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

cshadmin

- Updated: 9th Dec 2025, 16:32 IST

Key Feature Comparison

At a Glance

Show differences only

20000 Hz

20 Hz

20 kHz

20 Hz

20000 Hz

20 Hz

220 mAh

37 hours (ANC Off), 23 hours (ANC On)

460 mAh (Case), 55 mAh Per Earbud

39 Hours

Wireless

In Ear Canalphone, Behind the neck

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

Neckband Pro

Buds Pro

WH-CH520

Launch Date

5-Mar-24

26-Sep-23

12-Apr-23

Price

Rs. 1,999

Rs. 3,499

Rs. 4,490

Price Status

Confirmed

Market Status

Available

Compatible Devices

Mobile Phone, PC, Tablet

Box Contents

CMF Neckband Pro x 1, Ear tips in size S, M, L, 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

Behind the neck

In the Ear

Over the Head

Open or Closed Back

Closed Back

Water Resistant

Yes, IP55 rating

Yes, IP54 Rated

Performance

Max Frequency Response

20000 Hz

20 kHz

20000 Hz

Min Frequency Response

20 Hz

Driver Type

Dynamic Driver, 13.6 mm

Dynamic

Physical Design

Foldable Design

Yes

Eartip Size

Large, Medium, Small

Large

Weight

29 gm

Earbud 4.8 grams Charging box 44.5 grams

147 gm

Dimensions

Overall :937 x 13.2 x 22.8 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

Active Noise Cancellation

Yes

Replaceable Earbuds

Yes

Call Control

Answer / End

Music Control

Volume Control

Voice Assistant

Yes

Yes, Siri/OK Google

Noise Reduction

Anti-wind noise structure

Other Control

Touch

Volume up/down; on/off

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

220 mAh

460 mAh (Case), 55 mAh Per Earbud

Playback Time

37 hours (ANC Off), 23 hours (ANC On)

39 Hours

Charging Type

USB Type-C

USB

USB Type-C

Charging Time

10 mins of charge provides 18 hours of playback

1.5 hours (Case)

3 Hours

Battery Type

Li-ion

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