Sennheiser HD 350BT vs Philips ASH402BK/00 – Full Comparison & Verdict (2026)

Smart Control App. 30-hour battery life. Connect and interact. Personalise your Sound. Exceptional wireless sound. Superior Sound technology. Your audio companion for every need. 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.

IPX4 splash and sweat resistant. Flat-folding design. Easy storage. From workout playlist to vital call. Sleek design. Flat-folding ear cups. 40 mm neodymium acoustic drivers. 20 hours play time. Stay-cool ear cups. Cooling ear cups. Train hard. Stay cool. Built-in mic with echo cancellation for clear audio. Quick Charge. Charge for 10 minutes, get 2 hours play. Smart pairing. Automatically find your Bluetooth device. Breathable ear-cup cushions. Easily detach for cleaning. Detailed sound. Good bass. Great passive noise isolation.

Key Differences

Impedance levels vary (490 ohm vs 32 ohm), which can affect compatibility and audio output when used with different devices. Battery life varies between the two (30 Hours vs 20 Hours), which affects how long you can use them on a single charge. There is a noticeable difference in weight (238 gm vs 179 gm), which may affect comfort during extended use. The driver size differs between the two (32 mm vs 40 mm), which can influence sound depth, bass response, and overall audio clarity. Sennheiser HD 350BT and Philips ASH402BK/00 offer different noise cancellation capabilities (Active / Passive vs Passive), which can impact how effectively they block external noise. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. Sennheiser HD 350BT and Philips ASH402BK/00 are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. The frequency response differs (18 Hz - 22000 Hz vs 20 Hz - 20000 kHz), which can influence how well the headphones reproduce lows, mids, and highs.

Verdict: Choosing between Sennheiser HD 350BT and Philips ASH402BK/00 depends on whether you value better sound, longer battery life, or enhanced features.

Top Differences

Battery Life: 30 Hours vs 20 Hours
Noise Cancelling: Active / Passive vs Passive
Driver Size: 32 mm vs 40 mm
Weight: 238 gm vs 179 gm
Impedance: 490 ohm vs 32 ohm

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Key Differences

Top Differences