DEEP DIVE Leslie’s | At-home water testing
FROM DISCOVERY TO DELIVERY
CHALLENGE
Translating Pro Tech into everyday solutions
Leslie’s aimed to expand into new markets—B2B, retail, and direct-to-consumer—requiring market insights and design expertise to translate professional-grade technology into a user-friendly flagship at-home water testing product.
DISCOVER
PHASE
From guesswork to mastery
Uncovered key knowledge gaps and user frustrations in pool ownership and water testing through qualitative digital ethnography, delivering rapid insights into user behaviors.
Accelerated ethnographic insights through digital diaries and 1:1 interviews
Developed 3 Behavioral Archetypes to understand diverse user needs
Identified 4 market entry points redefining at-home water testing as pool ownership evolves
Synthesized takeaways into Guiding Principles to inform device and UX design
DEFINE
PHASE
Crafting memorable brand moments
Built the foundation of an Experiential Brand Language (XBL) that fuses brand values with seamless user interactions. Defined key signature moments that bring the brand to life across physical and digital touchpoints, creating a multi-sensory experience that feels engaging and intuitive.
Defined core beliefs and visual expressions integrating stakeholder and consumer inputs
Optimized user journey mapping current and future state journeys
Developed Experiential Brand Language (XBL) ensuring every interaction embodies the brand and strengthens user connection
Identified four key moments for sensory touchpoints throughout the physical device journey
Co-creating a clear North Star
Stakeholder goals, brand values, and user needs were distilled into a unifying principle—making at-home testing accurate, effortless, and empowering. This North Star provided alignment, ensuring consistency in decisions and a focused path forward.
A physical task, digital results
Guided by the North Star, physical, digital, and hybrid touchpoints were refined to simplify interactions, reduce errors, and enhance key moments through multi-sensory design.
Mapped the user journey to pinpoint critical interactions enhancing physical, digital, and hybrid experiences across touchpoints
Signaled readiness with light and sound feedback confirming the device is active and ready
Crafted signature moments for ease intuitive physical interactions with LED animation for a confident test start
Seamless device-to-app experience pulsing LED confirms data transfer, guiding users to treatment options
LED-guided reset disk removal enables maintenance, while the app guides pool balancing
DESIGN
PHASE
Crafting a unique personality
By exploring component configurations and architectural layouts, the design phase translated brand values into distinctive form expressions, setting a new standard in at-home testing with an intuitive, engaging, and boldly unique personality.
Explored component configurations to establish a foundation for distinct form gestures
Defined distinctive product personalities and intuitive interactions to set new category standards
DELIVER
PHASE
Mastering the details
A future-proof, intuitive product emerged by balancing design ambition with technical realities. Close collaboration and early engineering integration streamlined production, eliminating last-minute changes. Rapid prototyping and user testing sharpened every touchpoint—from wave form to lighting cues—ensuring a seamless, engaging experience.
Optimized every touchpoint— through a holistic end-to-end approach to usability and functionality
Designed for confidence and ease— grounded form, functional contours, and restrained branding
Wave contour guides opening— contoured lid ensures a secure, reassuring grip, improving ergonomics
Enhanced usability and integrated accessories— integrated cover reduces steps, and IR sensors prevent testing without a disk
Streamlined with a single-button start to reduce device-app switching
Status light animations signal states— spinning for water distribution, blinking to prompt disk removal
WHAT PEOPLE SAY
“The AccuBlue Home device has transformed how I maintain my pool. The precision and ease of use are unmatched, and having customized treatment plans at my fingertips is incredibly helpful.”
-John D. (Subscription owner)
CONCLUSION
By anchoring decisions in real user insights, aligning brand principles, and prioritizing sustainability from day one, Leslie’s delivered a stand-out hardware solution. This holistic approach enabled faster market entry and higher consumer satisfaction—all at a reduced cost and carbon footprint.
In 2022, I directed an 8-week sprint culminating in a breakthrough product design—complete 3D CAD, UI/UX flows, CMF specs, cost tradeoff assessments, and a finalized component layout—enabling a 12-week engineering phase with zero design changes
TEAM
Program Leadership & Research
Lea Kobeli (Project Lead) – Led strategy, design direction, and user research. Oversaw UI/UX and program roadmap
Industrial & UI/UX Design
Aleyse McNealy, Alex Dakin, Lea Kobeli (Project Lead)
Visualizations & Animations
Aleyse McNealy
Mechanical Engineering & DFM
Alex Dakin, Michael Boren, Matt Peterson (DFM-Project Lead)
Business Development
Jedd Martin, Jeff Salazar
CREDITS
Designed by McKinsey Design
Media Credits McKinsey Design, Leslie’s
AWARDS
GOOD DESIGN 2024
This project is presented for portfolio purposes only and is not affiliated with or endorsed by any company. All rights reserved.
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