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Sennheiser HD 400U Wired Earphones vs OnePlus Buds 4 True Wireless Stereo (TWS) Earphones

Sennheiser HD 400U Wired Earphones vs OnePlus Buds 4 True Wireless Stereo (TWS) Earphones comparison

Show Only Differences Highlight Differences	Sennheiser HD 400U Wired Earphones	OnePlus Buds 4 True Wireless Stereo (TWS) Earphones
key specs
Headphone Type	In-Ear	In-Ear
Microphone	Yes	Yes
Connectivity	Wired	True Wireless Stereo (TWS)
Type	Earphones	Earphones
Colour	-	Green
general
Brand	Sennheiser	OnePlus
Model	HD 400U Wired Earphones	Buds 4 True Wireless Stereo (TWS) Earphones
Release date	April 22, 2026	July 8, 2025
Type	Earphones	Earphones
Headphone Type	In-Ear	In-Ear
Connectivity	Wired	True Wireless Stereo (TWS)
Colour	-	Green
product details
Microphone	Yes	Yes
Cord Length (Metres)	1.2	-
Driver Type	Dynamic	-
Driver Size (mm)	9.7	11
Weight (g)	14.30	4.73
Number of Drivers	-	2
Water Resistant	-	IP55
Weight With Case (g)	-	49.02
sound features
Impedance (Ohms)	28	18
Active Noice Cancellation	No	Yes
Frequency Response Range	17Hz-20,000Hz	15Hz-40,000Hz
Sensitivity (dB)	-	118
Noise Reduction (dB)	-	44
ratings
Overall NDTV Rating	-	Read Review
Design / Comfort Rating	-
Audio Quality Rating	-
Battery Life Rating	-
Value For Money Rating	-
connectivity features
Bluetooth	-	Yes
Bluetooth Version	-	5.4
Bluetooth Codec Support	-	SBC, AAC, LHDC
battery features
Charging Port	-	USB Type-C
Charging Time (Hrs)	-	1.5
Battery Life (Hrs) Earpieces Only	-	11
Battery Life (Hrs) With Case Total	-	45
Battery Capacity (mAh) Earpieces	-	62
Battery Capacity (mAh) Case	-	530

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