Compare Sennheiser CX 400BT vs Yamaha TW-E3B vs Ultimate Ears FITS
Connectivity
Ports
USB-C
USB-C
USB-C
Wireless Connectivity
Bluetooth 5.1
Bluetooth 5
Bluetooth 5.0
Wireless Range
10 m / 32.8 ft
Construction
Cable
30 cm USB-A to USB-C
Carrying Case
Charging Case only
Charging case
Colors
Black, Grey, Blue, Green, Pink, Purple
Grey, Lilac, Midnight Blue
Drivers
Sennheiser 7mm dynamic driver
6.0 mm
10 mm
Form Factor
In-ear, True-wireless earphones
True Wireless Earphones, Dynamic Headphones
Headphone Type
In-ear, closed
Dynamic headphones
Microphone
Yes
Dimensions
Weight
2x 6g (earbud) + 37g (charging case)
5.1 g / 0.18 oz
Function
Bluetooth Codecs
SBC, AAC, aptX
SBC, AAC, Qualcomm aptX
SBC, AAC, APT-X
Bluetooth Profiles
A2DP, AVRCP, HSP, HFP
A2DP, AVRCP, HFP, HSP
Fast Charging
10 min of charge for 60 min of listening
Voice Assistance
Siri / Google Assistant
Weather Resistance
IPX5
Sweat Resistant / IPX3
Wireless Charging
No
Performance
Battery Life
7 h with earbuds, 20 h with charging case
24 h (Approx. 6 h + 3 recharges)
8 hours / 20 h with charging case
Charging Time
1.5 h
2 h
Frequency Response
5 Hz - 21 kHz
20Hz ~ 20kHz
20 Hz - 20 kHz
Max Sound Level
110 db at 500 Hz
Microphone Frequency Response
100 Hz - 10 kHz
Production
Accessory
Eartips: XS / S / M / L | Silicone Sleeves: No
Availability
2020-09-15
2021-10
Debut
2020-09-01
2021-09-28
2020-10-01
Made In
USA
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