Sennheiser CX True Wireless vs. Poly SupraPlus NC

Headphones Comparison, Reviews and Tests

In depth comparison and review of Sennheiser CX True Wireless and Poly SupraPlus NC. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.

Headphones Specifications Comparison

Sennheiser CX True Wireless vs. Poly SupraPlus NC Comparison Chart
DESIGN AND DIMENSIONS Sennheiser CX True Wireless Poly SupraPlus NC
Product Type True wireless earphones - Bluetooth - wireless Headset
Dimensions & Weight Details Earbud: 6 g
Charging case: 5.9 cm x 4.23 cm x 3.38 cm / 37 g
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Colour Black | White -
Protection Splashproof, IPX4 -
Recommended Use Portable electronics -
SOUND QUALITY Sennheiser CX True Wireless Poly SupraPlus NC
Headphones Form Factor In-ear -
Headphones Technology Dynamic -
Ear Cups Type Closed -
Connectivity Technology Wireless -
Wireless Technology Bluetooth -
Bluetooth Version Bluetooth 5.2 -
Bluetooth Profiles Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) -
Bluetooth Audio Codec SBC, AAC, aptX -
Noise Isolating Yes - Sennheiser CX True Wireless are equipped with a noise isolating function.
Sound Output Mode Stereo -
Sound Effects Bass Boost -
Frequency Response 5 - 21000 Hz -
Total Harmonic Distortion (THD) <0.08% -
Sensitivity 110 dB -
Impedance 16 Ohm -
Max Sound Pressure 110 dB -
Diaphragm 7 mm -
Simultaneously Connectable Devices Qty (Multipoint) 1 -
Features TrueResponse technology -
MICROPHONE Sennheiser CX True Wireless Poly SupraPlus NC
Form Factor Built-in -
Frequency Response 100 - 10000 Hz -
Microphones Included 4 -
CABLE Sennheiser CX True Wireless Poly SupraPlus NC
Cable Type USB-C charge cable - detachable - 25 cm -
FEATURES Sennheiser CX True Wireless Poly SupraPlus NC
Features Touch control -
Internet of Things (IoT) Compatible Yes -
Voice Control Indirect -
Intelligent Assistant Siri, Google Assistant -
BATTERY AND CHARGING Sennheiser CX True Wireless Poly SupraPlus NC
Battery Type Headphone battery rechargeable - Lithium Ion -
Battery Capacity 60 mAh -
Battery Life 9 hour(s) -
Battery Life Details Continuous playback (50% volume): up to 9 hours
Continuous playback (with included charging case): up to 27 hours
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Charging Time 1.5 hour(s) -
Included Qty 2 -
OTHERS Sennheiser CX True Wireless Poly SupraPlus NC
Included Accessories 4 pairs of earpads (extra small, small, medium, large), charging case (400 mAh) Monitor receiver
Compliant Standards Bluetooth Class 1 -
TAA Compliant - Yes
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