Sennheiser CX 150BT vs. Huawei FreeBuds 4

Headphones Comparison, Reviews and Tests

Detailed comparison and review of Sennheiser CX 150BT and Huawei FreeBuds 4. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.

Headphones Specifications Comparison

Sennheiser CX 150BT vs. Huawei FreeBuds 4 Comparison Chart
DESIGN AND DIMENSIONS Sennheiser CX 150BT Huawei FreeBuds 4
Product Type Earphones - Bluetooth - wireless True wireless earphones - Bluetooth - wireless
Weight 12 g -
Dimensions & Weight Details - Charging case: 5.8 cm x 5.8 cm x 2.12 cm / 38 g
Earbud: 1.68 cm x 1.85 cm x 4.14 cm / 4.1 g
Colour Black | White Ceramic white | Silver frost
Protection - Splashproof, dust-resistant, water-resistant
Recommended Use Portable electronics Portable electronics
Bluetooth Range (Operating Distance) 10 m -
High-Resolution Audio - Yes
SOUND QUALITY Sennheiser CX 150BT Huawei FreeBuds 4
Headphones Form Factor In-ear In-ear
Headphones Technology Dynamic -
Connectivity Technology Wireless Wireless
Wireless Technology Bluetooth Bluetooth
Bluetooth Version Bluetooth 5.0 Bluetooth 5.2 Huawei FreeBuds 4 have a more advanced version of Bluetooth than Sennheiser CX 150BT.
Bluetooth Profiles Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP)
Bluetooth Audio Codec SBC, AAC SBC, AAC
Active Noise Cancelling - Yes Huawei FreeBuds 4 are equipped with active noice cancellation.
Sound Output Mode Stereo Stereo
Frequency Response 17 - 20000 Hz 20 - 20000 Hz Sennheiser CX 150BT offer a larger frequency range than Huawei FreeBuds 4.
Total Harmonic Distortion (THD) 0.5% -
Impedance 28 Ohm -
Max Sound Pressure 100 dB -
Diaphragm - 14.3 mm
MICROPHONE Sennheiser CX 150BT Huawei FreeBuds 4
Form Factor - Built-in
Type On-cable -
Microphone Operation Mode Omni-directional -
Noise Cancelling - Yes Huawei FreeBuds 4 microphone can cancel out ambient noise.
REMOTE CONTROL Sennheiser CX 150BT Huawei FreeBuds 4
Controls 3-button remote Swipe control
CABLE Sennheiser CX 150BT Huawei FreeBuds 4
Cable Type USB-C charge cable -
FEATURES Sennheiser CX 150BT Huawei FreeBuds 4
Sensors - Wear sensor
BATTERY AND CHARGING Sennheiser CX 150BT Huawei FreeBuds 4
Battery Type Headphone battery rechargeable Headphone battery rechargeable - lithium polymer
Battery Capacity - 30 mAh
Battery Life 10 hour(s) 4 hour(s) Sennheiser CX 150BT lasts longer on a single charge than the Huawei FreeBuds 4.
Battery Life Details - Continuous playback (active noise-cancelling off): up to 4 hours
Continuous playback (active noise-cancelling on): up to 2.7 hours
Continuous playback (active noise-cancelling off) (with included charging case): up to 22 hours
Continuous playback (active noise-cancelling on) (with included charging case): up to 14 hours
Continuous talk (active noise-cancelling off): up to 2.3 hours
Continuous talk (active noise-cancelling on): up to 2 hours
Charging Time - 1 hour(s)
OTHERS Sennheiser CX 150BT Huawei FreeBuds 4
Included Accessories 4 pairs of ear tips (XS, S,M, L) USB-C charging cable, charging case (410 mAh)
Compliant Standards - RoHS, halogen-free, IPX4
Service & Support Limited warranty - 2 years -
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