Samsung Galaxy Buds4 Pro / Sennheiser MOMENTUM 4 Wireless

Separate drivers for bass and treble aim for better separation than a single driver covering both.

Voice Detect lowers the music and lets in ambient sound when you start talking.

Auto Switch moves the connection between Galaxy devices on the same Samsung account; Auracast lets several headsets join one broadcast.

Head gestures let you accept or reject a call by nodding or shaking your head.

IP57 limits dust ingress and survives brief immersion; the case is not stated to have the same rating.

Because there is no iPhone app, features such as EQ and ANC settings are not available on iOS.

The ear pads fully surround the ear; Sennheiser cites a lightweight design, padded headband and deep cushioned earpads for long-wear comfort.

The frequency range describes measurement limits; the sound you hear is also shaped by the in-app equaliser and sound personalisation.

Hybrid ANC uses both outer and inner microphones; adaptive mode changes the level of cancellation to match ambient noise.

aptX Adaptive works only with Android phones that support it; iPhones use AAC. Multipoint connections are managed in the app.

Sennheiser says the 60 hours was measured with an iPhone at medium volume; higher volume and aptX Adaptive can shorten it.

When listening over USB-C, the headphones decode digital audio internally; the analogue cable works even with a flat battery.

Smart Pause stops playback when the headphones are taken off and resumes when they are put back on; Auto On/Off shuts them down to save power when not in use.

With no certification against sweat or rain, care is needed when it gets wet during exercise.