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boAt Airdopes 311 Pro vs OnePlus Nord Buds 3R vs Boult Audio Z40 Pro

cshadmin

- Updated: 14th Jan 2026, 20:20 IST

Key Feature Comparison

At a Glance

Show differences only

20000 Hz

20 Hz

20000 Hz

20 Hz

600 mAh

50 Hours

560 mAh

54 Hours

8 Hours

Wireless

In Ear Canalphone, In the Ear

Wireless

In Ear Canalphone, In the Ear

Wireless

In Ear Canalphone, In the Ear

10 meter

Auto Pairing

10 meter

Auto Pairing

10 meter

Auto Pairing

Detailed Specs

General

Brand

Boat

OnePlus

Boult Audio

Model

Airdopes 311 Pro

Nord Buds 3r

Z40 Pro

Launch Date

27-May-24

26-Aug-25

30-Sep-23

Price

Rs. 999

Rs. 1,799

Rs. 1,599

Price Status

Confirmed

Market Status

Available

Compatible Devices

Mobile Phone, PC, Tablet

Box Contents

Earbuds, Charging Case, USB Cable Type C, User Manual, Warranty Card

1 Pair of Earbuds, Charging Case, User Manual Guide, Safety and Warranty Card, Charging Cable Type-C, Red Cable Club Card, 2 Pair of Additional Ear Tips

1 Pair of Earbuds, Charging Case, Charging Cable, User Manual, Warranty Card, Additional Pair of Ear Tips

Warranty

1 Year

Design

Type

Wireless

Design

In Ear Canalphone

Fit

In the Ear

Open or Closed Back

Closed Back

Water Resistant

Yes, IPX4 rating

Performance

Max Frequency Response

20000 Hz

Min Frequency Response

20 Hz

Driver Type

Dynamic Driver

Dynamic Driver, 12.4 mm

Dynamic Driver, 10 mm

Impedance

32 Ohms

Sensitivity

112 dB/mw

Physical Design

Foldable Design

Yes

Eartip Size

Large, Medium, Small

Weight

50 gm

48 gm

50 gm

Dimensions

Overall :66 x 28 x 50 mm

Eartips :31.1 x 23.3 x 20.3 mm Carrying case :60.2 x 47.5 x 24 mm

Overall :48 x 27 x 60 mm

Colours

Active Black, Space Grey, Dusk Blue, Lavender Rush

Ash Black, Aura Blue

Pro Midnight, Pro Dawn, Pro Jungle, Pro Lavender

Features

Replaceable Earbuds

Yes

Call Control

Answer / End

Music Control

Volume Control

Noise Cancellation

Yes

Connectivity

Bluetooth

Bluetooth Version

5.3

5.4

5.3

Bluetooth Range

10 meter

Bluetooth Features

Auto Pairing

Microphone

Yes

Bluetooth Profile

A2DP AVRCP HFP

A2DP, AVRCP, HFP, HSP

Battery

Battery Capacity

600 mAh

560 mAh

Playback Time

50 Hours

54 Hours

8 Hours

Charging Type

USB Type-C

Charging Time

1.5 Hours

120 Minute

90 Minute

Battery Type

Li-Polymer

Li-ion

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