AI Earbuds That Don't Need a Smartphone | eSIM Built-In for Around $250
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機械翻訳 / Machine-translated
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What you'll learn in this article
On August 27, 2026, voice AI company Plaud announced its new product, the "Plaud One Explorer Edition." It is the world's first AI earbuds with a built-in eSIM.
So what sets it apart from conventional AI voice recorders? Its biggest feature is the ability to operate on its own without a smartphone. The charging case is equipped with an eSIM (an embedded SIM card) and 4G LTE connectivity, allowing recorded audio to be sent to the cloud on the spot.
Priced at $249.99 (approximately ¥40,000), only 2,000 units will be sold worldwide. Reservations opened on August 27, and the product is currently only accepting waitlist registrations. Shipping is scheduled for Q4 2026.
The Plaud One charging case has four built-in microphones capable of picking up conversations from up to five meters away. Simply place it at the edge of a conference room, for example, and it will automatically record what everyone in the room says.
The recorded audio is automatically uploaded to the cloud via the case's eSIM over a 4G LTE connection. In other words, there's no need to take out your phone and open an app. By the time a conversation ends, transcription and summarization are already complete.
Battery performance is equally practical. The charging case packs an 830mAh battery for up to 25 hours of continuous recording. The earbuds themselves last 4 hours and 30 minutes with Active Noise Cancellation (ANC) on, and 6 hours with it off.
Plaud One is more than just a recording device. It functions as an AI agent — an AI that handles tasks on your behalf.
Recording and Transcription
You can use the earbuds to record calls and meetings, or place the charging case on a table to record in-person conversations. Recorded content supports over 112 languages, including Japanese. Transcription is performed automatically, and summaries are generated as well.
AI-Powered Document Creation
Based on recordings, the device can automatically create presentation materials, reports, and spreadsheets. For instance, record a sales meeting and it will draft a proposal outline from the content.
Integration with External Services
The device integrates with commonly used business services such as Gmail, Google Drive, Slack, and Notion. You can automatically post recordings to Slack or save them as notes in Notion.
Each purchase includes $200 in "Plaud Credits" — usage credits for the AI agent features, consumed based on how many transcriptions and documents you generate.
Plaud has previously offered the "Plaud Note" lineup — card-shaped and capsule-shaped AI voice recorders designed to work in tandem with a smartphone app.
The standard Plaud Note uses two microphones to capture audio within a 3-meter range, while the Pro version uses four microphones for a 5-meter range. The standard version is more affordable, and a Pin-style model is also available for those who prioritize portability.
The biggest difference from Plaud One is smartphone dependency. Plaud Note required pairing with a smartphone, whereas Plaud One operates without one thanks to its built-in eSIM. The earbud form factor also adds the convenience of hands-free use while wearing them.
In short, Plaud One represents an evolution into a "self-contained wearable AI."
Plaud One arrives against the backdrop of a rapidly growing wearable AI market. According to market research, the wearable AI market is projected to grow 31.1%, from $52.6 billion in 2025 to $69 billion in 2026.
Key drivers of this growth include the spread of fitness tracking devices, growing health consciousness, miniaturization of sensors, and the expansion of the smartphone ecosystem. In short, demand is rising for devices that can manage health and record information simply by being worn.
Major trends in 2026 include on-device AI processing, AI-powered health monitoring, context-aware wearables, voice and gesture-based interaction, and personalized user experiences.
Plaud One sits in the "voice interaction" and "context-aware wearable" categories. Competitors include Meta's smart glasses, an AI wearable reportedly under consideration by Apple, and "Bee," a company acquired by Amazon.
Plaud One is currently only accepting waitlist registrations. Reservations opened on August 27, but with only 2,000 units available worldwide, reservation slots may already be filled.
You can register through Plaud's official website (jp.plaud.ai). The price is $249.99 (approximately ¥40,000), with shipping scheduled for Q4 2026.
One thing to note is that an eSIM-compatible mobile plan may be required. We recommend checking the official website for details on compatible carriers in Japan and any monthly fees.
Additionally, after using up the included $200 in credits, extra charges may apply for the AI agent features. It's worth factoring in ongoing running costs before making a purchase.
Plaud One is a product that points to the "next stage" of voice AI. A future where you can record, analyze, and act on conversations simply by wearing a device — completely independent of your smartphone — is just around the corner.
This article is a cross-post from AI Friends.
