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Stellar Baby

We built Stellar Baby around Orbie - a portable Bluetooth monitor that reads temperature and humidity around your baby, wherever they are. The app turns that into a simple sleepwear guide, so parents always know what to dress them in.

Our approach was to design for calm, not vigilance. Stellar Baby doesn't hand parents data to interpret - it hands them a decision already made.

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Product Strategy
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Mobile App Development
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Case Study

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When our son was born, we learned how much a baby's environment matters - temperature, humidity and how little existed to help parents know it. What was out there felt clinical. Nothing built for how families actually live. So we built Orbie ourselves — portable enough for the cot, the pram, the car, wherever the day takes you. Not another number to worry about. Just a straight answer: what to dress your baby in tonight. Stellar Baby is Ollie's. It always has been.

Steve

Founder & CEO, Stellar Baby

When our son was born, we learned how much a baby's environment matters - temperature, humidity and how little existed to help parents know it. What was out there felt clinical. Nothing built for how families actually live. So we built Orbie ourselves — portable enough for the cot, the pram, the car, wherever the day takes you. Not another number to worry about. Just a straight answer: what to dress your baby in tonight. Stellar Baby is Ollie's. It always has been.

Steve

Founder & CEO, Stellar Baby

The Challenge

Complexity Simplified

Checking on a sleeping baby shouldn't mean second-guessing yourself. Most environment monitors hand parents a number and leave them to work out what it means - is 19°C fine, or does it need another layer? At 2am, that gap between reading and decision is exactly where the worry lives.

Parents don't need more data about their baby's room — they need one clear answer. Most monitors show a temperature and stop there, leaving tired parents to guess what it actually means for what their baby should wear."

Our Approach

Strategy In Action

We started by mapping how parents actually experience Orbie - not as a stream of sensor data, but as one question asked over and over: is my baby okay right now? Every screen, from first pairing to a routine update, was designed backward from that question.

That principle carried through every layer, not just the obvious ones. A temperature reading becomes a clothing suggestion, not a number to interpret. A dropped connection reads as 'reconnecting,' not an error.

Design System

Development

From a room reading to a calmer decision.

Stellar Baby connects the Orbie Bluetooth monitor to a clear mobile experience. The engineering focus is the handoff between a physical device, its room readings, and the sleepwear guidance a parent sees in the app.

Model the connection
Treat each monitor, connection state, and reading as part of one device journey. The interface needs to distinguish a current reading from a device that needs attention.
A clear device state model
Build the companion
Bring device pairing, room conditions, and multiple monitors into the mobile experience. Keep the essential reading easy to find without turning the home screen into a control room.
The Orbie companion flow
Connect the guidance
Translate temperature ranges into the clothing and layering guidance defined for the product. Keep supporting advice close to the reading that prompted the question.
Reading-to-guidance handoff
Review the edge cases
Work through permissions, reconnecting a monitor, background behavior, and missing readings. Clear states matter just as much as a successful connection.
Understandable device feedback

Technology stack

The foundations behind the experience.

React Native
A shared foundation for the mobile experience.
Expo
Native device capabilities and app delivery.
Supabase
Connected data and account services.
Bluetooth LE
The connection between Orbie and the mobile app.

Built for Impact.

The Room's Vitals, At a Glance

Checking on a sleeping baby shouldn't mean opening five different screens. Temperature, humidity, and every connected device sit on one home screen, so a parent can see the room's exact condition in a single glance.

Built for Impact.

Room Data, Turned Into a Choice

Knowing the room is 24°C doesn't tell a parent what to actually dress their baby in. This turns that number into a real recommendation, a specific layer combination, backed by temperature trends over the night so the choice isn't a guess.

Built for Impact.

A Guide for What to Dress Them In

Recommendation, not explanation. The guide reads the current temperature range and shows the exact clothes, layers, and combinations to use - a smaller step-by-step so a parent doesn't have to guess.

Built for Impact.

Data Alone Isn't Reassurance

Parenting advice usually lives scattered across forums and search results. This keeps it inside the app itself, organized by topic and searchable, so the answer to a 2 AM question is already exactly where the data is.