Sony WF-C500 vs Sennheiser RS 120 II – Which One Should You Buy? (2026)

Easier, clearer hands-free calling. One earbud, ideal for multitasking. Stable, reliable BluetoothÂ® connectivity . Built-In Mic - Easier, clearer hands-free calling. Portable - Go anywhere with pocket-sized case. Design â€“ Ergonomic Surface Design for Secure fit. Comfort - Small and light for a great fit and all day wear. Ratings - Splash-proof and sweat-proof with an IPX4 rating. 10-minute quick charging gives you up to an hour of extra play time. Battery Life - Up to 10hr battery life, total up to 20hr with charging case. Sound Quality - DSEE restores high frequency sounds lost in compression. Easy button operation - WF-C500 Earbuds not only let you play, stop or skip through tracks and adjust the volume.

2-year warranty. Appealing, modern design. Range of up to 100 metres (300 feet). Optional wall mounting of transmitter possible. Rechargeable NiMH batteries included (size: AAA). Open, stereo, supraaural, wireless RF headphone system. Suitable for all types of modern music and TV applications. Wireless freedom with reception through walls and ceilings. Very lightweight headphones, extremely comfortable to wear. Detailed, analytical sound reproduction with strong bass response. Transmitter with metal cradle for storing and recharging the headphones. Control elements conveniently positioned to provide easy, intuitive operation.

Key Differences

Battery life varies between the two (20 Hours vs 10 Hours), which affects how long you can use them on a single charge. Impedance levels vary (24 ohm vs 91.75 Ohms), which can affect compatibility and audio output when used with different devices. The driver size differs between the two (NA vs 5.8 mm), which can influence sound depth, bass response, and overall audio clarity. Sennheiser RS 120 II uses Bluetooth NA while Sony WF-C500 supports Bluetooth 5.0, which can impact connectivity stability and efficiency. There is a noticeable difference in weight (200 gm vs 35 GM), which may affect comfort during extended use. If you're comparing Sennheiser RS 120 II and Sony WF-C500, both models offer a strong combination of sound performance, comfort, and modern wireless features. The frequency response differs (22 Hz - 19500 Hz vs 20Hz - 20KHz), which can influence how well the headphones reproduce lows, mids, and highs. Sennheiser RS 120 II and Sony WF-C500 offer different noise cancellation capabilities (NA vs Sound Isolation), which can impact how effectively they block external noise. Overall, both headphones are feature-rich and cater to users looking for a combination of sound quality, comfort, and wireless convenience.

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

Top Differences

Battery Life: 20 Hours vs 10 Hours
Noise Cancelling: NA vs Sound Isolation
Driver Size: NA vs 5.8 mm
Bluetooth: NA vs 5.0
Weight: 200 gm vs 35 GM

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Key Differences

Top Differences