Real owners lean toward the Bose Ultra Open Earbuds: 64% of 148 owners recommend it, vs 31% of 26 for the Sennheiser MOMENTUM Sport.
Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score
“great buds! Great audioquality, great ANC and they never fall out; even without the fins”— Additional_Talk_5005 on Reddit
“I never had connection issues”— BoysenberryFuzzy7405 on Reddit
“The transparency mode is absolutely not working for me. I can't hear people talking in front of me clearly, and it boosts fan noises like crazy. Huge miss”— frenchman321 on Reddit
Real owners lean toward the Bose Ultra Open Earbuds: 64% of 148 owners recommend it, vs 31% of 26 for the Sennheiser MOMENTUM Sport.
Owners point the Bose Ultra Open Earbuds at runners and cyclists needing to hear their surroundings, and people who can't tolerate anything inside the ear canal.
Owners point the Sennheiser MOMENTUM Sport at runners and gym-goers who want secure-fit sport buds with strong sound quality, and cyclists who want effective wind-noise reduction on outdoor rides.
The most-cited downside of the Bose Ultra Open Earbuds is weak or no bass due to the open, sealless fit. For the Sennheiser MOMENTUM Sport, it's hardware reliability problems: buds that break, won't power on, won't charge within a week, or randomly restart and reconnect.