Boult Z40 vs boAt Airdopes 311 PRO: Which TWS Earbuds Should You Buy?

Choosing between affordable wireless earbuds can be confusing, especially when two models offer similar features and are aimed at the same type of buyer.

The Boult Audio Z40 and boAt Airdopes 311 PRO are two popular budget TWS options that focus on battery life, bass-heavy audio, calling and gaming.

Both earbuds use 10mm drivers and Bluetooth 5.3, but there are important differences in battery backup, water resistance, microphone setup, charging and gaming features. The Z40 offers up to 60 hours of total playback, while the Airdopes 311 PRO is rated for up to 50 hours.

So, Boult Z40 vs boAt Airdopes 311 PRO — which one is better?

Let's compare them feature by feature.

Boult Z40 vs boAt Airdopes 311 PRO: Quick Comparison

Feature	Boult Z40	boAt Airdopes 311 PRO
Driver	10mm	10mm
Bluetooth	5.3	5.3
Total playback	Up to 60 hours	Up to 50 hours
Gaming latency	Adaptive Low Latency	50ms BEAST Mode
Microphones	Quad mic ENC	Dual mic ENx
Noise cancellation	Zen ENC	ENx
Water resistance	IPX5	IPX4
Fast charging	10 min = up to 100 min	10 min = up to 150 min
Charging	Type-C	Type-C
EQ modes	HiFi, Bass Boost, Rock	Adaptive EQ
Audio codecs	AAC, SBC	Not specified on official product page
App	GoBoult Amp	boAt Hearables app/support
Best suited for	Battery + everyday use	Gaming + quick charging

Specifications are based on the manufacturers' current product information.

Design and Build Quality

Both the Boult Z40 and boAt Airdopes 311 PRO use a compact true wireless design.

The Airdopes 311 PRO has a transparent minimalist design, while the Z40 follows a more conventional compact TWS design.

For everyday use, both are easy to carry and suitable for music, calls, videos and gaming.

One difference is water resistance.

The Boult Z40 carries an IPX5 rating, while the Airdopes 311 PRO has an IPX4 rating.

This gives the Z40 an advantage if you want additional protection against sweat and water splashes.

Neither should be treated as a swimming earbud.

Sound Quality: Boult Z40 vs Airdopes 311 PRO

Both models use 10mm drivers, so neither is relying on a tiny driver setup.

The Boult Z40 uses 10mm Boom X technology drivers and offers three EQ modes: HiFi, Bass Boost and Rock.

The boAt Airdopes 311 PRO uses 10mm drivers with boAt Signature Sound and Adaptive EQ modes. boAt describes its tuning as providing deep bass and immersive audio.

Which has better sound?

This is more about personal preference.

If you enjoy a bass-heavy sound and want multiple manually selectable EQ profiles, the Boult Z40 is appealing.

If you prefer boAt's Signature Sound tuning and Adaptive EQ approach, the Airdopes 311 PRO is also worth considering.

For Bollywood, pop, hip-hop and EDM, both should be suitable for listeners who prefer an energetic sound.

Sound Quality Winner: Boult Z40

The Z40 gets a slight advantage because it offers three selectable EQ modes, giving users more control over the sound profile.

Battery Backup

Battery life is one of the clearest differences between these two earbuds.

The Boult Z40 offers up to 60 hours of total playback, including the charging case.

The boAt Airdopes 311 PRO offers up to 50 hours of total playback.

That gives the Z40 a 10-hour advantage in the manufacturers' advertised total playback figures.

Boult Z40

• Up to 60 hours total playback
• Type-C charging
• 10-minute charge provides up to 100 minutes of playback

boAt Airdopes 311 PRO

• Up to 50 hours total playback
• Type-C charging
• 10-minute ASAP Charge provides up to 150 minutes of playback

Battery Winner: Boult Z40

For maximum overall battery capacity, the Boult Z40 wins with its advertised 60-hour total playback.

However, boAt has an interesting advantage in quick charging.

Fast Charging

This category is closer than it first appears.

The Boult Z40 can provide up to 100 minutes of playback after a 10-minute charge.

The Airdopes 311 PRO's ASAP Charge technology is rated for up to 150 minutes of playback from a 10-minute charge.

Therefore, if you frequently forget to charge your earbuds and need a quick top-up, the Airdopes 311 PRO has the stronger advertised fast-charging figure.

Fast Charging Winner: boAt Airdopes 311 PRO

Gaming Performance

Gaming is another important difference.

The Boult Z40 includes Adaptive Low Latency mode.

The boAt Airdopes 311 PRO has BEAST Mode with 50ms low latency. boAt specifically positions the feature for gaming and entertainment.

boAt's own support documentation describes the 50ms low-latency feature as suitable for entertainment and casual gaming, while noting that the product isn't intended as professional gaming equipment.

Which is better for gaming?

For buyers who want a clearly specified latency figure, the Airdopes 311 PRO has an advantage because boAt explicitly lists 50ms low latency.

The Z40 officially lists Adaptive Low Latency, but the current standard Z40 product page does not provide a specific latency number.

Gaming Winner: boAt Airdopes 311 PRO

For casual BGMI, Free Fire, Call of Duty Mobile and similar games, both can be useful.

For serious competitive gaming, neither should be considered a replacement for dedicated gaming audio equipment.

Calling Quality

Calling is another area where both earbuds take different approaches.

The Boult Z40 features a quad-microphone setup with Zen Environmental Noise Cancellation.

The Airdopes 311 PRO uses dual microphones with ENx Technology. boAt says the microphones are designed to suppress background noise during calls.

On paper, the Z40 has the more extensive microphone setup.

However, microphone count alone doesn't guarantee better call quality. Actual results can vary depending on the environment, smartphone and Bluetooth connection.

Calling Winner: Boult Z40

For buyers who specifically prioritize the microphone setup and environmental-noise reduction features, the Z40 has the stronger specification on paper.

Water and Sweat Resistance

The Boult Z40 carries an IPX5 rating, whereas the Airdopes 311 PRO has IPX4 protection.

Both can be suitable for everyday workouts and normal sweat exposure.

The Z40's higher IP rating gives it the advantage here.

Water Resistance Winner: Boult Z40

Connectivity

Both earbuds use Bluetooth 5.3.

The Z40 supports AAC and SBC codecs and is compatible with Android and iOS.

The Airdopes 311 PRO also uses Bluetooth 5.3 and is designed for everyday smartphone connectivity.

For normal music, calls and gaming, there isn't a major reason to choose one purely because of Bluetooth version.

Connectivity Winner: Tie

Which Has Better Calling Features?

The Boult Z40 has:

• Quad-mic setup
• Zen Environmental Noise Cancellation
• Bluetooth 5.3

The Airdopes 311 PRO has:

• Dual microphones
• ENx Technology
• Bluetooth 5.3

The Z40 has more microphones on paper, while both brands use environmental-noise reduction technology for calls.

For users who make frequent phone or WhatsApp calls, I'd give the Boult Z40 a slight advantage based on its hardware specification.

Which Is Better for Movies and YouTube?

Both are suitable for video streaming.

The 10mm drivers on both models provide enough audio output for movies, YouTube videos and other entertainment.

The Airdopes 311 PRO's 50ms BEAST Mode is also advertised for entertainment, not just gaming.

If you frequently watch videos where audio synchronization matters, both models have features aimed at reducing latency.

Entertainment Winner: Tie

Which Is Better for Students?

Both can work well for students.

You can use either pair for:

• Online classes
• YouTube
• Music
• Gaming
• Phone calls
• Video calls
• Podcasts

The Z40 has the longer overall battery rating, while the Airdopes 311 PRO offers faster advertised quick charging.

Student Choice: Boult Z40

For students who don't want to charge their earbuds frequently, the Z40's 60-hour total playback gives it an advantage.

Which Is Better for Travel?

The Boult Z40 is the stronger choice if your priority is maximum total battery life.

Its advertised 60-hour playback gives it an advantage over the Airdopes 311 PRO's 50-hour rating.

However, the boAt model can be attractive for travellers who frequently need a quick top-up because its 10-minute ASAP Charge claim reaches up to 150 minutes.

Travel Winner: Boult Z40

Boult Z40 vs boAt Airdopes 311 PRO: Feature-by-Feature Winner

Category	Winner
Sound customization	Boult Z40
Battery backup	Boult Z40
Fast charging	boAt Airdopes 311 PRO
Gaming	boAt Airdopes 311 PRO
Calling hardware	Boult Z40
Water resistance	Boult Z40
Bluetooth	Tie
Movies & videos	Tie
Travel	Boult Z40
Overall versatility	Boult Z40

Boult Z40 vs boAt Airdopes 311 PRO: Which One Should You Buy?

The answer depends on what matters most to you.

Choose Boult Z40 if:

• You want longer battery life
• You want up to 60 hours of total playback
• You prefer multiple EQ modes
• You want a quad-mic ENC setup
• You want IPX5 water resistance
• You want earbuds for music, calls and gaming
• You want a more versatile all-rounder

Choose boAt Airdopes 311 PRO if:

• Gaming is an important priority
• You specifically want 50ms BEAST Mode
• You value fast charging
• You like boAt's Signature Sound
• You want 150 minutes of advertised playback from a 10-minute charge
• You prefer the boAt ecosystem

Boult Z40 vs boAt Airdopes 311 PRO: Final Verdict

Both the Boult Z40 and boAt Airdopes 311 PRO are strong options in the affordable TWS category, but they appeal to slightly different buyers.

The Boult Z40 is the better all-rounder if your priorities are battery life, calling features, water resistance and sound customization. It offers up to 60 hours of total playback, 10mm drivers, quad-mic Zen ENC, IPX5 protection and Adaptive Low Latency.

The boAt Airdopes 311 PRO is particularly attractive for casual gamers and users who value quick charging. It offers 50ms BEAST Mode, 50 hours of total playback, dual-mic ENx technology and ASAP Charge with up to 150 minutes of playback from 10 minutes of charging.

Boult Z40 Price

boAt Airdopes 311 PRO

Overall Winner: Boult Z40

If you're looking for one pair of affordable TWS earbuds that can handle music, calls, gaming, travel and everyday entertainment, I'd pick the Boult Z40.

If gaming latency and fast charging are your two biggest priorities, the boAt Airdopes 311 PRO becomes the more interesting choice.

Before purchasing, compare the latest listing, warranty and seller details on your preferred retailer because prices and offers can change frequently.

Specifications can change between product revisions or variants. This comparison uses the current manufacturer specifications available for the standard Z40 and Airdopes 311 PRO.