Sennheiser MOMENTUM Free vs Sony WH-CH720N – Specs, Price & Comparison (2026)

Signature Sennheiser Sound. Cutting-edge Wireless Technology. The battery lasts for six long hours of listening pleasure. A premium product in every detail the momentum free features custom machined stainless steel in-ear sound tunnels that channel the sound from its high-quality dynamic speaker system lossless into the ear. Bluetooth 4.2, AAC codec support and Qualcomm apt-X support ensures crystal clear wireless transmission in true hi-fi sound. It communicates seamlessly with your mobile device thanks to a three-button remote and high-quality in-line microphone between the earpieces. Battery Specification: Built-in Rechargeable Lithium-ion Polymer (~85mAh) with more than 500 charges.

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.

Key Differences

In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. If you're comparing Sennheiser MOMENTUM Free and Sony WH-CH720N, both models offer a strong combination of sound performance, comfort, and modern wireless features. Sennheiser MOMENTUM Free and Sony WH-CH720N offer different noise cancellation capabilities (Active vs Ambient NC), which can impact how effectively they block external noise. There is a noticeable difference in weight (17 gm vs 192 Gm), which may affect comfort during extended use. Sennheiser MOMENTUM Free uses Bluetooth 4.2 while Sony WH-CH720N supports Bluetooth 5.2, which can impact connectivity stability and efficiency. Impedance levels vary (28 ohm vs 325/31 ohm), which can affect compatibility and audio output when used with different devices. The driver size differs between the two (10 mm vs 30 mm), which can influence sound depth, bass response, and overall audio clarity. Battery life varies between the two (6 Hours vs 35 Hours NC ON, 50 Hours NC OFF.), which affects how long you can use them on a single charge. The frequency response differs (15 Hz - 22000 Hz vs 7 Hz - 20,000 Hz), which can influence how well the headphones reproduce lows, mids, and highs.

Verdict: Choosing between Sennheiser MOMENTUM Free and Sony WH-CH720N depends on whether you value better sound, longer battery life, or enhanced features.

Top Differences

Battery Life: 6 Hours vs 35 Hours NC ON, 50 Hours NC OFF.
Noise Cancelling: Active vs Ambient NC
Driver Size: 10 mm vs 30 mm
Bluetooth: 4.2 vs 5.2
Weight: 17 gm vs 192 Gm

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Key Differences

Top Differences