Sony WH-CH720N vs Sennheiser HD 450BT – Which One Should You Buy? (2026)

Super comfortable and lightweight design. All-day listening with up to 35 hours of battery life. High sound quality and well-balanced sound tuning. Sonyâ€™s lightest Wireless Noise-cancelling headband ever. Easy and clear hands-free calling and voice assistant with wake word. Multi-Point Connection helps to pair with two Bluetooth devices at the same time. DSEEâ„¢ restores high-frequency sound and fine fade-out sound lost in compression. Noise Cancelling with Dual Noise Sensor technology and the Integrated Processor V1. Up to 50-hour battery life with quick charging. 3 min charge for up to 1 hour of playback. Crystal clear hands-free calling and voice assistant with Precise Voice Pickup technology. Adjustable Ambient Sound mode and Adaptive Sound control features tailors sound to suit the environment around you. Take noise cancelling to the next level with Sonyâ€™s Integrated Processor V1,so you can fully immerse yourself in the music.

Smart Control App. 30-hour battery life. Connect and interact. Personalise your Sound. Exceptional wireless sound. Superior Sound technology. Enjoy your music â€“ without distraction. Your audio companion for every need. Your reliable companion on the move. App support providing an equalizer, Podcast Mode and Firmware updates. Intuitive controls including Virtual Assistant button for Siri and Google Assistant. Great wireless sound with deep dynamic bass and codec support including AAC and AptX Low Latency. USB-C fast charging and advanced wireless Bluetooth 5.0 technology for effortlessly reliable connectivity. Crafted from materials and with for outstanding durability with minimalist design available in a choice of white or black.

Key Differences

There is a noticeable difference in weight (238 gm vs 192 Gm), which may affect comfort during extended use. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. Sennheiser HD 450BT and Sony WH-CH720N are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. Impedance levels vary (490 ohm vs 325/31 ohm), which can affect compatibility and audio output when used with different devices. Sennheiser HD 450BT and Sony WH-CH720N offer different noise cancellation capabilities (Active vs Ambient NC), which can impact how effectively they block external noise. The driver size differs between the two (32 mm vs 30 mm), which can influence sound depth, bass response, and overall audio clarity. The frequency response differs (18 Hz - 22000 Hz vs 7 Hz - 20,000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Battery life varies between the two (30 Hours vs 35 Hours NC ON, 50 Hours NC OFF.), which affects how long you can use them on a single charge. Sennheiser HD 450BT uses Bluetooth 5.0 while Sony WH-CH720N supports Bluetooth 5.2, which can impact connectivity stability and efficiency.

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

Top Differences

Battery Life: 30 Hours vs 35 Hours NC ON, 50 Hours NC OFF.
Noise Cancelling: Active vs Ambient NC
Driver Size: 32 mm vs 30 mm
Bluetooth: 5.0 vs 5.2
Weight: 238 gm vs 192 Gm

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Key Differences

Top Differences