The frequency response differs (20 - 20,000 Hz vs 20 Hz - 20000 kHz), which can influence how well the headphones reproduce lows, mids, and highs. The driver size differs between the two (40 mm vs 32 mm), which can influence sound depth, bass response, and overall audio clarity. Impedance levels vary (20 ohms (when noise cancelling function is used) vs 32 ohm), which can affect compatibility and audio output when used with different devices. There is a noticeable difference in weight (104 g (Inclusive of Battery and Cable) vs 132 gm), which may affect comfort during extended use. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. Audio Technica ATH-ANC25 and Philips TAH3155BK/97 are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. From a usability standpoint, both models provide a reliable and premium headphone experience. Audio Technica ATH-ANC25 and Philips TAH3155BK/97 offer different noise cancellation capabilities (Yes (Reduces Noise up to 15 dB) vs Passive), which can impact how effectively they block external noise.

Verdict: Both headphones offer strong performance, and the right choice depends on your priorities such as battery life, comfort, and noise cancellation.