, especially with the enormous success of
Apple’s AirPods and AirPods Pro. It might be difficult to recognize an “AirPods killer”
when you see one since there are so many products out there making the claim. The
Sony WF-1000XM4 is the “AirPods killer” if there ever was one.
Let’s look at what makes it one of the top wireless earbud sets available.

3. Note: if you want more information about the headsets, such as the Stax SR-L300
Review “Techeadsets” provide information to help you choose the best headsets wired
or wireless, and headphones.
Introducing the fourth generation of Sony’s premium TWS Bluetooth IEMs, the
WF-1000XM4. They boast outstanding tuning from the 6mm single dynamic drivers and
class-leading ANC. The WF-1000XM4 is the most costly TWS in Sony’s portfolio, which
is reflected in the price.
Note: If you want to Purchase “WF-1000XM4 Industry Leading Noise Canceling Truly
Wireless Earbuds” then check Official SONY ELECTRONICS Website(1).
Specification of Sony WF-1000XM4 Bluetooth earbuds
Made by: Sony
Model: Sony WF-1000XM4
Bluetooth Technology Version: 5.0
IP Rating: IPX4 (Waterproof)
Battery Time: 12hr
Charge Time: 120 mins (15mins Charge)
Connector: Type-C USB
Wireless Charging Mode: Yes

4. Material: Soft plastic
Volume loudness: 80.4 cm cu
Active Noise Cancellation: Good
Control Technology: Touch system
Driver: 6mm dynamic driver
Audio Codec: AAC, LDAC, SBC
Weight: 56.7g
Note: If you want to know more about the “Sony WF-1000XM4 review” then check this
article(2).
Packing
Your first experience with the WF-1000XM4 is unexpected. Sony has abandoned the
customary glossy box in favor of recyclable packaging fashioned from a unique paper
combination. This results in a plastic-free, more compact box that is 34% smaller than
the WF-1000XM3’s. Although it doesn’t exactly give off the impression that you’ve just
purchased a set of high-end noise-canceling headphones, this is wonderful news for the
environment.
When you remove the WF-1000XM4 from its package, a small, black charging case
greets you. It is significantly smaller (40%) than the charging case that came with the
Bose Quiet Comfort Earbuds and smaller than the case that came with its
predecessors.

5. Case
The case enables wireless charging for the WF-1000X family for the first time when
used with an appropriate Qi charging pad. You may even utilise their power supply and
batteries with compatible smartphones.
Note: If you want to know more about “Sony WF-1000XM4 long-term review” then
check this article(3).
Design
Other TWS IEMs on the market do not resemble the WF-1000XM4 in any way. The
golden vent at the top emphasises their unique style. Despite the large shell, the IEMs
are remarkably pleasant to wear because of the inner faceplate’s flattened design and
the nozzle’s thin yet extended design.
The IR sensor for wear detection, charging connectors, and another vent are all located
on the IEM’s inside side. A mic with a golden accented outline is visible next to the Sony
logo. Capacitive touch sensors cover the whole top surface and can be given different
functions and controls.
UX
The touchscreen on the circumferential outside of each earbud may be used to change
how each one functions using the Headphones Connect app. Through the typical
combination of taps, presses, and long holds, they may adjust volume and playback or
switch between noise-cancelling and environmental sound modes—and the
headphones react quickly to these commands.

6. With no trouble, you can change sound modes, adjust volume, and activate and
deactivate features like Quick Attention (which reduces the volume so you can rapidly
carry on a conversation without removing the earphones from your ears.)
Note: If you want to know more about “Review: Sony WF-1000XM4 – Nearing
Perfection” then check this article(4).
Battery
In addition to the 8 hours (ANC on) or 12 hours (ANC off) of battery life on the IEMs
themselves, the case can hold an extra 16 hours of charge. During normal use, I need
to charge them around once a week (using the LDAC codec). Your results may be
different.
Sony states that it would take the WF-1000XM4 3 hours to completely charge, however,
I’ve discovered that utilizing a USB-PD-approved charger will reduce that time to 1.5
hours.
Mic
Although the Sony WF-1000XM4 has a good microphone, AAC has a slightly negative
impact. For phone conversations, though, it functions perfectly. In order to assist the
microphone to distinguish between sounds you wish to be amplified and background
noise, another function detects when you talk. It serves a purpose even if you might not
notice it as much. However, Sony actually doesn’t want you to worry about stuff like this;
they simply want your audio to sound nice.
Microphones have a particularly difficult time transmitting speech clearly when there is
background noise.

7. Note: If you want to know more about the “Sony WF-1000XM4 Wireless Earbuds
review” then check this article(5).
Sound
The WF-1000XM4 is pretty sensitive to changes in the ear tips, therefore I’d want to
mention that before moving on to the sound impressions. The overall dynamics were
decreased by the stock tips’ excessive bass, which also killed the treble sparkle.
The Sony EP-EX11 tips should be tried since they considerably tighten the bass without
drastically altering the sound.
Most of the bass response is sub-bass-focused. The lower midrange is significantly
obscured by the original setup’s concentration on bass.
As a result, transients are significantly softer, and both electric and acoustic guitars’
leading edges sound slightly smoother. However, because it contributes to the general
“casual” vibe of the IEMs, the color is pleasant.
After 10 kHz, the treble gradually darkens and rolls off. There isn’t much air here.
The voices seem tonally correct, and there is no shortness in the mids. Female vocals
are pushed back into the mix and don’t stand out too much, while male voices have
been given more weight. After 10 kHz, the treble gradually darkens and rolls off. There
isn’t much air here.
The driver is less sharp than other rivals but quicker than the average TWS. The staging
is generally well-rounded, big enough to feel like it’s not crammed into a little space but
not quite far enough to achieve that “out of your head” feeling. Although center imaging
degrades, as is typical for IEMs, imaging is rather precise.

8. The sound character of the WF-1000XM4 rarely changes when the ANC is turned on.
Additionally, the ANC enables lower-than-required volume use of the headphones.
Note: If you want to know more about the “Sony WF-1000XM4 review” then check this
article(6).
Noise-canceling
The WF-1000XM4 is another example of how well Sony’s digital noise-canceling
technology performs. The earphones are quite effective at muting much of the sounds
around you despite their small size.
The WF-1000XM4 has a much more effective noise filter than the less expensive
earbuds on the market that also make this promise. While more affordable versions
frequently tend to just cover the low frequencies, this one covers a considerably wider
range of the ambient noise audio spectrum, including the mids and higher frequencies.
The final outcome is considerably fuller control over background noise.
The WF-1000XM4 falls short in terms of transparency mode quality, which Sony refers
to as Ambient Sound. Compared to some of the options out there, such as the AirPods
Pro, it sounds a little tinny and artificial. In contrast, the transparency mode on the
OnePlus Buds Pro sounds more natural.
Reliability and connectivity
In my tests, the WF-1000XM4 operated mostly reliably. No connectivity problems or
audio lag were found while testing using SBC and AAC codecs.
Things are a little bit more erratic with LDAC. While 330kbps and 660kbps performed
well, 990kbps occasionally caused rather significant drops in quality, requiring a

9. reduction to at least 660kbps. The strange thing was that this didn’t always happen;
sometimes, listening at 990kbps generated no problems at all.
I also noted the LDAC difficulties with the WH-1000XM4 when I reviewed them back in
2020. It seems to be a problem with Sony products frequently, which is strange given
that it is a Sony codec. The only time this will be a problem is if you manually change
the bitrate to 990 kbps; otherwise, if you keep it on auto, there won’t be any problems.
Waterproof
The WF-1000XM4 is protected from water sprays and light splashes thanks to its IPX4
classification, but there is no dust protection.
Comparisons
Sony WF-1000XM4 Vs Sony LinkBuds S
Similar to the WF-1000XM4 earbuds, the Sony LinkBuds S has ANC and a closed
design. However, the LinkBuds S is $80 USD less expensive. The LinkBuds S features
a bland, uninteresting look as a trade-off, and its housings and casing attract dirt and
fluff, necessitating more frequent cleaning of all components.
The LinkBuds S has many of the same software functions as the WF-1000XM4, such as
speak-to-chat and 360 Reality Audio optimization. The LinkBuds S’s battery life is a little
bit shorter, lasting 5 hours, 41 minutes in our tests, but you can use the case to quickly
charge the earbuds. 60 minutes of listening are possible after five minutes of charging.
These have all the facts that the WF-1000XM4 has superior to the Sony LinkBuds S.
Sony WF-1000XM4 Vs Apple AirPods Pro(2nd Generation)

10. Compared to the AirPods Pro (2nd generation), the Sony WF-1000XM4 effectively
blocks more noise overall, although Apple’s ANC is better at canceling middle
frequencies. However, the WF-1000XM4’s passive isolation is clearly superior to the
AirPods Pro (2nd gen) when ANC is disabled.
Most individuals will discover that the Sony earphones fit more comfortably than the
new AirPods Pro because of the memory foam ear tips. However, both pairs of earbuds
are quite comfortable. Both earbuds receive the same IPX4 rating, however, only
Apple’s casing is also IPX4 rated.
While the Sony WF-1000XM4 is still a more flexible device, Apple AirPods Pro (2nd
generation) are the greatest choice for iPhone owners in terms of simplicity of use. With
Sony’s earbuds, you may choose to prioritize connection reliability over sound quality,
benefit from an integrated custom EQ, and more. The better option for listeners who
frequently switch between Android and iOS is Sony’s line of earphones.
Sony WF-1000XM4 Vs Last ZE3000
The Sony WF-1000XM4 is around $100 more expensive than Final Audio’s entry-level
TWS IEMs, the Final ZE3000.
You give up app support, ANC, wear detection, and other smart features that are only
available on the Sony pair with the price reduction. Bummer. You can completely skip
this section if you require ANC and similar things. But if sound quality is important to
you, keep reading.
The Final ZE3000 have fallen behind so far in this, but its sound quality alone gives
them a boost. Simply said, the bass is tighter, quicker, and has greater texture on the
ZE3000 than it does on the WF-1000XM4.
The treble has significantly more sparkle, and the mids have exceptional clarity. Even in
comparison to wired IEMs, staging is quite expansive. Imaging is somewhat more
accurate as well. The only areas where the Sony pair is superior are stage depth and
overall sound smoothness.

11. FAQ’s
How do you control the earbuds’ volume?
You must download and assign it using the Sony | Headphones Connect app. The
factory default setting prevents you from using the earbuds to change the volume.
Check out this Sony user manual.
Is independent usage of the buds possible?
They do, in fact, encourage independent listening. This implies that you can charge one
while using the other.
Can you use Sony WF-1000XM4 while charging?
They are not functional when charging. However, charging while you play is not a
problem due to the extended battery life and quick charging time.
Can I sleep with Sony WF-1000XM4?
The Sony WF-1000XM4 is a fantastic choice for back sleepers or those who like to nap
during long travels since it features excellent noise cancellation and soft cushion foam
ear tips.
Conclusion
The WF-1000XM4 from Sony is one of the TWS IEMs with the greatest features. The
WF-1000XM4 further sets itself apart from the competition due to the smart features’
cross-platform compatibility (something Apple Airpods and their equivalents cannot
claim).
There are still several elements that need improvement. The technical aspects might be
improved overall, and the cost of a pair of TWS IEMs is very costly. ANC on IEMs

12. performs less well than on full-size headphones (i.e., there is no filtering of
high-frequency noise).
To get all the bells and whistles, you must pay, though. The Sony WF-1000XM4 is one
of the top TWS IEMs overall, according to performance.
References
1 “WF-1000XM4 Industry Leading Noise Canceling Truly Wireless Earbuds.”
electronics.sony.
2 “Sony WF-1000XM4 review.” soundguys.
3 “Sony WF-1000XM4 long-term review.” gsmarena.
4 “Review: Sony WF-1000XM4 – Nearing Perfection.” headphonesty.
5 “Sony WF-1000XM4 Wireless Earbuds review.” techradar.
6 “Sony WF-1000XM4 review.” whathifi.