Which has better noise cancellation?

The MOMENTUM 5. It uses 8 adaptive mics and Sennheiser claims up to 3x stronger cancellation in voice-range frequencies than the MOMENTUM 4. The OnTrac has active ANC but no comparable claim.

Which lasts longer on a charge?

The MOMENTUM 5, at up to 57 hours with ANC on versus 55 hours for the OnTrac. The OnTrac charges fast: 30 minutes gives about 9 hours.

Can I connect to two devices at once?

Only on the MOMENTUM 5, which supports multipoint. The OnTrac has no multipoint, so you switch devices manually.

Is the MOMENTUM 5 worth the extra money?

The MOMENTUM 5 was $399.95 at its lowest daily price on November 2, 2026. No current OnTrac price was given, so check live prices; if they are close, the MOMENTUM 5's ANC, codecs and replaceable battery justify it.

Which is better for calls?

The MOMENTUM 5. It has beamforming mics, Own Voice Detection and call externalization. The OnTrac lists no call-specific features.

Do either resist water or sweat?

No. The OnTrac is explicitly not water resistant, and the MOMENTUM 5 has no water-resistance rating. Neither is a good pick for heavy workouts in rain.

Sennheiser MOMENTUM 5 Wireless vs Dyson OnTrac Headphones

The Sennheiser MOMENTUM 5 is the better buy for most people deciding between these two. It has stronger adaptive ANC, more modern Bluetooth with aptX Lossless and multipoint, a replaceable battery, and a longer 57-hour rating. The Dyson OnTrac is the pick only if you want its distinctive look and bass-forward tuning and can live without multipoint. On price, the MOMENTUM 5 was $399.95 at the lowest daily price recorded on November 2, 2026; no current price was given for the OnTrac, so compare live store prices before buying.

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