Sennheiser Momentum Sport
Polar-powered in-ear sensors track real-time heart rate and body temperature, while Sennheiser's sport sound profile with adaptive ANC and transparency mode keeps you focused during workouts. The IP55-rated secure fit with interchangeable ear fins and tips stays put through any intensity, and 24-hour total battery life (6 hours earbuds plus 18.5 hours case) with a 10-minute quick charge for 45 minutes of playtime eliminates downtime. Best for athletes and fitness enthusiasts who want integrated health metrics and immersive audio without switching devices.
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Snapshot
The 30-Second Version
The Sennheiser Momentum Sport is a fitness tracker disguised as earbuds. The Polar heart rate and body temperature sensors are the real selling point, and the ANC is best-in-class at the 98th percentile. But sound quality is a weak spot at the 21st percentile, which is rough for a Sennheiser. At $130 USD, buy these for the biometrics, not the audio.
Pros & Cons
Pros
- Best-in-class adaptive ANC (98th percentile) 98th
- Built-in Polar heart rate and body temperature tracking 97th
- Excellent build quality with IP55 sweat resistance 72nd
- 24-hour total battery life with quick charge
- Secure fit with interchangeable fins and tips
Cons
- Sound quality is a weak spot (21st percentile)
- Comfort ranks low at 31st percentile
- Mic quality is mediocre (45th percentile)
- Connectivity is just average
- No price advantage over better-sounding competitors
The proof
Performance
Let's talk about what these do well first. The adaptive ANC is genuinely best-in-class, sitting at the 98th percentile in our rankings. For a pair of earbuds designed to be worn while you're huffing through intervals or grinding out miles, that's a big deal. It means you can actually block out the gym's terrible playlist or the traffic noise on your route without cranking the volume to ear-damaging levels.
The fitness tracking is the other standout. Polar's sensors are legit, and having heart rate and body temperature data stream directly from your ear is more accurate than wrist-based optical sensors in many cases. The ear is a stable, warm, well-perfused spot, which makes it a surprisingly good place to measure this stuff. The IP55 rating means sweat and light rain won't kill them, and the build quality is excellent, 97th percentile. These feel like they'll survive being tossed in a gym bag.
But the sound is where things get rough. A 21st percentile ranking for sound quality is disappointing, full stop. Sennheiser's sport tuning seems to prioritize thumping bass over clarity and detail, which makes sense for motivation during a workout but falls flat when you're trying to enjoy a podcast or a more nuanced track. The mic is also mediocre at the 45th percentile, so don't expect to take many calls on these. And connectivity is dead average, which is fine but not exciting.
Specifications
Full Specifications
Design
| Form Factor | on-ear |
| Open/Closed | closed |
| Foldable | No |
Audio
| Codecs | Sennheiser Momentum Sport - Earbuds with Sport Sound Tuning and Adaptive ANC, Secure Fit, 24-Hour Battery Life, Fitness Tracker for Body, Graphite |
Noise Control
| ANC | Yes |
| ANC Type | adaptive |
| Transparency | Yes |
Connectivity
| Wireless | Yes |
Battery
| Battery Life | 24 |
| Charge Time | 0.167 |
| Fast Charging | 10 mins of charging for 45 mins of playtime |
Microphone
| Microphone | Yes |
Features
| Touch Controls | Yes |
| Water Resistance | IP55 |
vs Competition
The Sony ULT WEAR WHULT900N/B is the most direct competitor in terms of price and features. Sony's sound quality will be noticeably better, and their ANC is also excellent. But Sony doesn't offer any fitness tracking, so if that's your priority, Sennheiser wins by default. The Bose QuietComfort 884367-1100 is another strong option with better comfort and sound, but again, no biometrics.
The Technics EAH-A800 is a different beast entirely. It's more expensive and aimed at audiophiles who want premium sound in a wireless package. If sound quality is your top priority, that's where you should look. The JBL Tune 670NC and TOZO HT3 are budget options that will save you money but won't match the Sennheiser's ANC or build quality. The trade-off is clear: you're giving up audio performance for fitness features that no one else in this price range offers.
| Spec | Sennheiser Momentum Sport | Bowers & Wilkins Px8 S2 | Sony WH-1000XM6 | JBL Tune 670NC | TOZO HT3 | Soundcore Life Q20 |
|---|---|---|---|---|---|---|
| Form Factor | on-ear | over-ear | over-ear | on-ear | over-ear | over-ear |
| Driver Type | - | dynamic | dynamic | dynamic | dynamic | dynamic |
| Driver Size (mm) | - | 40 | 30 | 32 | 40 | 40 |
| Impedance Ohms | - | - | 48 | 32 | 16 | 16 |
| Wireless | true | true | true | true | true | true |
| Active Noise Cancellation | true | true | true | true | true | true |
| Open Closed Back | closed | closed | closed | closed | closed | closed |
| Bluetooth Version | - | 5.3 | 5.3 | 5.3 | 6.0 | 5.0 |
| Battery Life Hours | 24 | 30 | 30 | 70 | 90 | 60 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|
| Sennheiser Momentum Sport | 98.2 | 42.8 | 97.2 | 19.5 | 72.1 | 29.7 | 47.2 | 45.1 |
| Bowers & Wilkins Px8 S2 Compare | 98.2 | 99.3 | 94.3 | 99 | 76.5 | 51.9 | 97.7 | 95.1 |
| Sony WH-1000XM6 Compare | 98.2 | 89.4 | 90.8 | 90.9 | 76.5 | 80 | 99.9 | 83.6 |
| JBL Tune 670NC Compare | 98.2 | 64.1 | 75.6 | 84.8 | 94.3 | 87.2 | 99.2 | 98.6 |
| TOZO HT3 Compare | 89.8 | 82.7 | 94.3 | 98.6 | 97.8 | 51.9 | 96.8 | 95.1 |
| Soundcore Life Q20 Compare | 94.2 | 82.7 | 90.8 | 100 | 91.3 | 87.2 | 96 | 89.8 |
Price
Value & Pricing
At $130 USD, the Momentum Sport is priced right in the middle of the pack. You're not paying a premium for the Sennheiser name here, which is refreshing. But you're also not getting a bargain. The question is whether the fitness tracking justifies the price when the sound quality is this underwhelming.
For comparison, the Sony ULT WEAR and Bose QuietComfort both sit in a similar price range and will absolutely crush these on sound quality. What they won't do is track your heart rate. So the value proposition is really about that Polar integration. If you're a runner or cyclist who wants to ditch the chest strap and doesn't want a smartwatch, $130 for accurate in-ear heart rate monitoring plus decent ANC is actually pretty reasonable. If you don't care about the fitness stuff, you're paying for features you won't use while getting worse audio than you'd get elsewhere.
Read more
Overview
Sennheiser's Momentum Sport earbuds are a weird and interesting beast. They're not just another pair of workout buds. They've got a full fitness tracker baked in, courtesy of Polar, measuring heart rate and body temperature right from your ear. That's the headline feature, and it's either going to be the reason you buy these or the reason you wonder why they didn't just focus on sound.
At $130 USD, these sit in a crowded market. You've got Sony, Bose, JBL, and Technics all fighting for your ear space. But none of them are doing what Sennheiser is attempting here. The Momentum Sport is for the person who wants one device to handle their run tracking and their playlist, without strapping a watch to their wrist or a chest strap to their ribs.
The catch? Our database shows the sound quality is a weak spot, landing in the 21st percentile. That's a tough pill to swallow from a company with Sennheiser's audio pedigree. But the ANC is top of the charts at the 98th percentile, and the build quality is right up there too. So you're getting a fitness gadget first, and an audio device second. Whether that trade-off works for you depends entirely on what you're buying earbuds for.
Common Questions
Q: How accurate is the heart rate tracking compared to a chest strap?
The Polar sensors in the Momentum Sport measure from the ear, which is generally more accurate than wrist-based optical sensors because the ear has less movement artifact and better blood flow. While we don't have direct comparison data against chest straps, the technology is solid, and Polar has a strong reputation in the fitness tracking space. For most workouts, you should get reliable data, though chest straps remain the gold standard for high-intensity interval training.
Q: Can I use these for phone calls?
The mic quality ranks at the 45th percentile, which is about average. You can take calls, but don't expect crystal-clear voice quality in noisy environments. The ANC will help you hear the other person, but your voice might sound a bit muffled or compressed to them. For occasional calls, they're fine. For daily conference calls, you'd be better off with a dedicated headset or earbuds with stronger mic performance.
Q: How long do the batteries actually last?
You get 6 hours from the earbuds themselves and another 18.5 hours from the charging case, for 24 hours total. The quick charge feature gives you 45 minutes of playtime from just 10 minutes of charging, which is handy if you forget to charge before a workout. Battery life ranks at the 73rd percentile, so it's solid but not class-leading. Heavy ANC use will drain them faster.
Q: Are these comfortable for long listening sessions?
Comfort is actually one of the weaker areas, ranking at the 31st percentile. The secure fit with interchangeable fins and tips is great for keeping them in place during workouts, but that snug fit can become uncomfortable over extended periods. If you're planning to wear these all day at a desk, you might find them fatiguing. They're really designed for workout sessions, not marathon listening.
Who Should Skip This
If you don't care about fitness tracking, skip these. The sound quality at the 21st percentile is genuinely disappointing for a Sennheiser product, and you can get much better audio from the Sony ULT WEAR or Bose QuietComfort at a similar price. The comfort ranking also suggests these aren't great for long listening sessions, so if you want earbuds for commuting or office use, look elsewhere.
Audiophiles should also steer clear. Sennheiser's sport tuning emphasizes bass over clarity, and the overall sound signature won't satisfy anyone who cares about detail and accuracy. The Technics EAH-A800 is a much better choice if sound quality is your priority. And if you're on a tight budget, the JBL Tune 670NC or TOZO HT3 will save you money while delivering acceptable audio, even if they can't match the Sennheiser's ANC or build quality.
Verdict
If you're a serious athlete who wants accurate heart rate tracking without wearing a chest strap or smartwatch, the Momentum Sport is a genuinely compelling option. The Polar integration is the real deal, and the ANC is good enough to make these your daily workout companion. The build quality means they'll survive your sweatiest sessions, and the battery life is solid enough to get you through a week of workouts.
But if you're just looking for good wireless earbuds and the fitness stuff is a nice-to-have, look elsewhere. The sound quality is genuinely disappointing for a Sennheiser product, and the comfort ranking suggests these might not feel great for long listening sessions. You'd be better off with the Sony ULT WEAR or Bose QuietComfort and a cheap chest strap if you really need heart rate data.
