CMF by Nothing Buds vs CMF by Nothing Buds Pro vs Sony WH-CH520

cshadmin

- Updated: 18th Feb 2026, 21:02 IST

Key Feature Comparison

8.4

At a Glance

Show differences only

20000 Hz

20 Hz

20 kHz

20 Hz

20000 Hz

20 Hz

460 mAh

35.5 hours with Case (ANC Off), 8 hours (Earbuds with ANC Off), 24 hours with Case (ANC On), 5.6 hours (Earbuds with ANC On)

460 mAh (Case), 55 mAh Per Earbud

39 Hours

Wireless

In Ear Canalphone, In the Ear

Wireless

In Ear Canalphone, In the Ear

Wireless

On Ear, Over the Head

10 meter

Auto Pairing

10 meter

Auto Pairing

10 meter

Auto Pairing

Detailed Specs

General

Brand

CMF

CMF by Nothing

Sony

Model

Buds

Buds Pro

WH-CH520

Launch Date

5-Mar-24

26-Sep-23

12-Apr-23

Price

Rs. 2,499

Rs. 3,499

Rs. 4,490

Price Status

Confirmed

Market Status

Available

Compatible Devices

Mobile Phone, PC, Tablet

Box Contents

Pair of earbuds, Ear tips in size S, M, L, Charging case, Safety information and warranty information , User guide

1 Pair of Earbuds, USB Cable, User Manual, Safety and Warranty Card

Headband

Warranty

1 Year

Design

Type

Wireless

Design

In Ear Canalphone

On Ear

Fit

In the Ear

Over the Head

Open or Closed Back

Closed Back

Water Resistant

Yes, IPX54 rating

Yes, IP54 Rated

Performance

Max Frequency Response

20000 Hz

20 kHz

20000 Hz

Min Frequency Response

20 Hz

Driver Type

Dynamic Driver

Dynamic

Physical Design

Eartip Size

Large, Medium, Small

Large

Weight

52 gm

Earbud 4.8 grams Charging box 44.5 grams

147 gm

Dimensions

Eartips :32.6 x 20.4 x 24.4 mm, Carrying case :54.7 x 54.7 x 22.9 mm

Dimensions Earbud 31.6 x 21.6 x 22.5mm, Charging box 58 x 58 x 24mm

Overall :237.9 x 104.1 x 119.1 mm

Colours

Dark Grey, Light Grey, Orange

Orange, Dark Grey, Light Grey

Black, Blue, White, Beige

Features

Noise Cancellation

Yes

Replaceable Earbuds

Yes

Call Control

Answer / End

Music Control

Volume Control

Noise Reduction

Anti-wind noise structure

Other Control

Touch

Volume up/down; on/off

Voice Assistant

Yes

Yes, Siri/OK Google

Connectivity

Bluetooth

Bluetooth Version

5.3

5.2

Bluetooth Profile

A2DP, AVRCP, HFP

A2DP, AVRCP, HFP, HSP

Bluetooth Range

10 meter

Bluetooth Features

Auto Pairing

Microphone

Yes

Battery

Battery Capacity

460 mAh

460 mAh (Case), 55 mAh Per Earbud

Playback Time

35.5 hours with Case (ANC Off), 8 hours (Earbuds with ANC Off), 24 hours with Case (ANC On), 5.6 hours (Earbuds with ANC On)

39 Hours

Charging Type

USB Type-C

USB

USB Type-C

Charging Time

1.5 Hours

1.5 hours (Case)

3 Hours

Battery Type

Li-ion

Latest Comparisons

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Sennheiser CX 80S

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JBL Live 660NC

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CMF by Nothing Buds

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