Sennheiser MOMENTUM Free vs. Sennheiser CX Plus

Headphones Comparison, Reviews and Tests

Side by side comparison and review of Sennheiser MOMENTUM Free and Sennheiser CX Plus. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.

Headphones Specifications Comparison

Sennheiser MOMENTUM Free vs. Sennheiser CX Plus Comparison Chart
DESIGN AND DIMENSIONS Sennheiser MOMENTUM Free Sennheiser CX Plus
Product Type Earphones - Bluetooth - wireless True wireless earphones - Bluetooth - wireless
Weight 40 g -
Dimensions & Weight Details - Earbud: 5.9 cm x 3.38 cm x 4.23 cm / 6 g
Charging case: 35 g
Colour Black, red White | Black
Earpad Material Stainless steel -
Protection - Splashproof, IPX4
Recommended Use Portable electronics Portable electronics
Bluetooth Range (Operating Distance) 10 m -
SOUND QUALITY Sennheiser MOMENTUM Free Sennheiser CX Plus
Headphones Form Factor In-ear In-ear
Headphones Technology Dynamic Dynamic
Connectivity Technology Wireless Wireless
Wireless Technology Bluetooth Bluetooth
Bluetooth Version Bluetooth 4.2 Bluetooth 5.2 Sennheiser CX Plus have a more advanced version of Bluetooth than Sennheiser MOMENTUM Free.
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, aptX, apt-X LL SBC, AAC, aptX, aptX Adaptive
Active Noise Cancelling - Yes Sennheiser CX Plus are equipped with active noice cancellation.
Sound Output Mode Stereo Stereo
Sound Effects - Bass Boost
Frequency Response 15 - 22000 Hz 5 - 21000 Hz Sennheiser MOMENTUM Free offer a larger frequency range than Sennheiser CX Plus.
Total Harmonic Distortion (THD) <0.5% -
Sensitivity 118 dB -
Impedance 28 Ohm -
Max Sound Pressure 112 dB -
Diaphragm - 7 mm
Simultaneously Connectable Devices Qty (Multipoint) 2 1 Sennheiser MOMENTUM Free have the ability to connect to multiple devices simultaneously.
Features Voice control TrueResponse technology
MICROPHONE Sennheiser MOMENTUM Free Sennheiser CX Plus
Form Factor - Built-in
Type On-cable -
Microphone Operation Mode Omni-directional -
Frequency Response - 100 - 10000 Hz
Sensitivity -44 dBV/Pascal -
Microphones Included - 4
REMOTE CONTROL Sennheiser MOMENTUM Free Sennheiser CX Plus
Controls Volume, answer/end, next/previous track, reject call -
CABLE Sennheiser MOMENTUM Free Sennheiser CX Plus
Cable Type USB charge cable - detachable USB-C charge cable - detachable
FEATURES Sennheiser MOMENTUM Free Sennheiser CX Plus
Features - Touch control
Internet of Things (IoT) Compatible - Yes
Intelligent Assistant - Siri, Google Assistant
BATTERY AND CHARGING Sennheiser MOMENTUM Free Sennheiser CX Plus
Battery Type Headphone battery rechargeable - Lithium Ion Headphone battery rechargeable - Lithium Ion
Battery Capacity 86 mAh 55 mAh Sennheiser MOMENTUM Free have a higher battery capacity than Sennheiser CX Plus.
Battery Life 6 hour(s) -
Battery Life Details - Continuous playback (with included charging case): up to 24 hours
Charging Time 1.5 hour(s) 1.5 hour(s) The charging of both headphones last the same time.
Included Qty - 2
OTHERS Sennheiser MOMENTUM Free Sennheiser CX Plus
Included Accessories Carrying case, 4 pairs of ear tips (XS, S,M, L) 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh)
Service & Support - Limited warranty - 2 years
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