You pinch your thumb and forefinger together in the empty air in front of you, and you feel the click. It’s a subtle, localized buzz, a tiny muscle twitch against the skin of your wrist. The gesture you just made, a simple pinch to select a virtual object, has been registered not just by a camera in a headset but by sensors strapped to your arm, and it has answered back with a tactile nudge. This is the foundational interaction Fether Labs is building toward: a wristband that knows where your hands are and can talk back to them.
Founded in 2024 and spun out of Imperial College London, Fether Labs is a pre-seed hardware startup aiming to replace the clunky controllers and finicky camera-based hand tracking of today’s extended reality (XR) with a more intimate, always-on alternative [Jacques Blagburn - Fether Labs | LinkedIn]. Their product, described on their site as “wristbands that track your hands all around you and give you a sense of touch,” seeks to make interacting with virtual objects feel as natural and responsive as manipulating physical ones [Fether Labs].
The Wedge Is a Wristband
The company’s core insight is one of anatomy and ergonomics. Today’s most advanced headsets rely on outward-facing cameras to infer hand position and gesture. It’s a clever workaround, but it has limitations. Your hands can leave the frame. Lighting conditions can confuse the algorithms. And there’s no physical feedback. Fether Labs proposes moving the sensing apparatus from the head to the wrist, using a combination of inertial measurement and monitoring “tendon dynamics” to achieve precise, natural gesture control [Patrick Sanchez Ayala - EY | LinkedIn]. This is paired with haptic actuators to provide that missing sense of touch.
The form factor itself is the wedge. A wristband is less obtrusive than a controller, more personal than a camera, and always accessible. The company explicitly frames its mission as “Wristbands to redefine how we control all devices, starting with AR glasses” [Onstage (Magpie Ventures), 2025].
A Team Built for the Long Game
The founders bring a blend of deep-tech academic rigor and seasoned Silicon Valley operational experience.
- Jacques Blagburn, CEO. A co-founder from Imperial College with a background spanning the NHS and other technical roles [RocketReach].
- Michael Ma, CTO. Ma was a General Partner at Liquid 2 Ventures and sold his Y Combinator-backed startup TalkBin to Google in 2011, later serving as a lead product manager at the search giant [Forbes].
- James Choi, CSO. Another Imperial College co-founder, Choi leads the technical leadership focused on the sensor and haptic technology [Fether Labs].
The company has attracted early backing from Keen Venture Partners and participated in the Magpie Ventures Onstage W25 demo day [Onstage (Magpie Ventures), 2025]. Public estimates place the pre-seed raise between £250,000 and £500,000 [Onstage (Magpie Ventures), 2025].
| Role | Name | Prior Experience |
|---|---|---|
| CEO & Co-Founder | Jacques Blagburn | Imperial College London spinout lead |
| CTO & Co-Founder | Michael Ma | Ex-Liquid 2 Ventures GP; sold TalkBin to Google |
| CSO & Co-Founder | James Choi | Imperial College London researcher |
Where the Wheels Could Come Off
Fether Labs is entering a field already crowded with ambitious attempts to solve the XR input problem. Competitors range from established players like Meta’s own research into haptic gloves to startups like Mudra Band and Doublepoint. The technical hurdles are significant. Achieving sub-millimeter accuracy in hand tracking from the wrist, without the line-of-sight advantage of headset cameras, is an unsolved problem at consumer-grade size and power budgets. Then there is the business model challenge: selling a peripheral into an ecosystem dominated by a few giant platform owners.
The company’s current positioning as a B2B developer tool or a potential component supplier to headset OEMs is the logical first step, but it is an unproven path. The next twelve months will be about moving from a compelling prototype to a manufacturable product in the hands of early adopters.
For now, Fether Labs operates in the speculative space before the platform wars of spatial computing have been decided. Its technology asks a subtle but profound question about our relationship with machines: as we seek to blend the digital and physical worlds more seamlessly, where does the interface truly live?