OnePlus Buds 4 have finally made it to India in July this year. And, they look nothing like their predecessor. For the all-new Buds, OnePlus seems to have gone back to the drawing board and redesigned the entire product, rather than using the same design and adding some upgrades.
Its predecessor, the Buds 3, was launched in January 2024, so we can say OnePlus delayed the launch of the Buds 4 by a few months. However, this delay could be linked to keeping the TWS launch in sync with the new Nord devices – the Nord 5 and Nord CE 5.
The best thing is that OnePlus has managed to keep the price in check, keeping it under Rs. 6,000. For comparison, the Buds were launched in India last year at Rs. 5,499. This suggests that OnePlus aims to maintain its market share in the sub-Rs. 6,000 TWS price segment with its non-Pro buds model. On paper, the Buds 4 is filled to the brim with features that you usually get in a higher price segment, so should you invest in these TWS? I try to answer that in my review.
OnePlus Buds 4 Review: Design is chunky
- Dimensions: Earbuds – 31×20.6×4.2mm
- Charging case – 65.4×52.4×25.3mm
- Weight: Earbuds – 4.73g, charging case – 39.57g, and total – 49g
- Colours: Zen Green and Storm Grey
The OnePlus Buds 4 look nothing like its predecessor, the Buds 3, and that’s not a deal breaker in any way. It takes some inspiration from the Buds Pro 3 and previously released Nord TWS models. The minimalist design of the Buds 4 looks great at first look, and the design change seems more of an upgrade than anything else. The metallic texture with a matte finish gives it a more premium look. OnePlus says that it has used a non-conductive vacuum metallisation (NCVM) coating on the Buds 4 casing and buds. Additionally, the OnePlus engraving has been done using a CO2 laser. All of this makes the Buds 4 look stylish, vibrant and sophisticated.
In the retail box, you get the Buds along with a charging case, Type-C Charging Cable, ear tips, user Manual, Safety and Warranty card
Available in Storm Grey and Zen Green colours, OnePlus has gone with a more muted colour choice that may look fresh for a longer period. For my review, I got the Zen Green colour model, and it looks good. The case lid is easy to open with just one hand; however, due to its texture, it tends to become slippery when operated with one hand. The oval-shaped case feels chunky in the pocket and doesn’t feel as light to carry as the Buds 3.
The stem and ear tip designs are completely revamped and, much like the case, are chunkier. The stem is thick and is easy to hold compared to the Buds 3’s stem. Thanks to a thicker stem design, OnePlus has added swipe gesture controls on the stem for adjusting volume. You can also long-press on the stem to toggle between ANC and transparency modes. Additionally, you can also tap on the stem to play, pause or skip tracks. Notably, you can customise these settings in the HeyMelody app on non-OnePlus devices.
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The earbuds are lightweight and weigh 4.73 grams each
Overall, the OnePlus Buds 4 offer a good, lightweight design for daily use. However, the design is a mixed bag for me, as I prefer the Buds 3 design over the oval-shaped Buds 4 design.
OnePlus Buds 4 Review: App support and specifications
- App support: HeyMelody app (non-OnePlus devices)
- IP Rating: IP55-rated water and dust resistance
- Connectivity: Bluetooth 5.4 (effective distance 10m)
The OnePlus Buds 4 supports the HeyMelody app for non-OnePlus devices. If you’re using an OnePlus device, you will have all app features built into the phone’s Bluetooth settings. The HeyMelody app is familiar, and all the OnePlus audio devices I have previously reviewed have used this app. The UI is simple, with options for noise control upfront, alongside OnePlus 3D Audio and Sound Master equaliser settings, all just one tap away. The Buds 4 support dual connection, which means it can connect to two devices at the same time and can switch between them easily.
The HeyMelody app also offers additional features, such as an earbud fit test that checks whether the ear tips create a good seal with your ear canal for improved noise cancellation. There’s also a Golden Sound feature available in the app that creates studio-quality sound customised to your ear canal structure and hearing characteristics. There’s also a dedicated Game mode that syncs with audio and video on the device to reduce game lag for a smoother experience.
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In the box, the Buds 4 offer different ear tip sizes – S, M and L pairs with M being pre-installed
For ANC, the Buds 4 offer four settings: Noise Cancellation, Adaptive, Transparency, and Off. I preferred Adaptive during the review and will discuss the quality in a bit. Out of all the apps I have seen for various TWS, the HeyMelody app has the best UI and is also clutter-free, with unnecessary options removed. It leans towards a more custom option, which looks good and works in favour of the OnePlus audio products.
Listing highlight specs, the OnePlus Buds 4 get an 11mm woofer and a 6mm tweeter. It features IP55-rated water and dust resistance, and is designed for hard-core gamers, supporting 47ms ultra-low latency. It gets Bluetooth 5.4 and LHDC 5.0 support. It also features an AI Translation function that works exclusively with a OnePlus smartphone. The Buds 4 also get Google Fast Pair and dual-device connection. For regular calls, the TWS features a triple microphone setup and a wind noise suppression function in the background.
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For non-OnePlus devices, HeyMelody is the companion app for both Android and iOS users
OnePlus Buds 4 Review: Performance and battery life
- Drivers: 11mm woofer and 6mm tweeter
- Features: Active Noise Cancellation (ANC) with noise reduction depth of up to 55dB
- Codec support: LHDC 5.0 / AAC / SBC
- Battery Capacity: Earbuds – 62mAh and Charging Case – 530mAh
The Buds 4 offer one of the best ANC experiences in this price bracket, setting a benchmark. OnePlus claims that the TWS can reduce noise by up to 55dB and features a wide frequency range of 5500Hz. In real-world usage, the Buds 4 do a great job of noise cancellation in various background settings. Out of the three active ANC settings, Adaptive is the one that was my favourite during the review and was smart enough to adapt to the surroundings.
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The Buds 4 support Google Fast Pair and dual-device connection
With ANC enabled and set to Adaptive, I could barely hear the fan and AC noise in my room. However, when I was talking with someone, I could still listen to the person talking to me without having to unplug the buds—a very smart implementation of the Adaptive setting on the Buds 4 by OnePlus. While commuting with ANC on was my default combination during the review, as it completely suppresses ambient street noise. I can confidently say that the Buds 4 ANC’s performance was on par with that of the Buds 3 Pro, a higher-priced TWS.
Talking about sound quality, the Buds 4 excel here as well, almost. The TWS offers enough punch, depth and clarity. The default equaliser setting is mostly balanced, though slightly leaning towards bass. Testing tracks like Queen – Bohemian Rhapsody, which features complex vocal harmonies and plenty of instruments, the Buds 4 does well in handling quiet to loud transitions and also handles separation swiftly. Then, on Adele’s Someone Like You, the TWS manages to keep the focus on vocal clarity and subtle nuances in her voice.
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The charging case takes about 90 minutes to charge from 0 to 100%
Similarly, Don’t Know Why by Norah Jones has beautifully recorded vocals and acoustic guitar. The Buds 4 manage to keep the naturalness, warmth, and detail in the midrange. It, however, doesn’t beat the OnePlus Buds Pro 3 or Realme Buds Air 7 Pro – both of which did better. Lastly, I tried a Hans Zimmer classic, Mountains from the Interstellar soundtrack, which offers orchestral pieces, and Buds 4 does well with wide soundstages and good instrument separation. All in all, you won’t be disappointed by the sound quality of the Buds 4, especially considering these are TWS priced under Rs. 6,000.
The OnePlus Buds 4 are excellent for calls and pack a good set of microphones. The voice is clear on calls when using Buds 4, and the TWS can handle a mildly noisy environment promptly during calls without needing to switch to ANC manually. However, on the streets, you’ll hear background noise on the call, and Buds do not take care of everything efficiently. For gaming, the TWS is good enough and handles latency as advertised.
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The Buds 4 come with an 11mm woofer and a 6mm tweeter
Coming to battery life, the Buds 4 is claimed to offer playback of up to 11 hours on earbuds and when used with the case to up to 45 hours with ANC off and 50% volume. The battery performance drops to 6 hours on earbuds and up to 24 hours with the case when ANC is on and at 50% volume. In real-world usage, the Buds 4 offer a solid battery life, allowing for up to 7 hours of playback (with ANC on and at 50% volume) with just the earbuds and more than 30 hours with the charging case. For those unaware, sticking to the AAC codec is great for battery life while there’s LHDC support, but Buds 4 battery performance drops considerably.
It also gets fast-charging support with a 10-minute charge offering more than 3 hours of playback. The charging case takes about 90 minutes to charge fully. Unfortunately, there’s no wireless charging support.
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The charging case packs a 530mAh battery
OnePlus Buds 4 Review: Verdict
At Rs. 5,999, the OnePlus Buds 4 come out as a solid option under Rs. 6,000. The TWS offers a comprehensive set of features, and its traditional in-ear design provides a more snug fit compared to the Buds 3 design. Additionally, the companion app supports features like the Golden Sound experience, where users can map their ear canals for a more personalised audio experience. The TWS offers an excellent three-mic setup that’s great for calls. The battery life is fantastic and consistently delivers good battery performance. The sound quality is mostly balanced and should be liked by consumers in this price bracket.
Of course, the design is something that might not be liked by all, and the touch gesture controls on the buds are not intuitive for daily use, and at times, can be frustrating.
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The Buds 4 is available in Zen Green and Storm Grey colours
For alternatives, consider the TWS options such as Nothing Ear, which offers a striking design and polished sound quality. Realme Buds Air 7 Pro provides a good design and thumping bass. You can also consider the Sony WF-C700N, which is slightly costly but offers an excellent sound output.
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![This former notorious red-light district is now one of the world’s top AI hubs | TechCrunch
What every U.K. AI startup wants to know these days is, how can I get office space in King’s Cross?
The area is so hot that a VC firm allegedly recently won a deal by promising a founder office space in the neighborhood. “We stop at nothing to win deals [for] and to support” founders, “including helping them source office space when needed,” the firm told me when asked about the rumor, declining to confirm or deny any details.
The neighborhood’s popularity began back in 2016 when DeepMind — then newly acquired by Google — moved in. Soon after, a flood of AI startups followed, wanting to be around the Google DeepMind magic. Today, they hope to take advantage of the cluster of AI talent there.
This has transformed King’s Cross into one of the world’s top AI hubs, rivaled only by San Francisco and Beijing. Around London, it’s known by the sobriquet “Knowledge Quarter,” as it’s home to names like OpenAI, Meta, Isomorphic Labs, Cusp AI, Wayne, Recursive, and, a little farther down the road, Synthesia and Anthropic. The European Technology Network (ETN) just moved into a glossy new office nearby, while University College London sits around the corner.
Mixed in with the new developments are trendy food spots like Hoppers and BAO. Hop a train from King’s Cross, and founders can be in Cambridge in 45 minutes to source talent or can be in Paris in two hours to strike a deal.
Who would have guessed that a little more than 20 years ago, this was one of the seediest areas in London?
“In the ’80s, crack and heroin made the area a major narcotics market,” Hussein Kanji, an investor at Hoxton Ventures, said, recalling syringes in tree trunks and gangs patrolling the streets. “In 1982, the local church was occupied by the English Collective of Prostitutes for 12 straight days.” Then, in the early 2000s, a real estate developer had a dream and, well, “now it is the AI hotbed of the United Kingdom,” Kanji said. “What a change.” Around 18 months ago, his portfolio company BioCorteX moved from the neighborhood Holborn to the Jellicoe building in King’s Cross, hoping to be near the action. “Lots going on in London right now,” Nik Sharma, co-founder of BioCorteX, told me. “Lots of hyperscalers moving in.” That includes, reportedly, Jeff Bezos’ AI company Prometheus, which is also said to be in talks to move into the Jellicoe.
There are around 3,600 AI startups in London, which, together, have raised around .1 billion out of the .8 billion raised in the city since late July, according to Dealroom. Since the start of June, AI-related startups have leased more than 1 million square feet of office space in London, according to the real estate firm Knight Frank. With that, prime rents in King’s Cross have risen 18% over the past three years, Chris Dunn, a commercial insight associate at the firm, told me. That percentage represents only the largest leases encompassing at least 10,000 square feet, like the ones OpenAI and Prometheus are signing. The shorter deals go for even more, he said, and now the vacancy rate for conventional office space is just 0.9%. “Demand has outstripped supply,” he continued.
Today, one of the big topics of the area is sovereignty. It was a wake-up call for many when Anthropic shut off access to Mythos and Fable this summer, leaving some in the ecosystem to conclude: “We’d better look after ourselves,” Saul Klein, co-founder of the VC firm Phoenix Court, told me.
Phoenix Court is located in the King’s Cross area and has three portfolio companies in the vicinity, including Olix (which just announced a .3 billion valuation), Early Health and CoMind. Robin Klein, co-founder of the firm, said the shutdown of Fable and Mythos access was a “small but sharp reminder that Europe can’t simply rent its AI capabilities and capacity; it needs to build and hold some of its own.” King’s Cross, he said, is where much of this building is actually happening.
“The bigger question,” he continued, “is whether the U.K. builds the infrastructure, compute, energy, capital, to make this self-reliance durable, rather than just hosting outposts of U.S. labs.”
Image Credits:Phoenix Court
Top founders want to stay
Simon Kohl, founder of Latent Labs, has offices in King’s Cross and San Francisco. The London office, at the moment, is growing faster, and he’s more bullish than ever on the ecosystem, he said. “The mood right now feels less like London trying to catch up and more like London becoming one of the default places to start a serious AI company,” he said. Look around and you are likely to see Wayve testing its autonomous cars. Founded in 2017 by co-founder Alex Kendall, the unicorn is one of London’s biggest success stories.
“Ten years ago, building a frontier AI company from London felt like an unusual choice,” Kendall told me. “Now it feels like an obvious one.” Wayve moved into King’s Cross in 2018 looking for a space that could double as a garage — “a rare combination in Central London,” Kendall said. He has watched the ecosystem mature around him — and it’s now evident that a startup can stay in London, raise serious capital, hire world-class AI talent, and remain globally competitive, he said. Down the street from Anthropic’s new 158,000-square-foot office is the AI agent builder Sierra and the AI video platform Synthesia.
Laura Gonzalez Florez, Synthesia’s chief of staff and head of people, says the company moved into its glossy new office building a year ago to accommodate its growing team. They were drawn to the area for the same reason as everyone else: “It’s very close to the airport … very close to where a lot of investors are,” she said.
Image Credits:Synthesia
Around two-thirds of Synthesia’s engineers are remote, Gonzalez Florez said, letting the company tap into an affordable, international, and diverse talent pool and helping it scale faster. “From London, we can hire and work, without any problem, people from anywhere, from Slovenia to Portugal,” she said.
Unsurprisingly, London’s AI boom is also causing a talent war.U.K. AI job postings have skyrocketed in the past few years, per data from PwC. When Anthropic announced it moved into town earlier this year, it listed, for example, a salary range of £260,000 to £630,000 for a machine learning research engineer when the average salary in London for the same role is around £102,000. Some founders in the U.K., like those in Silicon Valley, are being forced to raise more and bigger rounds to keep up.
“The real test is whether more globally significant AI companies are founded, funded, and scaled from the U.K., while continuing to attract the world’s best talent to build them here,” Zain Ali, founder of the King’s Cross-based AI legal firm Centuro, told me. “If that continues to happen, King’s Cross won’t just be an AI hub. It’ll become one of the U.K.’s most important strategic assets.”
When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence.#Thisformernotorious #redlight #districtis #nowone #worlds #top #hubs #TechCrunchUK This former notorious red-light district is now one of the world’s top AI hubs | TechCrunch
What every U.K. AI startup wants to know these days is, how can I get office space in King’s Cross?
The area is so hot that a VC firm allegedly recently won a deal by promising a founder office space in the neighborhood. “We stop at nothing to win deals [for] and to support” founders, “including helping them source office space when needed,” the firm told me when asked about the rumor, declining to confirm or deny any details.
The neighborhood’s popularity began back in 2016 when DeepMind — then newly acquired by Google — moved in. Soon after, a flood of AI startups followed, wanting to be around the Google DeepMind magic. Today, they hope to take advantage of the cluster of AI talent there.
This has transformed King’s Cross into one of the world’s top AI hubs, rivaled only by San Francisco and Beijing. Around London, it’s known by the sobriquet “Knowledge Quarter,” as it’s home to names like OpenAI, Meta, Isomorphic Labs, Cusp AI, Wayne, Recursive, and, a little farther down the road, Synthesia and Anthropic. The European Technology Network (ETN) just moved into a glossy new office nearby, while University College London sits around the corner.
Mixed in with the new developments are trendy food spots like Hoppers and BAO. Hop a train from King’s Cross, and founders can be in Cambridge in 45 minutes to source talent or can be in Paris in two hours to strike a deal.
Who would have guessed that a little more than 20 years ago, this was one of the seediest areas in London?
“In the ’80s, crack and heroin made the area a major narcotics market,” Hussein Kanji, an investor at Hoxton Ventures, said, recalling syringes in tree trunks and gangs patrolling the streets. “In 1982, the local church was occupied by the English Collective of Prostitutes for 12 straight days.” Then, in the early 2000s, a real estate developer had a dream and, well, “now it is the AI hotbed of the United Kingdom,” Kanji said. “What a change.” Around 18 months ago, his portfolio company BioCorteX moved from the neighborhood Holborn to the Jellicoe building in King’s Cross, hoping to be near the action. “Lots going on in London right now,” Nik Sharma, co-founder of BioCorteX, told me. “Lots of hyperscalers moving in.” That includes, reportedly, Jeff Bezos’ AI company Prometheus, which is also said to be in talks to move into the Jellicoe.
There are around 3,600 AI startups in London, which, together, have raised around .1 billion out of the .8 billion raised in the city since late July, according to Dealroom. Since the start of June, AI-related startups have leased more than 1 million square feet of office space in London, according to the real estate firm Knight Frank. With that, prime rents in King’s Cross have risen 18% over the past three years, Chris Dunn, a commercial insight associate at the firm, told me. That percentage represents only the largest leases encompassing at least 10,000 square feet, like the ones OpenAI and Prometheus are signing. The shorter deals go for even more, he said, and now the vacancy rate for conventional office space is just 0.9%. “Demand has outstripped supply,” he continued.
Today, one of the big topics of the area is sovereignty. It was a wake-up call for many when Anthropic shut off access to Mythos and Fable this summer, leaving some in the ecosystem to conclude: “We’d better look after ourselves,” Saul Klein, co-founder of the VC firm Phoenix Court, told me.
Phoenix Court is located in the King’s Cross area and has three portfolio companies in the vicinity, including Olix (which just announced a .3 billion valuation), Early Health and CoMind. Robin Klein, co-founder of the firm, said the shutdown of Fable and Mythos access was a “small but sharp reminder that Europe can’t simply rent its AI capabilities and capacity; it needs to build and hold some of its own.” King’s Cross, he said, is where much of this building is actually happening.
“The bigger question,” he continued, “is whether the U.K. builds the infrastructure, compute, energy, capital, to make this self-reliance durable, rather than just hosting outposts of U.S. labs.”
Image Credits:Phoenix Court
Top founders want to stay
Simon Kohl, founder of Latent Labs, has offices in King’s Cross and San Francisco. The London office, at the moment, is growing faster, and he’s more bullish than ever on the ecosystem, he said. “The mood right now feels less like London trying to catch up and more like London becoming one of the default places to start a serious AI company,” he said. Look around and you are likely to see Wayve testing its autonomous cars. Founded in 2017 by co-founder Alex Kendall, the unicorn is one of London’s biggest success stories.
“Ten years ago, building a frontier AI company from London felt like an unusual choice,” Kendall told me. “Now it feels like an obvious one.” Wayve moved into King’s Cross in 2018 looking for a space that could double as a garage — “a rare combination in Central London,” Kendall said. He has watched the ecosystem mature around him — and it’s now evident that a startup can stay in London, raise serious capital, hire world-class AI talent, and remain globally competitive, he said. Down the street from Anthropic’s new 158,000-square-foot office is the AI agent builder Sierra and the AI video platform Synthesia.
Laura Gonzalez Florez, Synthesia’s chief of staff and head of people, says the company moved into its glossy new office building a year ago to accommodate its growing team. They were drawn to the area for the same reason as everyone else: “It’s very close to the airport … very close to where a lot of investors are,” she said.
Image Credits:Synthesia
Around two-thirds of Synthesia’s engineers are remote, Gonzalez Florez said, letting the company tap into an affordable, international, and diverse talent pool and helping it scale faster. “From London, we can hire and work, without any problem, people from anywhere, from Slovenia to Portugal,” she said.
Unsurprisingly, London’s AI boom is also causing a talent war.U.K. AI job postings have skyrocketed in the past few years, per data from PwC. When Anthropic announced it moved into town earlier this year, it listed, for example, a salary range of £260,000 to £630,000 for a machine learning research engineer when the average salary in London for the same role is around £102,000. Some founders in the U.K., like those in Silicon Valley, are being forced to raise more and bigger rounds to keep up.
“The real test is whether more globally significant AI companies are founded, funded, and scaled from the U.K., while continuing to attract the world’s best talent to build them here,” Zain Ali, founder of the King’s Cross-based AI legal firm Centuro, told me. “If that continues to happen, King’s Cross won’t just be an AI hub. It’ll become one of the U.K.’s most important strategic assets.”
When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence.#Thisformernotorious #redlight #districtis #nowone #worlds #top #hubs #TechCrunchUK](https://techcrunch.com/wp-content/uploads/2026/08/DM9A2852.jpg?w=680)

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