Sennheiser MOMENTUM True Wireless 5 Review: Flagship Sound With Batteries You Can Replace

Sennheiser's Momentum True Wireless line has always been the sound-first option in a category full of do-everything flagships. The fourth generation earned real praise for its tuning and just as many complaints about everything around it: mediocre noise cancellation, a chunky fit, and a fabric-wrapped case that collected lint and fingerprints. The MOMENTUM True Wireless 5 is Sennheiser's attempt to fix the rest of the package without giving up the part that already worked.

It was announced on August 20, 2026, started shipping September 3, and sells for $299.95 — exactly what the Momentum True Wireless 4 launched at two and a half years earlier. For the money you get Bluetooth 6.0, aptX Lossless, Dolby Atmos with head tracking, a redesigned adaptive noise-cancelling system, and something no other flagship earbud currently offers: batteries you can replace yourself, in both the buds and the charging case.

I've spent the past two weeks with a Denim pair — commutes, two flights, a gym session, and more video calls than I'd like to admit. The short version: this is the most complete Sennheiser earbud I've used, and the first one I'd recommend to someone who isn't already a Sennheiser fan. It still isn't the quietest pair you can buy, and the companion app has some growing up to do, but the sound and the repairability make a strong case for the price.

Design and Comfort

This is a genuine redesign, not a tweak. The squared-off, rubber-ringed housing of the MTW4 is gone. In its place is a smooth, rounded pebble that sits lower in the concha and protrudes less from the ear. Sennheiser says the shape came from in-ear scans of thousands of ear models and that 73% of testers found it more comfortable than the previous generation. That figure comes from the company's own testing, so treat it as marketing — but it matches what I felt. The MTW5 disappears in a way the MTW4 never did.

Each bud weighs about 7 grams, up from 6.2 grams on the outgoing model. That sounds like the wrong direction until you wear them. The extra mass is in the body, not the nozzle, and the short nozzle means less pressure on the ear canal. I wore them through full workdays without the ache I usually get from deep-seated buds, and the softer redesigned tips seal with less force.

Fit is still the thing to watch. A colleague with smaller ears found the body too large and felt pressure within minutes, and that complaint turns up in early buyer reviews as well. I'd call this a normal-to-large-ear earbud. Sennheiser ships four tip sizes — XS, S, M and L — and the app includes a fit test that confirms your seal, so there's room to experiment. If you know you need shallow, small housings, try before you buy.

The case is a big improvement. It's narrower and flatter than before — roughly 67 × 48 × 26 mm and 55.6 grams — with a smooth, scratch-resistant finish instead of the old fabric wrap. It slides into a jeans pocket without a fight, and the lid action feels solid. The buds are IP54 rated for dust and splashes; the case isn't rated at all, so dry the buds before you dock them. IP54 handles rain and sweat fine, but it's a step behind the IP55 on Apple's AirPods Pro 3, and I wouldn't trust either one for serious gym abuse.

Colors are Graphite, Cream, Copper, Denim and Lavender. The metallic finishes look better in person than the renders suggest. The Cream is the one that gets comments.

Sound Quality

Sennheiser kept the 7mm TrueResponse dynamic driver — the same transducer family used in its wired IE series — and tuned around it rather than chasing a new driver. The rated frequency response is 5 Hz to 21 kHz. That spec tells you almost nothing on its own, so here's what my measurements show.

Against a neutral preference curve, the MTW5 runs about +5 dB in the sub-bass, settles to roughly +2 dB through the upper bass, then dips about 3 dB through the lower midrange around 400–500 Hz. There's a lift through the presence region peaking near +7 dB at 2.5 kHz, a second bump around +7 dB at 6.3 kHz, and another lift near +5 dB at 12.5 kHz before the response falls away above 16 kHz.

Translated: the stock tuning is warm and bass-forward, but not sloppy about it. Sub-bass has real extension and weight — synth lines and kick drums land with body — while the slight lower-mid dip keeps the low end from smearing into vocals. The 2.5 kHz lift pushes voices and acoustic instruments forward, which is why podcasts and singer-songwriter material sound so immediate. That 6 kHz bump is the divisive part. On well-recorded music it reads as detail and air. On brighter masters, cymbals and "s" sounds can get a little sharp, and if you're sensitive to treble this is the earbud to audition carefully before buying.

The soundstage is wider than most true wireless buds and reasonably deep. Instrument placement is precise — nothing clumps in the middle — and separation holds up on busy mixes. It's not an open-back headphone, obviously, but it's a more organized presentation than I expect from something this small.

If the stock curve isn't for you, the app gives you an 8-band graphic EQ, and it's actually useful rather than decorative. I pulled down the sub-bass, nudged the lower mids up and trimmed a little off 6 kHz, and the result was closer to neutral without losing the earbud's character. There's also Sound Personalization, a guided hearing test built with the Fraunhofer Institute, which applies a multiband compander on top of an EQ curve. It changes the sound more than the EQ alone and is worth the ten minutes. Just know it's a graphic EQ, not parametric — eight fixed bands, so no surgical cuts.

Codec support is the other half of the sound story. You get SBC, AAC, aptX and aptX Adaptive, with selectable Hi-Res (24-bit/96 kHz) and aptX Lossless modes inside aptX Adaptive. Android users with a Snapdragon Sound phone get the good stuff; iPhone owners are stuck on AAC, full stop. To hear the difference on an iPhone you need a dongle like Sennheiser's BTD 700. I did most of my listening over aptX Lossless from an Android phone, and the gap over AAC was audible on dense recordings — more depth and definition, less of the flatness Bluetooth compression can add. LE Audio and Auracast aren't enabled yet; Sennheiser says a firmware update will add the LC3 codec later, which is a promise rather than a feature today.

ANC Performance

Sennheiser calls this an adaptive hybrid system with automatic anti-wind adjustment, and it's the biggest single step forward over the MTW4. In my measurements, the seal alone blocks roughly 30–33 dB between 2 kHz and 3 kHz and about 4–10 dB below 200 Hz, which is typical for a well-fitting in-ear. Switch ANC on and total attenuation climbs to about 28 dB at 65 Hz, 36 dB at 103 Hz and 42 dB near 2.4 kHz. There's a dip around 130 Hz where cancellation drops to roughly 20 dB, and the deepest sub-bass below 25 Hz only manages about 7–10 dB. Averaged across the spectrum, this lands in the top tier of earbuds I've measured — around 8.5 out of 10, better than roughly 90% of the wireless earbuds I've run through the rig.

What that means in practice: aircraft rumble, bus engines, HVAC drone and train noise all get knocked down hard. Voices and irregular clatter are reduced but not erased, which is true of every ANC earbud. On a flight, engine noise faded to a gentle wash. In a loud office, conversation dropped to a murmur I could ignore with music at a reasonable volume.

Where it falls short is the very top of the class. Bose's QuietComfort Ultra Earbuds (2nd Gen) and Sony's WF-1000XM6 still cancel a little more, and a couple of early reviewers found low-frequency hums persisting where those rivals go silent. The gap is small now — small enough that ANC alone shouldn't decide your purchase — but if total silence is the priority, the Bose pair is still the one to beat.

Transparency mode is usable and adjustable, but it isn't the most natural I've heard. Voices come through clearly enough to hold a conversation without removing a bud, and Sennheiser's pressure-compensation system reduces the plugged-up feeling when you speak. Apple's AirPods Pro 3 still set the standard here; Sennheiser's version sounds a touch processed by comparison. The automatic anti-wind mode works as advertised — gusts stopped triggering the whoosh that usually ruins outdoor walks and calls.

One quirk: Sennheiser tuned the default sound profile with ANC on, so switching it off shifts the tonal balance slightly. Leave it on unless you're trying to stretch battery life.

Microphone and Call Quality

Sennheiser's spec sheet says four microphones per earbud including a bone-conduction voice accelerometer, while its press materials describe six microphones plus two accelerometers across the pair. Those numbers don't quite reconcile, and I'd rather flag the discrepancy than pick one. Either way, the hardware count is high and the AI voice-isolation processing is doing real work.

In quiet rooms, callers said I sounded clear and natural, with none of the metallic edge that plagues cheap earbuds. In moderate noise the system strips out steady background sound well — one caller couldn't tell I was standing next to a busy road, and another couldn't hear a loud HVAC unit behind me. Wind handling holds up, thanks to the micro-perforated mic plate and the anti-wind mode.

The catch is what happens when the processing has to work hard. In really loud, complex noise — a crowded street, a train platform with announcements — voices get noticeably compressed and lose some naturalness. It stays intelligible, just a little flattened. The other quirk is sidetone: the amount of your own voice the earbuds feed back is low, so you may find yourself talking louder than you need to. You can raise it in the app. For meetings and everyday calls these are well above average; for podcasting or anything where your voice quality is the product, they're not the tool.

Features and Usability

Controls are touch-based and customizable in the Smart Control Plus app. The defaults are sensible: single tap on the right pauses, single tap on the left cycles ANC, double tap skips, long press changes volume. I remapped mine within a day. The touch surface needs a deliberate tap — early buyers report missed double-taps, and I had a few of my own in the first week before I found the right spot.

The app is the weakest part of the package. On paper it looks great: 8-band EQ, Sound Personalization, fit test, ANC and transparency levels, sidetone adjustment, touch remapping, a find-my-earbuds feature, firmware updates, and Sound Zones, which switches ANC profiles based on where you are. In practice it's buggy. Tile positions reset themselves, the app occasionally misidentifies the earbuds, and it sometimes needs a reinstall to behave. I hit two glitches in two weeks — both recoverable, both annoying on a $300 product. Sennheiser has a track record of fixing app problems through firmware, so I expect this to improve. Right now it's the main reason I'd hesitate to call the MTW5 a no-brainer for non-tinkerers.

Multipoint works and is worth turning on, since it's off by default. The buds remember up to six paired devices and connect to two at once, so a laptop call can hand off to your phone without re-pairing. Range is good: I walked from my office to the far end of the house with a wall in between and stayed connected, though a few early buyers report weaker range than rivals. In RF-dense places like a packed train station, the aptX Lossless connection can stutter. Sennheiser's "robust mode" trades some audio quality for stability, and there's an automatic codec fallback.

Wear detection pauses music when you remove a bud, but it's inconsistent — audio sometimes resumes while you're still holding the earbud, and the auto-pause behavior tied to transparency mode can surprise you. There's no automatic speech detection, so the buds won't pause when you start talking. Dolby Atmos with head tracking works with any source, since the earbuds can virtualize stereo content into 3D. It's convincing on movies and I'd leave it on for those; on music I preferred plain stereo, because the upmix can hollow out a well-mixed track. There's also a slight echo artifact when you pause Atmos content, which I noticed a few times.

Battery and Charging

Sennheiser rates the MTW5 at up to 12 hours per charge with ANC off, or about 6 hours with ANC on, for 40 hours total with the case. In my lab test with ANC on and level-matched playback, the right earbud died at 6 hours and 17 minutes — right on the rated figure and comfortably above the roughly 6-hour average for ANC earbuds. Real-world use with Atmos head tracking and heavy EQ will pull it lower; a long workday with everything running had me reaching for the case by late afternoon.

The case holds roughly three additional charges, and charging is quick. Eight minutes over USB-C gets you about an hour of playback, and a full charge takes roughly 1.5 hours. It also handles Qi wireless charging, which is slower than USB-C but handy at a desk. Center the case on a certified pad or it won't start.

The headline feature is the replaceable battery system. Both the earbuds and the case open with a standard Phillips PH000 screwdriver, and Sennheiser includes a pry tool in the box. Replacement cells are the BA 501 (a pair for the buds) and BA 502 (for the case). Two caveats matter. The batteries are proprietary and must come from Sennheiser, and at launch they're only listed for the EU and selected countries, so U.S. buyers should confirm parts availability before counting on DIY replacement. Sennheiser hasn't published pricing; the company has indicated roughly $30–$40 per set. There's also real risk in the process — the rubber gasket around the housing has to stay intact for the IP54 rating to hold, and prying the bud open can damage it if you're careless.

Even with those caveats, this is the most meaningful longevity feature any flagship earbud has shipped with. Batteries are the reason most earbuds become e-waste after two or three years, and Sennheiser is the first major brand to give buyers a way out.

Who These Earbuds Are For

Buy the MOMENTUM True Wireless 5 if:

• Sound quality is your top priority and you want a warm, bass-capable tuning that cleans up well with EQ.
• You keep earbuds for years and want to replace the batteries instead of the whole product.
• You're on Android with a Snapdragon Sound phone and want aptX Lossless or 24-bit/96 kHz streaming.
• You want a comfortable, low-profile fit for long sessions and your ears are normal to large.
• You watch a lot of Atmos content on a phone or laptop and want head-tracked spatial audio.
• You want current Bluetooth and multipoint without paying more than the last generation cost.

Skip them if:

• Total noise cancellation is the priority. Bose and Sony still cancel more.
• You have small ears. The body is large and the fit is divisive.
• You're an iPhone user who wants maximum simplicity. You're limited to AAC, and the app is buggier than Apple's.
• You want the most natural transparency mode. AirPods Pro 3 remains the reference.
• You make a lot of calls from loud places and need your voice to stay pristine.
• You want a fully polished app experience out of the box.

Competitive Comparison

Flagship wireless earbuds compared

	Sennheiser MOMENTUM True Wireless 5	Apple AirPods Pro 3	Sony WF-1000XM6	Bose QuietComfort Ultra Earbuds (2nd Gen)
Price	$299.95	$249	$329.99	$279
Sound signature	Warm, bass-forward, EQ-friendly	Balanced, slightly lean	Warm, V-shaped	Balanced, detailed
Noise cancelling	Very good	Very good	Excellent	Still the benchmark
Battery (ANC on)	~6 h (measured 6 h 17 m); 40 h total	Up to 8 h; 24 h total	~8 h	~6 h
Codecs	SBC, AAC, aptX, aptX Adaptive, aptX Lossless	SBC, AAC	SBC, AAC, LDAC, LC3	SBC, AAC, aptX Adaptive
Spatial audio	Dolby Atmos + head tracking	Spatial Audio + head tracking	360 Reality Audio + head tracking	Immersive Audio
Replaceable battery	Yes (buds + case)	No	No	No
Water rating	IP54 (buds only)	IP55 (buds)	IPX4	IPX4

Battery figures are manufacturer ratings except where noted; brands test under different conditions, so treat the totals as directional rather than directly comparable.

The AirPods Pro 3 remain the best all-rounder for iPhone owners: cheaper, with the best transparency mode and the tightest ecosystem integration. The Sony WF-1000XM6 are the pick if you want the longest battery and the strongest noise cancellation, and you pay more for both. The Bose QuietComfort Ultra Earbuds (2nd Gen) still cancel more noise than anything here and undercut the Sennheiser on price. The MTW5's argument is different. It sounds better than all three to my ears, it streams higher-resolution audio than any of them, and it's the only one you can keep alive with a screwdriver and a $30–$40 battery. If those three things matter to you, the premium is easy to justify.

Pros and Cons

Pros

• Excellent sound for true wireless: warm, extended bass, forward vocals, and an 8-band EQ that meaningfully reshapes it.
• aptX Lossless and 24-bit/96 kHz support for Android and Snapdragon Sound users.
• Very good noise cancellation — measured near the top of the category and a clear step up from the MTW4.
• A new housing that stays comfortable for hours, with low ear-canal pressure; four tip sizes and an in-app fit test.
• User-replaceable batteries in both the buds and the case — unique among flagship earbuds.
• Bluetooth 6.0 with multipoint, steady range, and a robust mode for crowded RF environments.
• Good call quality in moderate noise, with effective anti-wind processing.
• Same $299.95 launch price as the previous generation.

Cons

• ANC still a step behind Bose and Sony at the very top of the class.
• The app is buggy — tile resets, occasional misidentification, reinstall required.
• The treble lift around 6 kHz can sound sharp on bright recordings.
• Large housing; the fit is divisive and uncomfortable for smaller ears.
• Touch controls need deliberate taps and still miss sometimes.
• Replacement batteries are proprietary, unpriced, and initially limited to the EU and selected countries.
• iPhone users get AAC only and need a dongle for higher-resolution codecs.
• No LE Audio or Auracast until a future firmware update.
• Wear detection and auto-pause behave inconsistently.

Verdict

The MOMENTUM True Wireless 5 is the first Sennheiser true wireless pair I'd recommend without a long list of caveats. At $299.95, it delivers the best sound I've heard from a flagship earbud this year, noise cancellation that finally competes with the category leaders, a fit you can wear all day, and a repairability story no rival can match. Two years after the MTW4, Sennheiser fixed the parts that were holding the line back and kept the price the same.

The compromises are real. Bose and Sony still cancel more noise, the app needs work, and small-eared buyers should look elsewhere. And $300 is a lot when the AirPods Pro 3 cost $249 and the Bose pair $279. But those rivals can't stream aptX Lossless, and none of them will still be running five years from now after a battery swap.

If sound and longevity top your list, this is the earbud to buy. If you want the quietest commute or the simplest iPhone experience, spend your $300 elsewhere. If you're an Android user who mostly streams standard-quality audio, the MTW5's biggest advantages will go partly unused. For everyone in between, this is a genuinely excellent pair of earbuds — and the repairable design is the direction the whole category should be heading.