Boult Audio Z40 vs Sony WF-C500
An in-depth comparison to help you choose the right Wireless Earbuds for your needs.
Boult Audio
₹799
Sony
₹4,030
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.
Head-to-Head
How each product stacks up across key dimensions
Product A
Boult Audio Z40
4
wins
Product B
Sony WF-C500
2
wins
₹799
₹4,030
4.1 / 5
4.3 / 5
81/100
84/100
Popular
2,876 reviews
10mm Drivers
5.8mm Driver Unit
Up to 60 hours (with case)
Up to 20 hours (with case)
Quick Summary
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.
Our Recommendation
Best Overall
Sony WF-C500
₹4,030
|4.3/5 rating
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.
The products
Boult Audio
Boult Audio Z40
Inclusive of all taxes
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
Sony
Sony WF-C500
Inclusive of all taxes
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.
Key Differences
The most important things that set these products apart
₹3,231 price difference
Boult Audio Z40The 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-C500With 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 Z40The 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 Z40The 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 Z40The Boult Audio Z40 leads in bluetooth version with 5.2 compared to 5.0.
Detailed Specifications
| Specification | Boult Audio Z40 | Sony WF-C500 |
|---|---|---|
| Price | ₹799 | ₹4,030 |
| Rating | 4.1 / 5(4,821) | 4.3 / 5(2,876) |
| Driver Size | 10mm Drivers | 5.8mm Driver Unit |
| Battery Life | Up to 60 hours (with case) | Up to 20 hours (with case) |
| Active Noise Cancellation | No ANC (Zen ENC for calls) | No ANC |
| Bluetooth Version | 5.2 | 5.0 |
| Water Resistance | IPX5 | IPX4 |
| Charging Type | USB Type-C Fast Charging | USB Type-C |
| Microphones | Quad Mic with Zen ENC | Built-in Mic |
| Weight | 4.5g per earbud | 5.4g per earbud |
Indicates better value in this category
Pros & cons
Boult Audio Z40
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
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
Which One Should You Buy?
Pick the one that matches your priorities
Choose Boult Audio Z40 if
- 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
- 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
₹799
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.
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