Samsung Galaxy Buds4 Pro / Samsung Galaxy Buds3 FE (SM-R420)

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.

ANC uses microphones to detect outside sound and plays inverted sound to reduce steady noise such as engines and hum. Ambient sound lets you hear your surroundings without removing the earbuds. Adaptive ANC that adjusts to the environment is not listed for this model.

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.

Samsung notes some features may be unavailable on non-Samsung devices. Equaliser, ANC settings and AI features are managed in the Galaxy Wearable app or One UI settings.

Silicone tips seal the ear canal, blocking outside sound passively and helping bass sound fuller; if the tip does not seal, noise cancelling and bass both weaken.

SSC is Samsung’s own codec for higher-quality audio with Galaxy devices; other phones use AAC or SBC. Auto Switch moves the connection automatically between Galaxy devices on the same account.

Samsung’s times come from internal tests with pre-production units and default settings; rated capacity is 50 mAh per earbud and 500 mAh for the case. Real runtime depends on volume, codec and battery age.

IP54 means limited dust protection and resistance to splashing water from any direction; it is not suitable for submersion. The charging case is not protected.