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Wireless EarbudsUpdated November 26, 2025
Boult Audio Z40 with 60 Hours Playtime and Zen ENC Mic

Boult Audio

Boult Audio Z40

₹799

VS
Top pick
Sony WF-C500 Truly Wireless Bluetooth Earbuds

Sony

Sony WF-C500

₹4,030

Boult Audio Z40 vs Sony WF-C500

An in-depth comparison to help you choose the right wireless earbuds for your needs.

Price gap

₹3,231

Score gap

3 pts

Rating gap

0.2

Editor's analysis

The expert read

A hand-written take on how these two compare in the real world.

Sony's audiophile budget pick versus Boult's battery marathon champion. The Sony WF-C500 at Rs 4,030 deliver DSEE upscaling and 5.8mm precision drivers with 20hr battery. The Boult Audio Z40 at Rs 799 offer 10mm drivers, Zen ENC calls, and an astonishing 60hr battery. Sony's battery is one-third of Boult's, and the price is five times higher. If battery and price are your metrics, Boult wins by a landslide. If sound quality is your metric, Sony wins by an equal landslide.

Round by round

Head to head

How each product stacks up across the key dimensions.

Product A

Boult Audio Z40

4

wins

VS

Product B

Sony WF-C500

2

wins

Price
Winner

₹799

B

₹4,030

User Rating
A

4.1 / 5

Winner

4.3 / 5

Our Score
A

81/100

Winner

84/100

Popularity
Winner

Popular

B

2,876 reviews

Driver Size
Winner

10mm Drivers

B

5.8mm Driver Unit

Battery Life
Winner

Up to 60 hours (with case)

B

Up to 20 hours (with case)

Quick summary

The short version

Sony's audiophile budget pick versus Boult's battery marathon champion. The Sony WF-C500 at Rs 4,030 deliver DSEE upscaling and 5.8mm precision drivers with 20hr battery.

Sony WF-C500

Best overall

Sony WF-C500

₹4,0304.3/5vs Boult Audio
Check price

The Boult Audio Z40 at Rs 799 offer 60hr of acceptable audio. The Sony WF-C500 at Rs 4,030 offer 20hr of exceptional audio. Most Indian buyers benefit more from 60hr of good-enough sound than 20hr of great sound. Be honest about your priorities.

Side by side

The products

Each pick at a glance, what they include and what they cost.

Boult Audio Z40 with 60 Hours Playtime and Zen ENC Mic

Boult Audio

Boult Audio Z40

4.1(4,821)
₹799

Inclusive of all taxes

Check Price on Amazon
Popular Choice

Key Features

  • Massive 60 hours total playtime with charging case
  • Zen Environmental Noise Cancellation for clear calls
  • Low latency gaming mode for seamless experience

Specs at a Glance

Driver Size

10mm Drivers

Battery Life

Up to 60 hours (with case)

Active Noise Cancellation

No ANC (Zen ENC for calls)

Bluetooth Version

5.2

Our Pick
Sony WF-C500 Truly Wireless Bluetooth Earbuds

Sony

Sony WF-C500

4.3(2,876)
₹4,030

Inclusive of all taxes

Check Price on Amazon

Key Features

  • DSEE technology restores high-frequency sound details
  • 360 Reality Audio support for immersive listening
  • 20 hours total battery with compact charging case

Specs at a Glance

Driver Size

5.8mm Driver Unit

Battery Life

Up to 20 hours (with case)

Active Noise Cancellation

No ANC

Bluetooth Version

5.0

Prices accurate as of 26/11/2025. Prices and availability on Amazon.in may change.

What sets them apart

Key differences

The decisions you are actually making when you pick one over the other.

₹3,231 price difference

Boult Audio Z40

The Boult Audio Z40 is 80% more affordable, saving you ₹3,231. This is a significant price gap that could be a deciding factor.

Sony WF-C500 is rated higher by users

Sony WF-C500

With 4.3 stars from 2,876 reviews, the Sony WF-C500 has stronger customer satisfaction. The large number of reviews makes this rating highly reliable.

Driver Size: 10mm Drivers vs 5.8mm Driver Unit

Boult Audio Z40

The Boult Audio Z40 leads in driver size with 10mm Drivers compared to 5.8mm Driver Unit.

Battery Life: Up to 60 hours (with case) vs Up to 20 hours (with case)

Boult Audio Z40

The Boult Audio Z40 leads in battery life with Up to 60 hours (with case) compared to Up to 20 hours (with case).

Bluetooth Version: 5.2 vs 5.0

Boult Audio Z40

The Boult Audio Z40 leads in bluetooth version with 5.2 compared to 5.0.

Spec sheet

Detailed Specifications

Side-by-side numbers with subtle highlighting on the stronger value.

SpecificationBoult Audio Z40Sony WF-C500
Price₹799₹4,030
Rating4.1 / 5(4,821)4.3 / 5(2,876)
Driver Size10mm Drivers5.8mm Driver Unit
Battery LifeUp to 60 hours (with case)Up to 20 hours (with case)
Active Noise CancellationNo ANC (Zen ENC for calls)No ANC
Bluetooth Version5.25.0
Water ResistanceIPX5IPX4
Charging TypeUSB Type-C Fast ChargingUSB Type-C
MicrophonesQuad Mic with Zen ENCBuilt-in Mic
Weight4.5g per earbud5.4g per earbud

Highlighted cells indicate the stronger value in that row.

Strengths and tradeoffs

Pros and cons

Where each pick shines, and where you'll have to compromise.

Boult Audio Z40

81/100

Excellent value

What we like

  • Exceptional 60-hour battery life matches premium models
  • Excellent value at ₹799 price point
  • Good bass response from 10mm drivers
  • IPX5 rating great for fitness enthusiasts
  • Zen ENC provides clear call quality
  • Fast charging via Type-C is convenient
  • Made in India with quality assurance

What could be better

  • No Active Noise Cancellation
  • Sound quality lacks detail in mids
  • Build quality could be more premium
  • Touch controls are basic
  • Limited brand recognition compared to boAt/Noise
  • No dedicated app for customization
  • Bluetooth 5.2 (not latest 5.3)

Sony WF-C500

84/100

Excellent value

What we like

  • Signature Sony sound quality and clarity
  • DSEE audio enhancement technology
  • 360 Reality Audio creates immersive soundstage
  • Extremely compact and portable charging case
  • Comfortable ergonomic fit for long listening
  • Reliable Sony build quality and durability

What could be better

  • No Active Noise Cancellation feature
  • Relatively short 20-hour battery life
  • Higher price without ANC compared to rivals
  • Touch controls can be finicky
  • Bluetooth 5.0 (not latest 5.3)
  • Bass response not as strong as competitors

Decision guide

Which one should you buy?

Pick the one that matches your priorities, not the spec sheet.

Choose

Boult Audio Z40

If you want

  • Audio quality from DSEE upscaling and precision drivers matters to you
  • You listen in quiet spaces and want detailed, balanced sound
  • You value Sony's brand heritage and proven audio engineering
  • You charge earbuds regularly and 20hr battery is manageable

Choose

Sony WF-C500

If you want

  • 60hr battery for travel and marathon listening is your priority
  • Rs 799 fits your budget for functional wireless audio
  • You use earbuds for casual content - YouTube, podcasts, calls
  • Battery endurance during travel and power outages matters more than sound quality

Buying tip

The Sony WF-C500's 20hr total battery is its biggest weakness in India, where power outages and inconsistent charging access in public spaces make battery endurance critical. If you travel by Indian Railways frequently, the Boult's 60hr battery is not a luxury - it is a practical necessity.

Ready to decide?

Pick your winner and grab today's price

Boult Audio Z40

Boult Audio Z40

₹799

Buy on Amazon
Pick
Sony WF-C500

Sony WF-C500

₹4,030

Buy on Amazon

Quick answers

Frequently Asked Questions

Is Sony WF-C500 worth 5x the Boult Audio Z40 price with 3x less battery?

Only for dedicated music listeners in quiet environments. The Sony delivers audio quality the Boult cannot approach, but at Rs 4,030 with only 20hr battery and no ANC, it is a specialized product. The Boult at Rs 799 with 60hr battery is a general-purpose workhorse that handles everything acceptably.

Which survives a week-long trip without a charger?

The Boult Audio Z40 at 60hr can handle 4-5 days of moderate listening without charging. The Sony WF-C500 at 20hr runs dry in about 2 days. For backpacking trips, hill station vacations, or hostel weekends without reliable charging, the Boult's endurance is unmatched.

Which is better for casual YouTube and Instagram watching?

The Boult Audio Z40 at Rs 799 is more than sufficient for YouTube shorts, Instagram reels, and casual video content. The Sony's superior audio quality is wasted on compressed social media audio. Save the Rs 3,231 for casual content consumption.