If you want the longest total battery life and the lowest gaming latency on paper, the Boult Z40 Pro is the better pick. If you would rather have everyday convenience features, such as in-ear detection, officially listed dual-device connection, Spatial Audio and an app to remap controls, the boAt Airdopes 300 makes more sense. Neither has active noise cancellation (ANC), so if you ride a loud Metro or bus every day, both are compromises.
This comparison is based on official specifications and published reviews, as summarised in our individual reviews of each pair. It is not based on hands-on testing by gadgetsoch. Availability and prices on Amazon.in change often, so check the listing before you buy.
We compare the exact variants our links open: the Boult Z40 Pro (now sold under the GOBOULT name) in Lavender, and the boAt Airdopes 300 in Gunmetal Black. Other colours are separate listings.
Quick verdict: which one fits you
- Choose the Boult Z40 Pro if you want the biggest total playtime claim (up to 100 hours with the case), a lower 45ms gaming mode and IPX5 splash resistance.
- Choose the boAt Airdopes 300 if you want in-ear detection, officially listed dual-device connection, Spatial Audio, the boAt Hearables app and faster top-ups (10 minutes for up to 150 minutes, per boAt).
Boult Z40 Pro vs boAt Airdopes 300 specifications
| Specification | Boult Z40 Pro | boAt Airdopes 300 |
|---|---|---|
| Variant on our link | Lavender (ASIN B0CHVWYZV8) | Gunmetal Black (ASIN B0D3DH8TSC) |
| Drivers | 13mm BoomX (Boult’s page also mentions 10mm once) | 10mm dynamic drivers |
| Bluetooth | 5.3 | 5.3 with 10m range |
| Codecs | AAC and SBC | AAC and SBC |
| Total playtime with case | Up to 100 hours | Up to 50 hours |
| Single-charge earbud runtime | Not confirmed (reviews conflict) | Not confirmed |
| Fast charging | 10 minutes for 120 minutes | 10 minutes for up to 150 minutes |
| Full charging time | Not confirmed | About 30 minutes (earbuds) and about 1.5 hours (case) |
| Charging port | USB Type-C | USB Type-C |
| Microphones | Quad-mic ENC (Zen Mode) | 4 mics with AI ENx (one boAt FAQ says dual mics) |
| Active noise cancellation | No | No |
| Low-latency mode | 45ms | 65ms BEAST Mode |
| Water resistance | IPX5 | IPX4 (one boAt FAQ says IPX5) |
| In-ear detection | Not confirmed | Yes |
| Dual-device connection | Not officially listed | Yes |
| Companion app | Not officially listed | boAt Hearables (Android and iOS) |
| Spatial Audio | Not confirmed | Yes (toggle in the app) |
| Volume on the earbuds | Not in Boult’s control list | Not by default (can be assigned in the app) |
| Warranty | 1 year (per Boult) | 1 year (per boAt FAQ) |
Specifications come from the official Boult and boAt pages as summarised in our reviews. Where a brand’s own pages disagree, we have noted it rather than picking a number.
Battery life and charging
On paper this is a clear win for the Boult. Boult rates the Z40 Pro for up to 100 hours of total playtime, double the 50 hours boAt claims for the Airdopes 300. Both figures include the charging case, so they tell you how long you can go between plugging the case in, not how long you can listen in one sitting.
That single-charge figure is where caution is needed. Boult does not publish it, and published reviews disagree sharply: AudioPick reported a little over nine hours from one charge at roughly 70% volume, while MyMobile India’s summary gives only two to three hours per earbud charge. boAt also does not state single-charge runtime, and the battery capacities on boAt’s support page and in FoneArena’s launch report do not match. So for both pairs, per-charge endurance is unconfirmed.
Fast charging tilts the other way. boAt rates its ASAP Charge at up to 150 minutes of playback from a 10-minute charge, against Boult’s 120 minutes. boAt also lists full charging times (about 30 minutes for the earbuds, about 1.5 hours for the case), which Boult does not publish. Neither lists wireless charging, and boAt confirms the Airdopes 300 has none.
Better for whom: the Z40 Pro suits people who forget to charge their gadgets and want the case to last as long as possible. The Airdopes 300 suits people who top up in short bursts before leaving home.
Sound and codecs
Boult lists 13mm BoomX drivers for the Z40 Pro, although one line on its official page mentions 10mm, which looks like an error. boAt uses 10mm dynamic drivers with a stated 20Hz to 20kHz response. Driver size alone does not decide how earbuds sound, so treat this as a hint rather than a verdict.
For the Z40 Pro, the reviews we summarised describe the tuning differently. AudioPick calls it V-shaped with strong, thumpy bass suited to EDM and Bollywood, slightly recessed mids and boosted treble. MyMobile India describes a balanced soundstage with clear vocals and only decent bass. The safe reading is a lively, bass-forward budget sound that may need an equaliser if you like a neutral tone.
For the Airdopes 300, boAt markets “HiFi” sound with a dual-core processor, and FoneArena’s launch report mentions 24-bit audio processing. We found no independent measurement of its tuning. Its standout audio feature is Spatial Audio, switched on from the boAt Hearables app, which aims to make music and video sound wider. Some listeners prefer it off for music, so it is useful that it is a toggle.
Both support only AAC and SBC. AAC works well with iPhones and most recent Android phones. Neither lists LDAC or aptX, and boAt confirms aptX is not supported.
Better for whom: bass lovers may lean towards the Z40 Pro based on AudioPick’s description, while people who watch a lot of video may like the Airdopes 300’s Spatial Audio option. Neither has a confirmed sound advantage from independent testing.
Calls and noise handling
Neither pair has active noise cancellation. Both use four microphones for call noise reduction instead: Boult calls its system Zen Mode ENC, and boAt calls its version AI ENx. These clean up your voice for the person you are calling. They do not reduce traffic or crowd noise while you listen to music.
AudioPick reported that voices stayed clear on Z40 Pro calls even on busy streets, though heavy wind was not fully removed. For the Airdopes 300, we have no independent call test to point to. FoneArena and Gizmochina describe boAt’s system as using AI algorithms to isolate the speaker’s voice, but that is a description, not a test. One boAt FAQ also says the Airdopes 300 has dual microphones, which conflicts with the four-mic figure boAt repeats elsewhere.
Better for whom: if outdoor calls matter most, the Z40 Pro has at least one published review reporting clear calls. With the Airdopes 300, read recent buyer feedback on the listing before relying on it for work calls.
Gaming latency
Both have a low-latency mode. Boult rates the Z40 Pro at 45ms, while boAt rates BEAST Mode on the Airdopes 300 at 65ms. Lower is better, because latency is the delay between something happening on screen and you hearing it.
AudioPick reported almost no noticeable delay on the Z40 Pro in BGMI and Call of Duty Mobile, with lag only creeping in under Bluetooth interference. boAt’s own support page describes BEAST Mode as suited to entertainment and casual gaming, not professional gaming. Remember that both figures are best-case numbers, and your phone and the wireless environment can add delay.
Better for whom: mobile gamers should lean towards the Boult Z40 Pro for its lower claimed latency. For watching videos and casual games, both are fine.
Controls, app and connectivity
This is where the Airdopes 300 pulls ahead. boAt officially lists in-ear detection (on by default, so music pauses when you remove an earbud), dual-device connection for a phone and a laptop, IWP instant pairing when you open the case, and mono use of either earbud. The boAt Hearables app lets you remap single and double taps to volume, track control, BEAST Mode or voice assistant. It also shows battery level for each earbud and delivers software updates.
Boult’s official controls for the Z40 Pro are simple: double tap either earbud to play or pause, and long-press left or right for two seconds to change tracks. Volume is not in the list. Reviewers disagree on the rest. AudioPick found the touch controls reliable, mentions an Android companion app and reports connecting to a phone and a laptop together. MyMobile India calls the touch controls inconsistent and lists the lack of a pairing app as a drawback. Boult’s own page mentions neither an app nor dual-device connection, so do not buy the Z40 Pro counting on them.
Better for whom: if you switch between a phone and a laptop all day, or want volume on the earbuds, the Airdopes 300 is the safer choice because these features are officially listed.
Build, water resistance and warranty
The Z40 Pro is rated IPX5, a step above the Airdopes 300’s IPX4. Both cover sweat and splashes, so either is fine for workouts and light rain, but neither should be submerged. boAt advises against using the Airdopes 300 in the shower or while swimming. One boAt FAQ mentions IPX5, but the main specification list, the Amazon title and launch coverage say IPX4, so treat IPX4 as correct.
Reviewers praise the Z40 Pro’s rubber grip case for resisting slips and fitting in a pocket, though MyMobile India notes the slightly glossy earbuds can pick up scratches. boAt includes a silicone case cover and extra ear tips in the Airdopes 300 box, while Boult does not publish box contents for the Z40 Pro.
Both carry a 1-year warranty. boAt’s extra 3 months applies only to purchases from boAt’s own website or app, not Amazon orders. For either pair, buy from a seller that issues a GST invoice.
Better for whom: gym users get a small edge with the Z40 Pro’s IPX5 rating, while buyers who like a known box bundle get more clarity with the Airdopes 300.
Who should buy which
Buy the Boult Z40 Pro if total battery life, a 45ms gaming mode and IPX5 matter more to you than smart features. It suits students, commuters and casual mobile gamers who rarely want to charge the case. Read our full Boult Z40 Pro review, or check the current price of the Boult Z40 Pro (Lavender) on Amazon.in.
Buy the boAt Airdopes 300 if you want in-ear detection, dual-device connection, Spatial Audio and an app to remap controls, and can accept half the total playtime claim. It suits office-goers and video watchers who move between a phone and a laptop. Read our full boAt Airdopes 300 review, or check the current price of the boAt Airdopes 300 (Gunmetal Black) on Amazon.in.
If you need ANC for flights, Metro rides or open offices, skip both. Our individual reviews list ANC alternatives from Boult, boAt, realme and OnePlus.
Frequently asked questions
Does either the Boult Z40 Pro or the boAt Airdopes 300 have ANC?
No. Both use four-mic noise reduction for calls only (Zen Mode ENC on Boult, AI ENx on boAt). Outside noise while listening is reduced only by the ear-tip seal.
Which has better battery life?
The Boult Z40 Pro has the bigger total claim, up to 100 hours with the case against 50 hours for the Airdopes 300. Single-charge runtime is not confirmed for either, and boAt’s fast charge is rated higher (up to 150 minutes from 10 minutes, against Boult’s 120 minutes).
Which is better for mobile gaming?
The Boult Z40 Pro, on paper. It claims 45ms latency against the Airdopes 300’s 65ms, and AudioPick reported almost no noticeable delay in BGMI and Call of Duty Mobile. Actual latency depends on your phone and surroundings.
Can I connect either pair to a phone and a laptop at once?
boAt officially lists dual-device connection for the Airdopes 300. Boult’s official page does not mention it for the Z40 Pro, even though one review reported it working, so treat it as unconfirmed.
Do both work with an iPhone?
Yes. Both support AAC, which iPhones use for Bluetooth audio. Boult lists Android and iOS compatibility, and the boAt Hearables app is available on Android and iOS.
Our full reviews
- Boult Z40 Pro review: 100-hour earbuds, explained before you buy
- boAt Airdopes 300 review: 50-hour battery, Spatial Audio, no ANC
In short, the Z40 Pro is the battery and gaming pick, and the Airdopes 300 is the convenience pick. Whichever you choose, confirm the colour and model on the listing before ordering: Boult Z40 Pro on Amazon.in or boAt Airdopes 300 on Amazon.in.
Related reading on GadgetSoch: boAt Airdopes 141 ANC vs realme Buds T310: Which Budget ANC Earbuds Should You Buy? and Best Budget TWS Earbuds in India: ANC and Non-ANC Picks.
