Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. There is a noticeable difference in weight (192 g (including rechargeable battery) vs 273 gm), which may affect comfort during extended use. From a usability standpoint, both models provide a reliable and premium headphone experience. Impedance levels vary (33 ohms vs 40 ohm), which can affect compatibility and audio output when used with different devices. The driver size differs between the two (40 mm vs 30 mm), which can influence sound depth, bass response, and overall audio clarity. The frequency response differs (20 - 20,000 Hz vs 5 Hz - 22,000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Audio Technica ATH-ANC29 and Sony XB450BV are premium wireless headphones designed to deliver high-quality sound along with advanced features like noise cancellation and long battery life. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. Audio Technica ATH-ANC29 and Sony XB450BV offer different noise cancellation capabilities (Yes (Reduces Noise up to 18 dB) vs No), which can impact how effectively they block external noise.

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