Compare Sennheiser CX True Wireless vs Sennheiser CX 400BT vs Ultimate Ears FITS
Connectivity
Ports
USB-C
USB-C
USB-C
Wireless Connectivity
Bluetooth 5.2
Bluetooth 5.1
Bluetooth 5.0
Construction
Battery | Capacity
2x 60 mAh (each earbud) + 400 mAh (charging case)
Carrying Case
Charging case
Colors
Grey, Lilac, Midnight Blue
Drivers
TrueResponse Transducer Sennheiser 7mm dynamic driver
Sennheiser 7mm dynamic driver
10 mm
Form Factor
True Wireless Earphones, Dynamic Headphones
Headphone Type
In-ear, closed
In-ear, closed
Microphone
2 mic beamforming arrays (4 mics in total)
Yes
Dimensions
Weight
2x 6g (earbud) + 37g (charging case)
2x 6g (earbud) + 37g (charging case)
Function
Bluetooth Codecs
SBC, AAC, aptX
SBC, AAC, aptX
SBC, AAC, APT-X
Bluetooth Profiles
A2DP, AVRCP, HFP
A2DP, AVRCP, HSP, HFP
Fast Charging
15 min for 1 h playtime
10 min of charge for 60 min of listening
Noise Cancellation
Passive
Weather Resistance
Sweat Resistant / IPX3
Performance
Battery Life
9 h with earbuds, 27 h with charging case
7 h with earbuds, 20 h with charging case
8 hours / 20 h with charging case
Charging Time
1.5 h
1.5 h
Frequency Response
5 Hz - 21 kHz
5 Hz - 21 kHz
20 Hz - 20 kHz
Max Sound Level
110 db at 500 Hz
Microphone Frequency Response
100 Hz - 10 kHz
100 Hz - 10 kHz
Production
Availability
2021-07-08
2020-09-15
Debut
2021-06-28
2020-09-01
2020-10-01
Made In
USA
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