A few years ago, the Sony WF-1000XM4 set a new bar for noise-cancelling earbuds. But as battery drain stories piled up and the WF-1000XM5 arrived, many owners are asking: are these still worth it? This review digs into the real-world performance, the firmware fixes, and how they stack up against the newer model.

Battery life (buds): 8 hours ·
Battery life (with case): 24 hours ·
Driver size: 6 mm ·
Water resistance: IPX4

Quick snapshot

1Confirmed facts
  • 6mm driver, IPX4 rating, LDAC support, released June 2021 (SoundGuys)
  • Battery life rated at 8 hours with ANC on (Laptop Mag)
  • Both models support wireless charging (SoundGuys)
2What’s unclear
  • Exact discontinuation date from Sony
  • Long-term battery degradation rates under heavy use
  • Whether future firmware updates will further address drain issues
3Timeline signal
  • WF-1000XM5 launched in July 2023 as direct successor (SoundGuys)
  • User reports of battery drain surfaced after firmware updates in 2022 (Laptop Mag)
  • SoundGuys testing found no battery drain in their unit (SoundGuys)
4What’s next
  • Consider upgrading to XM5 for better call quality and fit (Major HiFi)
  • Stick with XM4 if satisfied with ANC and sound; apply battery-saving tips (Major HiFi)
Key specifications at a glance
Feature Value
Driver size 6mm
Battery life (buds) 8 hours
Water resistance IPX4
Noise cancelling Adaptive
Weight 7.3g per earbud

Is the Sony WF-1000XM4 still worth it?

Current pricing and value

As of mid-2025, the WF-1000XM4 still sells for around $279.99 new, according to Laptop Mag. That puts it only $20 below the WF-1000XM5. For that price, you get excellent adaptive noise cancelling and LDAC support — features that still compete well with newer rivals. The catch: battery drain reports have made some buyers cautious.

How long will Sony support WF-1000XM4?

Sony released firmware updates after battery drain complaints, though the company has not disclosed a formal end-of-support date. SoundGuys noted that any battery-drain issues may not affect all units equally. Given that the XM5 is now the flagship, major software updates for the XM4 are unlikely.

Bottom line: The WF-1000XM4 remains a solid ANC performer. For budget-conscious buyers who prioritize noise cancelling over call quality, it’s a good value — provided you accept the battery risk. The trade-off means heavy users who need reliable battery should consider the XM5 instead.

Sony WF-1000XM4 vs WF-1000XM5: Which is better?

Four key areas separate the two Sony generations, with one consistent pattern: the XM5 refines nearly every aspect without a radical redesign.

Feature WF-1000XM4 WF-1000XM5
Bluetooth version 5.2 5.3
Battery (ANC on) 8 hours (tested 7h43m) 8 hours (tested 9h32m)
Quick charge 5 min → 60 min 3 min → 60 min
Water resistance IPX4 IPX4
Driver 6mm 8.4mm
Weight per bud 7.3g 5.9g

Sources: review site SoundGuys, tech publication Laptop Mag

Design and comfort

The XM5 is 20% smaller and 1.4g lighter per bud, making it more comfortable for long sessions. Both use foam tips, but the XM5’s redesigned shape fits more ears. Major HiFi calls the XM5 “noticeably more comfortable.” The implication: if the XM4’s bulk bothered you, the XM5 is a clear upgrade.

Sound quality comparison

Both support LDAC, DSEE Extreme, and 360 Reality Audio. The XM5 has a larger 8.4mm driver and a more natural sound signature. Major HiFi notes the main difference is the XM5’s refined tuning and personalized EQ.

Noise cancelling performance

SoundGuys measured the XM5 attenuating sub-bass up to 32 dB versus 28 dB for the XM4. Both use adaptive ANC, but the XM5 has a clear edge on deep low frequencies. The catch: the XM4 still delivers top-tier isolation that rivals most 2025 competitors.

Battery life and features

SoundGuys tested the XM5 at 9 hours 32 minutes with ANC on, versus 7 hours 43 minutes for the XM4 — a meaningful gap. The XM5 also charges faster: 3 minutes for 1 hour of playback, compared to 5 minutes for the XM4, per Laptop Mag.

Bottom line: The trade-off: the XM4 is still exceptional for ANC at a lower price. For most buyers, the XM5’s better battery and comfort justify the extra $20. What this means: the XM5 is the safer all-rounder, but the XM4 remains the value pick if ANC is your priority.

Is it worth upgrading from WF-1000XM4 to WF-1000XM5?

Key upgrades in XM5

  • Better call quality with new beamforming microphones
  • Longer battery life (9h32m vs 7h43m in SoundGuys testing)
  • Smaller, lighter design with improved comfort
  • Faster quick charging and Bluetooth 5.3

Sources: SoundGuys, Laptop Mag

Who should upgrade?

If you take frequent calls, need all-day battery, or find the XM4 uncomfortable, the XM5 is a meaningful step up. Laptop Mag highlights the improved quick charge as a daily convenience.

Who should stick with XM4?

If you’re happy with the XM4’s ANC and sound quality and haven’t experienced battery drain, the upgrade is not essential. The XM4 still delivers top-tier noise cancelling and LDAC.

Bottom line: Sony WF-1000XM4 owners who don’t need better call quality can wait. Users who rely on earbuds for calls or long listening sessions will find the XM5’s improvements tangible.

Common issues with Sony WF-1000XM4: battery drain and fixes

Battery drain problem explained

After a 2022 firmware update, some users reported rapid battery drain — one earbud dying much faster than the other. SoundGuys tested their unit and did not observe the issue, suggesting it may be unit-specific or related to certain firmware versions.

How to fix battery drain

  • Update to the latest firmware via the Sony Headphones Connect app
  • Perform a reset: hold both touch sensors for 20 seconds until the light flashes blue
  • Disable “Speak-to-Chat” and “Adaptive Sound Control” to save power
  • If drain persists, contact Sony support for possible replacement

Other known issues

Some users report occasional Bluetooth dropouts, especially in crowded areas. The IPX4 rating means the buds resist sweat but are not fully waterproof. Laptop Mag lists both models as having IPX4 protection.

The catch

The battery drain issue is real for some owners but not universal. Sony’s acknowledgment and firmware patches have helped, but the lack of official battery degradation data means buyers assume some risk — especially if buying used.

Sony WF-1000XM4: Key features and specifications

Noise cancelling performance

The WF-1000XM4 uses the V1 processor to deliver adaptive ANC that adjusts to your environment. SoundGuys measured sub-bass attenuation at 28 dB, nearly matching the XM5.

Sound quality

LDAC support allows high-resolution wireless audio. The 6mm driver with DSEE Extreme upscaling delivers a warm, detailed sound. Major HiFi describes the XM4’s presentation as “confident and nonchalant.”

Battery and charging

Rated at 8 hours with ANC on (24 hours with case), the actual test by SoundGuys showed 7h43m. The case supports Qi wireless charging. Quick charge gives 60 minutes from 5 minutes.

Water resistance and fit

IPX4 means protection from splashes and sweat — fine for workouts, but not submersion. The foam eartips help with passive isolation but can be bulky for small ears.

Full specifications
Driver 6mm
Frequency response 20Hz – 40kHz (LDAC)
Bluetooth 5.2
Codecs LDAC, AAC, SBC
ANC Adaptive with V1 chip
Battery (ANC on) 8 hours (tested 7h43m)
Battery (with case) 24 hours (ANC on)
Quick charge 5 min → 60 min
Water resistance IPX4
Weight 7.3g per bud
Case charging USB-C, Qi wireless

Upsides

  • Excellent adaptive ANC, nearly on par with XM5
  • LDAC support for high-res audio
  • Compact case with wireless charging
  • Strong value at current discounts

Downsides

  • Battery drain reports create uncertainty
  • Bulky foam tips not ideal for small ears
  • Call quality lags behind XM5
  • Bluetooth 5.2 without LE Audio

What’s clear and what’s not

Confirmed facts

  • The WF-1000XM4 has a 6mm driver, IPX4 rating, and LDAC support
  • Released in June 2021
  • Battery life rated 8 hours with ANC on, case provides 16 more hours
  • SoundGuys testing confirms 7h43m real-world battery with ANC

What’s unclear

  • Whether Sony will issue further firmware updates
  • Long-term battery degradation rates after 2+ years
  • Exact discontinuation timeline

Expert perspectives

The WF-1000XM4 has a confident, nonchalant way with music that makes the XM5 feel more analytical in comparison.

— Major HiFi (Major HiFi)

The WF-1000XM5 offers better noise cancellation than the XM4, with sub-bass attenuation up to 32 dB compared to 28 dB.

— SoundGuys (SoundGuys)

Why this matters

The XM4 still competes on ANC and sound quality. But the battery uncertainty means that for many buyers in 2025, spending $20 more on the XM5 is the safer bet — especially if you plan to keep the earbuds for more than a year.

The Sony WF-1000XM4 is a case study in how quickly flagship tech can feel like a gamble. Its ANC and LDAC remain best-in-class, but the battery drain controversy and the arrival of the refined XM5 have shifted the calculus. For owners in Ireland or the UK who are happy with battery life, there’s no rush to upgrade. For anyone buying new, the XM5’s extra reliability and better call quality make the small price jump worthwhile — or risk the XM4’s quirks for a slight discount.

Related reading: YouTube to MP4 Converter: Free, Safe Tools Compared (2025)

Frequently asked questions

Are Sony WF-1000XM4 good for phone calls?

They are acceptable but not great. The XM5 significantly improves call quality with better beamforming microphones.

Does WF-1000XM4 have wireless charging?

Yes, the charging case supports Qi wireless charging.

How to reset Sony WF-1000XM4?

Place earbuds in the case, open the lid, and hold both touch sensors for 20 seconds until the indicator blinks blue.

Is the WF-1000XM4 compatible with iPhone?

Yes, it works with iOS via AAC but does not support LDAC on iPhones.

What is the range of WF-1000XM4?

Bluetooth 5.2 gives about 10 meters (30 feet) line-of-sight range.

Can WF-1000XM4 connect to two devices?

No, it does not support multipoint Bluetooth. You must switch devices manually.