Artificial Intelligence

The Startup Building an AI Voice Ring Raises US$23M to Rethink Human–Computer Interaction

A wearable ring, conversational AI and US$23M in funding. Sandbar wants to rethink how we interact with technology

Updated

March 12, 2026 5:59 PM

Sandbar's Stream ring. PHOTO: SANDBAR

Sandbar, a New York–based interface startup, has raised US$23 million in Series A funding to develop a wearable device that lets people interact with artificial intelligence via voice rather than screens.

Adjacent and Kindred Ventures led the round; both venture firms focused on early-stage technology startups. The investment brings Sandbar’s total funding to us$36 million. Earlier backing included a US$10 million seed round led by True Ventures, a venture capital firm, as well as a US$3 million pre-seed round supported by Upfront Ventures, a venture firm and Betaworks, a startup studio and investment firm.

Sandbar was founded by Mina Fahmi and Kirak Hong, who previously worked together at CTRL-labs, a neural interface startup acquired by Meta in 2019. Their earlier work explored how computers could respond more directly to human intent — an idea that continues to shape Sandbar’s approach to AI interfaces.

The new funding will help the company expand its team across machine learning, interaction design and software engineering as it prepares to launch its first product. That product, called Stream, combines a wearable ring with a conversational AI interface. The system allows users to speak to an AI assistant without unlocking a phone or opening an app.

The concept is simple. Instead of typing into a screen, users press a button on the ring and talk. The system can capture notes, organize ideas, retrieve information from the web or trigger actions through connected applications.

The ring includes a microphone, a touchpad and subtle haptic feedback. These elements allow the device to respond through gentle vibrations rather than visual alerts. According to the company, the ring only listens when the user presses the button — a design meant to address common concerns around always-on microphones.

That design reflects a larger shift Sandbar believes is underway. As AI assistants become more capable, many startups are experimenting with new ways to interact with them. The focus is moving away from screens and keyboards toward interfaces that feel more natural and immediate.

Stream uses multiple AI models working together to process requests, search the web and structure information in real time. The company says users remain in control of their data and can choose whether to share information with other apps.

Sandbar is also developing a feature called Inner Voice, which responds using a voice customized to the user. The feature will debut during a closed beta planned for this spring, giving the company time to refine how the software behaves in everyday use.

The startup currently employs a team of 15 people. Many have worked on well-known consumer devices including the iPhone, Fitbit, Kindle and Vision Pro. Recent hires include Sam Bowen, formerly of Amazon and Fitbit, who joined as vice president of hardware and Brooke Travis, previously at Equinox, Dior and Gap, who now leads marketing.

Sandbar plans to begin shipping Stream in summer 2026 after completing early testing. As artificial intelligence tools become more integrated into daily life, the company is betting that the next shift in computing will not come from another app — but from new ways for people to interact with AI itself.

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Market Trends

5 Women’s Day Marketing Campaigns Startups Can Learn From

Skip the slogans—real Women’s Day campaigns create impact that lasts

Updated

March 6, 2026 1:23 AM

Mother Armenia monument in Victory Park, Gyumri city, Armenia. PHOTO: ADOBE STOCK

Women’s Day offers brands an opportunity to show what they stand for through meaningful action. But the strongest International Women’s Day campaigns do more than say “thank you”. They speak to women’s everyday lives.

Instead of big, vague empowerment slogans, some brands focus on small moments that shape confidence and wellbeing. Think about how we compliment young girls, how safe public spaces feel, what comfort really looks like and how friendship plays help women grow. When a campaign is built on a real insight and backed by something practical, it lands harder and lasts longer.

If you’re a startup planning a Women’s Day initiative, there’s value in studying what actually works. The examples below show how clarity, credibility and usefulness can turn International Women’s Day into something that feels meaningful and on-brand.

1. Dove’s #ChangeTheCompliment campaign: Reframing everyday praise

To celebrate the International Day of the Girl on October 11, 2025, Dove launched #ChangeTheCompliment—a campaign that asked parents and caregivers to rethink how they praise girls. Instead of defaulting to looks-based comments, Dove encouraged adults to acknowledge qualities like resilience, intelligence and determination alongside beauty.

The idea was grounded in data from Dove’s 2024 Real State of Beauty report, which found that more than 60% of girls feel pressure to be beautiful. Dove brought the message to life through a digital film showing parents broadening their praise in everyday moments.  

In Canada, the campaign expanded through a partnership with psychologist Dr. Vanessa Lapointe, who helped anchor #ChangeTheCompliment in expert insight. She linked the campaign’s core message to Dove’s long-running Self-Esteem Project, launched in 2004 to provide free, evidence-based tools developed with psychologists and body image experts. Some of these tools included “Confident Me”, a classroom workshop on body confidence and “Amazing Me”, age-appropriate lessons designed to support self-esteem at school.  

What worked here is that it didn’t stay inside a brand video. Parents, teachers and creators joined in by sharing their own examples online, posting revised compliments, building quick classroom activities or filming short clips where they swapped appearance-based praise for character-based words. From social posts to simple at-home conversations, the idea travelled beyond the original film and made participation easy.

Startup takeaway: Don’t build a Women’s Day campaign around a fuzzy theme. Focus on specific, everyday behaviors your audience relates to and design your campaign to shift them. Specificity makes your message practical and memorable.

2. Tetley’s “I Am More Than My Nickname” campaign: Moving fitness beyond body size

In March 2024, Tetley Green Tea Immune launched the “I Am More Than My Nickname” campaign in India to challenge a common social habit: labeling someone’s fitness based on how their body looks. In many communities, body-type nicknames are used casually. Some of them might sound harmless, but they can chip away at confidence and self-worth over time. Tetley’s point was simple:  fitness isn’t a body size. It’s strength, health and well-being.

The campaign centered on a digital film featuring a young girl nicknamed “Golu”, a Hindi term often used to describe someone as chubby. Throughout the film, she’s judged before she even tries, with people deciding what she can and cannot do based on her appearance. As the story unfolds, she pushes back. The film closes with women of different body types holding placards displaying various nicknames, ending with a clear line: “My Body Can, Your Body Can, Every Body Can”. It’s a strong example of a brand taking a familiar social habit and giving people a new way to see it.

Startup takeaway: Look for one small, common behaviour your audience sees every day. Then give people a simple way to engage with it, whether that’s sharing a story, rethinking a phrase or calling out a habit. When participation is baked into the idea, the campaign spreads naturally.

3. L’Oréal Paris’ “Never Your Fault” campaign: Backing a bold message with expert partnership

For International Anti-Street Harassment Week 2025, L'Oréal Paris launched its “Never Your Fault” campaign as part of its Stand Up Against Street Harassment program. The campaign drew on L’Oréal Paris research with Ipsos showing the scale of the problem: 75% of women reported experiencing harassment, and 60% said they adjust their clothing or appearance in public.  

The message was clear: harassment is never the victim’s fault, and public spaces should feel safer for women. That matters because a lot of women still end up internalizing blame and changing how they dress just to lower the risk.  

The campaign also came with a clear next step. It builds on L’Oréal’s partnership with Right To Be, an international NGO focused on stopping harassment, which began in 2020. Through Right To Be’s 5D framework—Distract, Delegate, Document, Delay and Direct—the program teaches bystanders simple, practical ways to intervene safely in the moment.

Startup takeaway: If you’re addressing a sensitive issue in a Women’s Day campaign, don’t go about it alone. Work with experts who bring trust, depth and real tools. It makes your message stronger fast.

4. Van Heusen Innerwear’s Women’s Day poster: Redefining what “happy” means

In 2025, Van Heusen Innerwear marked Women’s Day with a single visual that many women immediately recognized. The poster showed a crumpled shirt with a bra placed over it, capturing that end-of-day moment of relief.  

The slogan on the poster—“Happy Women’s Day has nothing to do with us”—makes the point that real comfort is personal, not performative. The message wasn’t really about taking off a bra, but about the pressure women carry all day, including the expectation to look a certain way, feel a certain way and still keep going. By leaning into a real, everyday experience, Van Heusen positioned itself as a brand that listens rather than lectures.  

Startup takeaway: Skip the predictable in Women’s Day slogans. Find an honest, lived moment and build around it. When your campaign reflects real life, it feels relevant instead of seasonal.

5. Mattel’s International Women’s Day 2025 campaign: Celebrating friendship as a growth engine

In 2025, Mattel celebrated International Women’s Day by honoring real-life female friendship duos with one-of-a-kind Barbie Role Model dolls made in their likeness. The campaign focused on the idea that strong friendships help women grow, succeed and support each other. Instead of spotlighting individual achievement, it highlighted collective strength—women empowering women.

By featuring duos such as Alicia Keys and Ann Mincieli, Jordan Chiles and Jade Carey and other global pairs across sports, entertainment and advocacy, the campaign framed friendship as a source of confidence and ambition from girlhood onward. To make it practical, Mattel partnered with psychologist and best-selling author Dr. Marisa G. Franco, who shared simple advice for girls: take initiative in making friends, assume people will like you, express appreciation openly, try new activities together and prioritize quality over quantity in relationships.

Startup takeaway:  If your Women’s Day campaign is built on a social insight, make it actionable. Storytelling helps, but tools, education and frameworks are what make it useful.

Make your Women’s Day campaign matter

Across these International Women’s Day campaigns, the playbook is consistent: choose one real, everyday behaviour and shift it. Whether it’s the way we compliment girls, the labels we use, how bystanders intervene, what comfort feels like or how we nurture friendships, each brand anchored its message in something tangible and built action around it.

For startups, the lesson is straightforward: be precise in what you’re addressing, be credible in how you show up and make your message usable. Attention is easy to grab, but relevance is harder to earn and far more valuable.