There is a noticeable difference in weight (270 g vs 170 g), which may affect comfort during extended use. Both headphones are equipped with capable drivers that deliver balanced sound output suitable for music, calls, and entertainment. Overall, both headphones are feature-rich and cater to users looking for a combination of sound quality, comfort, and wireless convenience. If you're comparing Beyerdynamic DT 770 PRO and Beyerdynamic DT 252, both models offer a strong combination of sound performance, comfort, and modern wireless features. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. Both models feature noise cancellation, helping reduce background noise for a more immersive listening experience. Impedance levels vary (32/80/250 Ohms vs 80 Ohms), which can affect compatibility and audio output when used with different devices. The frequency response differs (5 Hz - 35000 Hz vs 10 Hz - 30000 Hz), which can influence how well the headphones reproduce lows, mids, and highs.

Verdict: Both models are competitive, and your decision should be based on your usage needs and preferred features.