MYGEONAUTE.COM: redesigning Decathlon connected sport platform

TL;DR

From 2013 to 2015, I led the UX/UI redesign of myGeonaute.com—Decathlon’s platform to track and analyze workouts across connected devices. The result:

  • Finalist – Oxylane Innovation Awards 2013 (Decathlon yearly innovation contest)

  • Winner – Futurs en Seine Design Award 2014

  • Responsive, user-tested platform still live today (now decathloncoach.com)

  • Used by nearly a hundred of thousands of users worldwide

  • More than 1,000,000 sport sessions uploaded to the platform

Praised for its motivation-oriented features and compatibility across many devices.

The challenge

In 2013, Decathlon had a fragmented digital sports experience: users could track data via various devices, but had no unified, accessible, and motivating way to review or interact with their workout history.

The existing platform was:

  • Non-responsive (desktop-only)

  • Poorly designed for motivation and behavior change

  • Not optimized for the growing range of connected products

Objective

Redesign myGeonaute.com as a responsive, user-centered hub for sports tracking—bringing together data, motivation, and community in one place.

Key goals:

  • Make sport data accessible anytime, anywhere

  • Motivate users to stay active and track progress

  • Create a flexible system compatible with a wide range of devices

  • Encourage healthy habits through behavior-driven design

My role

UX/UI Designer

I led the experience and interface design:

  • Conducted user research and 1:1 interviews

  • Concept tested early ideas with target users

  • Redesigned the full UI for responsiveness and clarity

  • Created motivational UX features and flows

  • Collaborated with PM, devs, system engineers, and brand designers

Key contributions

  • Unified interface for desktop, tablet, and mobile via responsive design

  • Introduced motivational mechanics (progress tracking, activity goals, peer comparison)

  • Translated raw workout data into meaningful, actionable visuals

  • Led usability testing and iterations based on user feedback

  • Helped define a design vision across product and brand

Design process

1. Research & discovery

  • Conducted in-depth interviews to understand users' real motivations:

    • Stay healthy

    • Lose weight

    • Improve performance

    • Social motivation (comparing or competing with friends)

  • Validated concepts through early prototypes and user testing

2. UX & Interaction Design

  • Designed clear, responsive layouts that worked across all devices

  • Created user flows for:

    • Uploading workouts (manual or synced from device)

    • Visualizing workout history

    • Viewing stats like calories burned, distance, effort zones

    • Comparing progress over time

  • Introduced motivational features:

    • "Are you doing enough?" insights

    • Progress tracking

    • Session comparisons

    • Social leaderboards

3. Visual design

  • Worked with the brand team to create a clean, energetic UI

  • Used color and data visualization to reinforce progress and motivation

  • Ensured accessibility in varied environments and screen sizes

4. Collaboration & iteration

  • Regular design/dev handoff sessions

  • Design QA during implementation

  • Managed input from multiple stakeholders: product, system engineers, brand

Results

User impact

  • Highly rated by users for ease of use and device compatibility

  • Continues to serve as the core of the Decathlon Coach platform

Business & brand impact

  • Finalist at Oxylane Innovation Awards 2013

  • Winner at Futurs en Seine (Paris, 2014)

  • Strengthened Decathlon’s digital product ecosystem

Longevity

  • Platform still in use years later, as the foundation of DecathlonCoach.com

  • Used by hundreds of thousands of sportspeople worldwide

What I Learned

“Data is not enough—motivation is what keeps people coming back.”

→ Designing for sustained behavior change meant understanding the psychology of sport, not just building dashboards.

“Mobile-first wasn’t a trend—it was a necessity.”

→ Making the platform truly responsive expanded reach and user retention across devices.

“Real teamwork leads to real impact.”

→ Cross-functional collaboration between engineers, designers, and business leads was essential to balance feasibility, scalability, and user experience.

Beyond the Brief

  • Initiated UX patterns that laid the groundwork for future features (coaching, social sharing, and challenges)

  • Advocated for early responsive design standards across the org

  • Contributed to growing UX maturity within the team through testing rituals and cross-team feedback sessions