By kurahan.com 
The End of the Smartphone Era? How AI Wearables Are Changing Our Relationship With Technology
In late 2025, an interesting narrative started to emerge among technologists, investors, and builders in Silicon Valley: the smartphone era is nearing its end. This isn’t just exaggerated talk; it’s based on real product ideas, new ways to interact, and a better understanding of what people want from technology.
This story can be found in various sources, including a TechCrunch podcast with Sandbar CEO Mina Fahmi discussing competition in the post-Humane AI wearables era, a related summary on Beamstart, and a bold prediction from True Ventures that smartphones may become obsolete in five to ten years as new AI interfaces take their place.
These comments suggest a future where AI wearables—voice-driven, context-aware, screenless devices—become the main way we interact with computing intelligence.
Let’s explore what this future could look like, why it’s appealing, and what challenges it faces.
- From Smartphones to Smart Wearables: A Shift in Perspective
For the last 15 years, smartphones have been the primary way we engage with digital systems. They serve as general-purpose tools, capable of doing nearly everything but not optimized for any single task. We scroll, tap, glance, type, and swipe countless times each day. However, as technology progresses, many people are starting to question whether this disruptive, screen-focused model is still the best option.
In a recent commentary and vision from True Ventures, co-founder John Callaghan argues that:
“In ten years we won’t be using iPhones… or we’ll use something else that’s safer—and we’ll interact with them in a completely different way.”
Why? Because phones are not true interfaces to intelligence; they connect us to apps and visual menus. As AI becomes the main way we engage with computing—requesting summaries, insights, decisions, and context rather than tapping buttons—the gap between our intent and the device’s input/output model becomes clearer.
Callaghan’s point is straightforward: the smartphone is not an effective human-AI interface. It interrupts our lives and requires visual focus when much of our communication is verbal and gestural.
This argument supports why companies like Sandbar are creating voice-first, wearable AI interfaces—devices that remain on us rather than in our pockets.
- Sandbar’s Vision: “Self-Extension” Instead of AI Companions
At the StrictlyVC event highlighted in the TechCrunch podcast, Mina Fahmi, co-founder and CEO of Sandbar, explained how his company is approaching this new frontier.
Sandbar’s product, the Stream ring, is a wearable AI interface worn on the index finger. It captures whispered thoughts—literally when inspiration strikes—and organizes them using AI.
This goes beyond just passive voice recording. Fahmi describes the ring not only as an assistant or companion but as a self-extension—a device that enables users to express themselves without disrupting their flow.
This differs from many early AI wearable attempts—like those from Humane and others, which tried to serve as small smartphone replacements, offering screens, apps, notifications, and AI all in one. Despite impressive engineering, these devices often felt disjointed or forced, as they attempted to replicate what the smartphone did rather than rethink how humans engage with information.
Sandbar believes wearables should excel at one specific task—in this case, voice-based thought capture and AI interpretation—and then expand from there. This strategy reflects the wisdom of product design: prioritize focus and mastery before adding distractions.
- A Post-Humane AI Wearables Era: Learning from Experience
The term post-Humane is significant here. Humane, the startup behind the AI Pin, was among the first to introduce a standalone AI device meant to replace phones. While the device impressed many with its laser projection and gesture controls, it also revealed the challenges of creating a truly intuitive wearable interface.
In the Beamstart summary, Fahmi’s insights were positioned as part of the next generation of device design, where consumer adoption relies not on novelty but on practical integration into daily routines.
The shift from early wearable hype to meaningful functionality is crucial. Wearables have had a mixed history:
- Fitness bands promised healthier lifestyles but often ended up as wrist clutter.
- Google Glass aimed for augmented reality but faltered due to privacy and interface concerns.
- Early AI wearables like AI Pins and smart pendants were intriguing but failed to gain traction.
Sandbar’s method—emphasizing micro-interactions that minimize cognitive load and prioritize privacy—responds directly to these previous challenges.
- Why Voice and AI Wearables Are Relevant Now
Several trends are making this transition feasible:
a. Voice Is a Natural Way for Humans to Communicate
Humans have spoken verbally for thousands of years. As speech recognition and natural language processing improve, using voice becomes more intuitive than tapping on a screen. With contextual understanding, AI can help clarify our intent.
Unlike screens that need our full attention, voice can exist within our natural flow.
b. AI Is Becoming Fluent in Conversation
Large language models and conversational agents are no longer just simple assistants. They can summarize, plan, and provide context—acting as cognitive partners. A wearable interface that offers seamless access unlocks tremendous benefits.
Sandbar’s Stream ring capitalizes on this by transforming spoken thoughts into organized notes and ideas—reducing the friction between thought and capture.
c. Wearables Reduce Visual Overload
Smartphones and screens contribute to digital fatigue. Wearables, especially those focusing on audio and subtle gestures, promise to lessen visual distractions, which aligns with movements advocating for better digital balance.
- True Ventures: Investing in Behavior, Not Gadgets
What makes True Ventures’ prediction intriguing isn’t just optimism; it’s rooted in investment logic based on behavior changes.
In the Mezha/True Ventures article, Callaghan explains that True doesn’t pursue flashy demos. Instead, the firm invests when it sees new forms of human behavior starting to emerge. This philosophy has guided successful investments like Fitbit (wearables), Peloton (connected fitness), and Ring (home monitoring).
The argument goes beyond replacing smartphones with wearables. It’s about a new way of interacting—one that becomes essential because it fits with human nature.
Sandbar aligns with this idea: it seeks to change how we capture and conceptualize our thoughts, not just how we check emails or browse social media.
- What a Smartphone-less Future Might Look Like
If smartphones are declining, what will come next?
a. Distributed, Contextual Interfaces
Instead of one large device, human-AI interfaces may become distributed across various devices—voice-first rings, earbuds, glasses, or even skin patches—each designed for specific situations.
b. AI as the Interface
People will communicate, gesture, and engage with machines, rather than tapping icons or swiping screens. AI could replace apps as the main gateway to the digital world.
This reflects a broader trend in human-computer interaction called Heads-Up Computing, moving toward context-aware, seamless assistance rather than device-centered usage.
c. Shifts in the Attention Economy
Screenless interactions may lessen the addictive lure of social feeds and notifications, potentially improving mental wellness while still providing utility.
d. Privacy and Ownership Concerns
Yet, these interfaces will create new privacy issues. Voice capture and always-listening devices could lead to even greater challenges in data control compared to phones. Addressing these risks will be critical—it’s a design issue, not just a technical one.
- It’s Early Days—But the Foundation Is Being Laid
Many signs point to this shift still being in its early stages rather than a done deal:
- AI hardware hasn’t yet entered the mainstream like smartphones did.
- Wearables like AI Pins and rings currently cater to niche audiences.
- User habits are still largely linked to screen-based interactions.
Still, the building blocks—continuous voice recognition, conversational AI, lightweight edge computing, contextual awareness—are quickly advancing.
Sandbar’s two years of prototyping to refine its interaction model highlight how challenging it can be to create effective hardware and how important it is to get it right.
- Conclusion: The Start of Intelligent Interfaces
We are at the beginning of a new era in human-machine interaction—one where AI is not confined to a glass screen we stare at. Instead, it lives with us, listens to us, and becomes an extension of our thinking processes.
This movement from screen-focused devices to AI-centered interfaces—shown by Sandbar’s voice-enabled wearable—could transform not just how we compute but also how we think, remember, and create.
This change won’t happen overnight—smartphones won’t vanish suddenly. However, if True Ventures’ prediction holds true, we may look back at today as the point when the smartphone’s dominance started to fade, replaced by devices that feel more human and more natural than anything before.