Both models feature noise cancellation, helping reduce background noise for a more immersive listening experience. Sennheiser Momentum In-Ear and Sennheiser IE 4 are premium wireless headphones designed to deliver high-quality sound along with advanced features like noise cancellation and long battery life. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. From a usability standpoint, both models provide a reliable and premium headphone experience. The frequency response differs (15 Hz - 22000 Hz vs 40 Hz - 20000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. There is a noticeable difference in weight (16 g vs NA), which may affect comfort during extended use. Impedance levels vary (18 Ohms vs 32 Ohms), which can affect compatibility and audio output when used with different devices. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. Both headphones are equipped with capable drivers that deliver balanced sound output suitable for music, calls, and entertainment.

Verdict: Choosing between Sennheiser Momentum In-Ear and Sennheiser IE 4 depends on whether you value better sound, longer battery life, or enhanced features.