Sennheiser CX 350BT vs Audio Technica ATH-S220BT – Which One Should You Buy? (2026)

2-year warranty. 10-hours of battery life. Superior audio with AAC and SBC codec support. Effortless multi-connection pairing for two devices. Call and music management via three-button remote. Advanced wireless Bluetooth 5.0 technology with seamless connectivity. Superior audio with AAC, SBC codec and additional AptX Low Latency support. Designed for comfort with four interchangeable ear tip sizes included for optimal fit and sound isolation. Music, calls and voice assistant interaction via four-button remote, with Siri and Google Assistant support. Sennheiserâ€™s Smart Control app allows for customization of sound via equalizer and a podcast mode for optimized speech, battery status, user manuals and firmware updates.

High-quality, built-in microphone ensures crystal-clear calls. Includes 1.2 m (3.9") cable with in-line mic and control for optional wired connection. 40 mm drivers provide powerful audio reproduction from a Bluetooth wireless signal. Multipoint pairing function allows you to stay connected to two Bluetooth devices at once. Google Fast Pair lets you quickly pair headphones with an Android smartphone or other device. Low latency mode improves synchronicity between audio and video for smooth streaming and gaming. Voice guidance function provides helpful notifications, including power and pairing status, and remaining battery level. Slim housings with sleek, lightweight earpads exert less pressure on your ears for a comfortable fit with good sound isolation. Easy-touch buttons in the earcup provide intuitive control of volume, music/video playback, and calls, and give you access to Siri and Google Assistant.

Key Differences

The driver size differs between the two (9.7 mm vs 40 mm), which can influence sound depth, bass response, and overall audio clarity. Impedance levels vary (28 ohm vs 32 ohm), which can affect compatibility and audio output when used with different devices. Battery life varies between the two (10 Hours vs 60 Hours), which affects how long you can use them on a single charge. Overall, both headphones are feature-rich and cater to users looking for a combination of sound quality, comfort, and wireless convenience. There is a noticeable difference in weight (14 gm vs 180 GM), which may affect comfort during extended use. The frequency response differs (17 Hz - 20000 Hz vs 5Hz - 32KHz), which can influence how well the headphones reproduce lows, mids, and highs. Sennheiser CX 350BT and Audio Technica ATH-S220BT offer different noise cancellation capabilities (NA vs Sound Isolation), which can impact how effectively they block external noise. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. Sennheiser CX 350BT and Audio Technica ATH-S220BT are premium wireless headphones designed to deliver high-quality sound along with advanced features like noise cancellation and long battery life.

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

Top Differences

Battery Life: 10 Hours vs 60 Hours
Noise Cancelling: NA vs Sound Isolation
Driver Size: 9.7 mm vs 40 mm
Weight: 14 gm vs 180 GM
Impedance: 28 ohm vs 32 ohm

Compare Sennheiser CX 350BT with:

Compare Audio Technica ATH-S220BT with:

Key Differences

Top Differences