Welcome to Cori: Your First 90 Minutes as Our Product Designer

Hi Siddhant Nagraj

You've just joined the team at GraphWear, the makers of Cori—the world's first non-invasive, real-time wearable lactate tracker. No needles. No blood. Just actionable metabolic performance and recovery data from the skin's surface. Today, you're jumping right into a mini design sprint.

Your mission?
We're about to go live with our pre-launch campaign and need your help shaping how Cori is introduced to the world—visually, functionally, and emotionally. You'll design core touchpoints across our marketing, mobile, and web platforms.

You have 90 minutes to showcase your design instincts, your creative thinking, and how you translate first principles into real-world product decisions.

Part 1: Cori in Action – App Screens (30 minutes)

Story:

A runner straps on Cori, heads out for a tempo session, and glances at their wrist to see their real-time lactate levels climbing. Later, they check their post-run insights to adjust tomorrow's plan.

Your task:

Design two screens from the Cori mobile app:

Live Workout Screen

  • Show real-time lactate readings + key workout metrics
  • (Add one element you think would motivate or educate the athlete)

Post-Workout Summary

  • Provide meaningful, digestible insights—like average lactate, zone time, recovery score, etc.

Design for: iOS (mobile, portrait)
Keep it sleek, athletic, and ready for real-world use.

Part 2: Coach Mode – Web App UX Flow (30 minutes)

Story:

Cori isn't just for individual athletes—it's also for elite coaches managing teams. Coaches log into the Cori Web Dashboard to monitor their athletes' performance, see lactate trends, and personalize training.

Your task:

Sketch or wireframe a 5-screen UX flow for the coach's web experience.

The use case:

Coach logs in → views athlete roster → clicks on one athlete → opens a recent session → adjusts training zones based on lactate data

Deliverable:

Part 3: Bring Cori to Life on Social (30 minutes)

Story:

Imagine you're scrolling Instagram and you see it—a bold, clean, swipe-stopping carousel about a wearable that can measure your lactate in real-time, without pricking your skin. That's what Cori needs.

Your task:

Design a 3–5 slide Instagram carousel ad to introduce Cori and drive pre-orders.

What to include:

Slide 1: The Hook

A bold claim or question

Slides 2–3: The Benefits

Show what makes Cori revolutionary

Slide 4: The Use Case

Real-world application scenarios

Slide 5: The CTA

Join the waitlist, pre-order now, or unlock early access

Format: 1080x1080px square slides, designed for Instagram swipe
Bonus points for seamless transitions between slides.

Your Edge

This is not just a test—this is a preview of what you'd be building with us.

We're looking for:

Clarity over complexity

Clean, intuitive designs that users instantly understand

First-principles thinking

Solutions built from the ground up, not just following trends

Excitement to push the frontier

Passion for revolutionizing health wearables

You may design this in Figma, Adobe XD, or even on pen & paper (as long as it's readable). Upload a single PDF or Figma link when you're done.

We can't wait to see your vision.

Let's build the future of performance together.

— Team Cori

Submit Your Design Work

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Accepted formats: PDF, PNG, JPG, JPEG, GIF, SVG, FIGMA, XD, SKETCH, ZIP

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