Saturday, 24 October 2026

boAt Nirvana X TWS Review: LDAC, Knowles Dual Drivers and What the Listing Leaves Out

The boAt Nirvana X TWS (Cosmic Onyx) lists LDAC, Knowles-enabled dual drivers, four-mic AI-ENx and Mimi Adaptive EQ. Here is who it suits, and which specs to confirm before you buy.
By Gadget Soch··10 min read
Cover graphic: boAt Nirvana X TWS Review: LDAC, Knowles Dual Drivers and What the Listing Leaves Out

The boAt Nirvana X TWS is boAt’s feature-heavy true wireless earbud aimed at listeners who want more than basic Bluetooth sound: the Amazon.in listing highlights Knowles-powered dual drivers, LDAC Hi-Res Audio, four microphones with AI-ENx call noise reduction, dual pairing, spatial audio and personalised Adaptive EQ by Mimi. In short, it makes the most sense for Android phone owners whose handset supports LDAC and who care about sound tuning and call clarity more than about the lowest possible price.

This article covers the Cosmic Onyx colour variant (ASIN B0DQKY3R84), the exact listing our Amazon link opens. It is based on the Amazon.in listing data and published launch coverage, checked on 17 October 2026, not on hands-on testing. boAt’s own product page could not be opened when we checked, so some key numbers, especially battery life and the exact noise-cancellation rating, are flagged below as unconfirmed.

Our short verdict: the Nirvana X has an unusually strong feature list on paper for a boAt earbud, but the listing leaves important gaps. Confirm battery life, Bluetooth version and water-resistance rating on boAt’s site or the product box before you rely on them.

Quick verdict

  • Best for: Android users with LDAC-capable phones who stream high-quality music and want an app with personalised EQ
  • Also good for: people who switch between a phone and a laptop, thanks to the dual-pairing feature named in the listing title
  • Skip if: you use an iPhone and mainly want LDAC (iPhones do not support LDAC), or you need a confirmed IP rating for heavy workouts
  • Key strengths (as listed): Knowles-enabled dual-driver setup, LDAC, four mics with AI-ENx, Mimi Adaptive EQ, in-ear detection, spatial audio, fast charge
  • Key limitations: battery life, Bluetooth version and IP rating are not stated on the Amazon listing, and the listing is inconsistent about the type of noise control

Check the current price of the boAt Nirvana X TWS (Cosmic Onyx) on Amazon.in

boAt Nirvana X TWS: key specifications

boAt Nirvana X key specs at a glance
boAt Nirvana X key specifications, summarised from the table in this review.
SpecificationDetails (source)Notes
ModelboAt Nirvana X TWSModel series Nirvana (listing)
Colour (this link)Cosmic OnyxConfirm the colour on the listing before ordering
Drivers10 mm drivers plus two Knowles-enabled drivers (listing bullet)Listing technical table names the driver type as balanced armature
CodecLDAC Hi-Res Audio (listing)Other codecs not listed
Microphones4 mics with AI-ENx (listing)For call noise reduction
Noise controlListed as Active Noise Cancellation in one field and environmental noise cancellation in anotherANC depth not stated, treat as unconfirmed
Sound featuresSpatial Audio, Adaptive EQ by Mimi, boAt HiFi Sound (listing)Via app support
ConvenienceIn-ear detection, dual pairing, fast charge (listing)Fast charge figure not stated
Frequency range20 Hz to 20 kHz (listing)Standard audible range
Water resistanceWater resistant (listing)No IP rating given
Battery lifeNot stated on the listingFoneArena’s launch headline mentions up to 40 hours total, unconfirmed by us
Weight45 grams (listing)Listing does not say whether this includes the case
In the boxUser manual, TWS earbuds, additional earbuds (listing wording), charging cableLikely extra ear tips, confirm on delivery
Warranty1 year (listing)Register with boAt for service
Country of originIndia (listing)Marketed by Imagine Marketing Ltd.

The dual-driver setup, explained in plain words

Most budget and mid-range earbuds use a single dynamic driver in each bud, a small cone that has to cover bass, vocals and treble all at once. The Nirvana X listing describes a different approach: a 10 mm driver alongside two Knowles-enabled drivers. Knowles is a long-established maker of balanced armature drivers, which are tiny components often used in in-ear monitors to reproduce detail in the mid and upper frequencies. The listing’s technical table also names the driver type as balanced armature.

Why this matters in practice: a hybrid setup splits the work, so the larger driver can focus on low-end weight while the smaller drivers handle detail. When it is tuned well, this can make vocals and instruments sound more separated. The listing says the Knowles drivers are tuned toward a “preferred listening curve”, which is a marketing description rather than a measured result. Treat it as an intention, not a guarantee.

LDAC: who actually benefits

LDAC is a Bluetooth codec developed by Sony that can carry much more audio data than the basic SBC codec. The Amazon listing presents it as Hi-Res Audio support. The practical catch is compatibility. LDAC only works when both the earbuds and the phone support it. Many Android phones include LDAC, but Apple’s iPhones do not, so an iPhone will fall back to a more basic codec.

Even on Android, you usually need to enable LDAC or choose a quality-priority mode in Bluetooth or developer settings, and the gain is most noticeable when you stream high-quality or lossless files in a quiet place. If most of your listening is regular streaming on a train, LDAC is a bonus, not the reason to buy.

Spatial audio and Adaptive EQ by Mimi

The listing title mentions spatial audio, which typically widens the sound so it feels less “inside your head” for films and some music. The listing gives no detail on head tracking, so do not assume it is included. Adaptive EQ by Mimi is more interesting: according to the Amazon listing, you set up a hearing profile and the earbuds personalise the sound for you. In general, Mimi-style systems run a short hearing test and adjust frequencies you hear less clearly, which can make content clear at lower volumes. That is a genuinely useful feature if you tend to turn the volume up too high.

Calls and noise control: read the listing carefully

For calls, the listing describes four microphones with AI-ENx technology, meant to reduce background noise so the person you are speaking with hears your voice more clearly, indoors and outdoors. Four mics is a reasonable setup for this, though no independent call test was available to us.

Noise cancellation for your listening is less clear. One field on the Amazon listing says “Active Noise Cancellation”, while another names “environmental noise cancellation”, which normally refers to call-mic processing. The bullet points focus on ENx for calls and do not give an ANC depth in decibels. Croma’s launch coverage headline describes “AI noise cancellation”, which does not settle the question either. If blocking out bus or office noise is your main goal, check boAt’s official page or the box for an ANC rating before ordering. If you only need clear calls, the four-mic ENx system is the relevant feature.

Battery, charging and daily convenience

The Amazon listing does not state battery life. A search result for FoneArena’s launch report carries the headline “boAt Nirvana X with LDAC, up to 40h total playback launched”, but we could not open the article or boAt’s page to confirm the figure or the conditions behind it. Keep in mind that total playback figures usually include case recharges and are measured at moderate volume, and that using LDAC or any noise control generally reduces battery life compared with basic settings.

The listing title mentions fast charge without giving a figure. Two everyday features are better defined. In-ear detection pauses playback when you take a bud out and resumes when you put it back, according to the listing. Dual pairing, named in the title, lets the earbuds stay connected to two devices, handy if you take calls on your phone while working on a laptop. Check the boAt app or manual for how LDAC interacts with dual pairing, as some earbuds limit one when the other is on.

Who should buy it

Who should buy the boAt Nirvana X
Who the boAt Nirvana X suits, summarised from this review.
  • Android users whose phone supports LDAC and who listen to good-quality music files
  • Listeners who want app-based EQ, including a personalised hearing profile
  • People who take many calls and want a four-mic setup
  • Laptop-and-phone users who will actually use dual pairing

Who should skip it

  • iPhone users buying mainly for LDAC
  • Anyone who needs strong, confirmed ANC for flights or loud commutes
  • Gym and outdoor users who need a specific IP rating, since the listing only says “water resistant”
  • Buyers who want everything confirmed in writing before purchase, as several key specs are missing from the listing

Alternatives worth comparing

These alternatives come from our earlier reviews, which used each brand’s official figures.

  • realme Buds Air7: LHDC 5.0 Hi-Res codec instead of LDAC, up to 52dB ANC according to realme, 12.4mm driver and IP55. A good choice if confirmed ANC matters to you. Read our realme Buds Air7 review
  • OnePlus Nord Buds 3: up to 32dB ANC (OnePlus lab figure), AAC and SBC codecs, up to 43 hours with the case with ANC off, and IP55 on the earbuds
  • realme Buds T310: hybrid ANC up to 46dB, SBC and AAC, up to 40 hours with the case with ANC off, and dual-device connection, for buyers who value ANC over high-resolution codecs

If you are still deciding between price tiers, our guide to budget TWS earbuds in India groups options by ANC and non-ANC.

What to check before you order

boAt Nirvana X buying checklist
What to check before you buy the boAt Nirvana X.
  • Variant: our link is for the Cosmic Onyx colour. Confirm the colour and model name Nirvana X TWS on the product page before you add it to your cart
  • Phone compatibility: check your phone’s Bluetooth settings for LDAC. Without it, you will not get the Hi-Res Audio benefit
  • Box contents: the listing mentions a user manual, the earbuds, “additional earbuds” and a charging cable. A power adapter is not listed
  • Warranty: the listing states 1 year. Keep the invoice and register the product with boAt for service in India
  • Missing specs: confirm battery life, Bluetooth version, IP rating and ANC depth on boAt’s official page

When you are ready, see the boAt Nirvana X TWS in Cosmic Onyx on Amazon.in and compare the specifications shown there with boAt’s official page.

Frequently asked questions

Does the boAt Nirvana X TWS support LDAC on iPhone?

No. LDAC requires support on both devices, and iPhones do not support LDAC. The earbuds should still connect to an iPhone over a standard Bluetooth codec, but you will not get LDAC-level quality.

Does the Nirvana X have active noise cancellation?

The Amazon listing is inconsistent. One field says Active Noise Cancellation, another says environmental noise cancellation, and no ANC depth is given. Confirm on boAt’s official page if ANC is important to you.

What is the battery life of the boAt Nirvana X?

The Amazon listing does not state it. FoneArena’s launch headline refers to up to 40 hours of total playback, which we could not verify directly. Treat it as a launch figure, likely measured under ideal conditions.

Can I connect the Nirvana X to two devices at once?

The listing title mentions dual pairing, so it should stay connected to two devices, such as a phone and a laptop. Check the manual for any limits when LDAC is enabled.

Final word

The boAt Nirvana X TWS stands out on paper for its Knowles-enabled dual drivers, LDAC support and Mimi-based personalisation, which are features usually seen on pricier earbuds. Its weak spot is not a known flaw but missing information: battery life, IP rating and the exact noise-cancellation spec are not on the Amazon listing. If you own an LDAC-capable Android phone and those details check out on boAt’s page, it is worth a close look. Check the current price of the boAt Nirvana X TWS on Amazon.in.

Related reading on GadgetSoch: boAt Bassheads 152 Review: Wired Earphones With Mic, Specs and Limits and Noise Buds VS201 V3 Review: 60-Hour Claimed Battery, Dual EQ and the Trade-offs.

Sources

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