Product Comparison: Bose SoundTrue Ultra vs Sennheiser Momentum

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General Specifications
SoundTrue Ultra
Momentum (506231)
About the Product
SoundTrue Ultra in-ear headphones deliver deep, rich sound across a wide frequency range. And the sealed acoustic design comfortably immerses you in your music. The proprietary StayHear Ultra tips, available in three sizes, stay soft while giving you a secure fit. Easily switch between calls and music with your iPhone.
Momentum In-Ear brings elegant styling and premium performance together. An ergonomic design crafted with precision using premium materials, they exude quality while delivering exceptional sound quality. The sonic signature is pure Sennheiser Momentum – balanced, with powerful bass, smooth mid-range and extended highs.
Size & Weight
0.9 in.
4.6 in.
1 in.
1.8 in.
4.8 in.
6.9 in.
0.64 oz.
6.4 oz.
What customers say about "Size & Weight"
Bose SoundTrue Ultra in-ear headphones
  • These fit very comfortably (probably the most comfortable noise isolating headphones on the market)
  • One last note: the silicone earpiece fits into the ear canal, eliminating a good deal of ambient environmental noise.
  • The silicone molds come in three sizes to adjust to your ear. For me, I use a small size. It's a perfect fit I can wear for hours without worry. The volume up and down buttons work on my Google Pixel 1st Gen, the carrying case is clever, and overall I just love these.
  • I am so disappointed with these Bose earbuds. This is my third set in two years. I use mine about 12 - 14 hours per day so need earbuds that don't hurt my ears which Bose certainly fits the bill.
  • Fit very deep into ear so not very comfortable, blocks out most background noise so not good for urban living
Sennheiser Momentum (506231) In Ear (iOS version)
  • The proper weight, good noise isolation, quality sound and no noise from your mic on the go.
  • Light weight and crisp mids, they feel really solid too. The only thing these ear buds severely lack is bass.
  • These are incredibly light. Some might think that means cheap, but really it just means your ears won't be weighed down by them for long listening sessions.
  • Earpieces were very light weight, and I also found a slit port opening at the top which I'm sure contributed to a wide airy soundstage.
  • The headphone pieces (not the silicon tips) are heavy and jut out of your ear quite a bit, causing a slight, but noticeable downward pull when in your ears
Headphone Fit
Built-In Microphone
Volume, Play/Pause
Volume, Play/Pause
Sound Isolating
Water Resistant
Secure and comfortable, Lightweight, durable case, Inline mic/remote, Lose yourself in your music, 3 pairs StayHear Ultra tips
Distinctive Styling, Ergonomically Engineered, Elliptical Cable, Dynamic Transducer
Cord Length
5.12 feet
What customers say about "Features"
Bose SoundTrue Ultra in-ear headphones
  • The vocals and sound is amazing on these headphones, exceeding my expectations.
  • Sound quality is amazing. Great fit. Love the Bose headphones. My whole family each has a pair or two (although different types).
  • Good sound isolation. Muffles outside sound, not active sound cancellation.
  • I ended up exchanging these for the sport version. The sound quality is fantastic, but the sound of the wire bumping or brushing up against your clothes is intolerable. The sport version is much better.
  • The sound is not the best. don't have rich sounds neither deep bass. my previous Bose IE2 headset sounds superior to this model.
  • Worst audio quality. Sound like cheap $10 headphones and cheap plastic too. Get the older generation they are perfect.
Sennheiser Momentum (506231) In Ear (iOS version)
  • I'm not a base head so this is some of the best quality sound I've experienced. It's super clear and crisp.
  • Sound quality is excellent, particularly at the mid and low frequencies. Very comfortable after several hours of use.
  • Works well with my iPhone 6plus. Easy to adjust volume and change tracks while on the go.
  • The earphone case was nice. They look good. They're smaller in person than they appear in the pictures. The volume buttons work.
  • Biggest gripe was the 90 degree phone jack - very poorly designed. I don't see enough reinforced cabling for earbuds so it needs to be a thing - especially for such a big brand like Sennheiser.
  • Higher frequencies can be very harsh depending on the playback device. On an iPhone I counter this by setting the equalizer to reduce treble, which results in absolutely incredible sound, but this shouldn't be necessary.
Warranty / Certifications
Manufacturer Warranty
2 year(s)
Other Information
99.95 $

Price History

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