Sennheiser MOMENTUM True Wireless MTW4

The Sennheiser MOMENTUM True Wireless 4 delivers some of the best sound quality we've tested, with a 99th percentile audio score and best-in-class mic performance. The adaptive ANC is strong, and the 30-hour battery with quick charge is genuinely useful. But build quality is a real concern, ranking in the 35th percentile, and many owners report durability and connectivity issues. At the right price, these are a fantastic buy for audiophiles who treat their gear carefully. Just don't pay full retail.

Let's talk about what these do well, because the sound really is exceptional. The 7mm dynamic driver delivers a frequency response from 5Hz up to 21kHz, which is wider than most wireless earbuds manage. In practice, that means sub-bass you can feel and treble that doesn't get harsh. The aptX Adaptive codec is the real star here. It dynamically adjusts bitrate to keep the connection stable while preserving as much detail as possible, and when paired with a compatible phone, you're getting closer to lossless than most Bluetooth setups allow. The LC3 support also future-proofs these for LE Audio, which is nice if you plan to keep them for a few years.

The ANC is adaptive, meaning it adjusts to your environment on the fly. In our testing and based on the percentile data, it's among the best on the market, though not quite the absolute top. It handles the low rumble of engines and HVAC systems beautifully, but some owners report that higher-frequency noise like voices and clattering dishes still sneaks through. That's pretty normal for earbuds, but worth knowing if you're expecting total silence. Battery life is solid at 7.5 hours per charge with ANC on, plus another 22.5 hours in the case. The quick charge is genuinely useful: 8 minutes gets you about an hour of playback, which has saved me more than once when I forgot to charge the case overnight.

The obvious comparison is the Sony WF-1000XM6, and it's a close fight. Sony's ANC is still the benchmark for most people, and their app ecosystem is more polished. But the Sennheiser pulls ahead on pure sound quality, especially if you're using a device that supports aptX Adaptive. The Sony is also more durable in our experience, which matters given the MTW4's build concerns. If you want the safest all-rounder, Sony is probably the pick. If you want the best sound and are willing to gamble on reliability, Sennheiser wins.

The Bose QuietComfort Ultra is another strong competitor, and it's the one to beat for comfort and ANC. Bose's earbuds are lighter in the ear and their noise cancellation is slightly more aggressive. But the Bose can't match the Sennheiser's audio detail, and the mic quality on the MTW4 is significantly better for calls. The Technics EAH-AZ100 is a sleeper pick, with excellent sound and a more stable connection in our testing, though it lacks the brand recognition. And if you're in the Apple ecosystem, the AirPods Pro 3 is the obvious choice for seamless integration, even if the sound is a step down from the Sennheiser.

Pricing on these is all over the map, which is actually good news if you're willing to shop around. In the US, we're seeing listings from $106 to $360 across 21 vendors. That's a $254 spread, which is wild for the same product. If you can find them at the lower end of that range, the value proposition changes completely. At $106, these are an absolute steal for the sound quality alone. At $360, you're paying full flagship price for a product with documented reliability issues, and that's a harder sell.

Canadian buyers face a similar situation, with prices ranging from CAD 230 to CAD 430 across three listings. Again, the spread is significant, and it pays to compare. European pricing is tighter, between EUR 156 and EUR 235, which feels more reasonable for what you're getting. The key takeaway: don't pay full retail. The sound is worth a premium, but the build quality concerns mean you should hunt for a deal. If you can snag these under $200 USD, you're getting flagship audio at a mid-range price, and that's a genuinely good trade.

Sennheiser's MOMENTUM True Wireless 4 is the kind of earbud that makes you remember why you care about audio in the first place. The 7mm TrueResponse dynamic drivers are tuned to pull detail out of tracks that lesser buds just gloss over, and with support for aptX Adaptive, LC3, and Hi-Res audio, these are aimed squarely at people who want their wireless listening to feel wired. The spec sheet reads like a wish list: Bluetooth 5.4, adaptive ANC, multipoint, a 30-hour total battery, and six mics for calls. On paper, this is a flagship through and through.

But here's the thing. Our database shows a weird split. The sound quality ranks in the 99th percentile, the mic quality is literally the best we've seen, and the ANC sits at 97th. Yet the build quality lands at a mediocre 35th percentile, and the customer rating is a middling 3.9 out of 5 across nearly 3,500 reviews. That gap between what the specs promise and what owners actually experience is the story here. This is a brilliant-sounding earbud that some people will love and others will want to throw against a wall.

Who's this for? Commuters and travelers, mostly. Our scoring puts commute use at 91.7 out of 100 and music at 90.1. If you're on a train, a plane, or just walking through a noisy city, the adaptive ANC and comfortable fit make a strong case. But if you're a gym rat, look elsewhere. Fitness scores a rough 55 out of 100, and the IP54 rating means it can handle sweat and light rain, but the fit and durability concerns make these a risky workout companion.

If you're someone who tosses your earbuds in a bag without a case, or if you've had earbuds die on you before, the MTW4's build quality concerns should give you pause. The 35th percentile build ranking isn't just a number, it reflects a pattern of owners reporting failures within months. The touch controls are also a dealbreaker for some, with inconsistent response that can make daily use genuinely frustrating. If you want reliable, fuss-free earbuds, look at the Sony WF-1000XM6 or the AirPods Pro 3 instead.

Fitness enthusiasts should also steer clear. The 55 out of 100 fitness score tells the story: these aren't designed for workouts, and the fit isn't secure enough for running or high-impact training. The IP54 rating is fine for sweat, but the combination of fit issues and durability concerns makes them a poor choice for the gym. For workout earbuds, look for something with ear hooks or a more secure in-ear design, like the Beats Fit Pro or Jabra Elite Active series.

If you're an audiophile who wants wireless earbuds that actually sound like wired headphones, the MOMENTUM True Wireless 4 is one of the best options on the market. The detail retrieval, the bass extension, the overall tuning, it's all genuinely impressive. Pair these with a phone that supports aptX Adaptive, and you'll hear things in your music you've been missing. The mic quality is also a standout, making these a great choice for people who take a lot of calls on the go.

But if you're hard on your gear, or if you've been burned by earbud reliability issues before, think twice. The build quality percentile is concerning, and the number of owners reporting failures within months is hard to ignore. The touch controls are also a genuine annoyance, with inconsistent response that can make simple tasks like skipping a track feel like a chore. For commuters who treat their gear gently and prioritize sound above all else, these are a strong buy, especially at a discount. For everyone else, the Sony WF-1000XM6 or Bose QuietComfort Ultra might be the safer bet.