OnePlus Buds 4

Earbuds: 4.73 ± 0.2 g
Charging case: 39.57 ± 1 g
Total: 49.02 ± 1 g

Earbuds: 31*20.6*24.2mm
Charging case: 65.4*52.4*25.3mm

3 mics per side (6 in total)

11mm woofer + 6mm tweeter

Bluetooth 5.4

OnePlus 3D Audio
Sound Master EQ
Golden Sound
47ms Low Latency
AI Translation
Voice Assistant Shortcut
Find My Earbuds
Double-Tap for Camera Control
Compatibility with HeyMelody App
OTA Updates

15Hz~40KHz

IP55

18Ω ± 15%
10Ω ± 15%

Up to 55dB

96.5dB

Earbuds: about 50 minutes
Earbuds + Case: about 80 minutes

Earbuds: 10 minutes charge for 3.5 hours playback
Earbuds + Case: 10 minutes charge for 11 hours playback

Playback (ANC Off, 50% volume, AAC)
Earbuds: 11 hours
Earbuds + Case: 45 hours

Playback (ANC On, 50% volume, AAC)
Earbuds: 6 hours
Earbuds + Case: 24 hours

Playback (ANC Off, 50% volume, LHDC)
Earbuds: 9 hours
Earbuds + Case: 37 hours

Playback (ANC On, 50% volume, LHDC)
Earbuds: 5.5 hours
Earbuds + Case: 22 hours

Talk Time (ANC Off, 50% volume, HFP)
Earbuds: 6 hours
Earbuds + Case: 24 hours

Talk Time (ANC On, 50% volume, HFP)
Earbuds: 4 hours
Earbuds + Case: 17 hours

USB Type-C

Earbuds: 62 mAh
Charging Case: 530 mAh