Nest Thermostat Redesign, final product overview

Nest Thermostat Redesign · 10 Week Student Project

A Greener, Smarter Way
to Save Energy

ROLE UX Designer
Product Strategist
TEAM Giuseppe Mollo
Finley Peplinski
Alyssa Portnoy
TOOLS Figma
Photoshop
DURATION 10 Weeks
Sept 2024

Overview

The Problem

Current thermostat systems on the market often cost more than the average person is willing to spend and do not focus on reducing the environmental impact of heating and cooling systems.

The Solution

Through research and testing, we developed a solution that values the environment, your time, and your money. Setting temperatures that use the least amount of energy and money is as easy as checking the time.

Discovery

Nest redesign mood board

Visual Reference Search

We collected 195+ images to establish the visual language of the redesign, narrowing down to 5 key directions that shaped our palette, typography, and aesthetic direction.

195+ Images Collected
70+ Images Selected
5 Top Images

Visual Identity & Style Guide

A clear color palette and type system established the eco-conscious, approachable design language used consistently across both products.

Nest style guide

DESIGN CHALLENGE

How might we redesign a thermostat to be eco-conscious and budget-friendly, making sustainable temperature control accessible to everyone?

Design

Starting with Low Fidelity

Before any visual decisions, we mapped the core user flows for both the device and companion app in low-fidelity wireframes, focusing purely on structure and logic.

Device low fidelity wireframes
Low-fidelity app wireframes

Evolving to Mid Fidelity

Wireframes evolved through iterative feedback, improving hierarchy, clarifying the thermostat state, and restructuring the scheduling system to be more intuitive.

Mid fidelity device wireframes (circular screens)
Mid fidelity app wireframes

Building the Component Library

With the mid-fidelity flows validated, we moved into building a full component library. This gave us a consistent set of reusable elements across both the device and app, ensuring visual continuity before moving into high fidelity.

Component library

Solution

Presenting Nest, Built for Everyone

The Redesigned Device

The redesigned thermostat makes eco-conscious temperature control effortless. Bold visual feedback, refined iconography, and micro-interactions communicate every state change with clarity, all on a compact circular display.

Final device wireframe

The Companion App

The app extends the thermostat experience, giving users real-time energy savings, eco-mode controls, and scheduling from their phone. Widgets provide instant access without opening the full app.

High fidelity app

Before & After

After presenting the final solution, here is a direct comparison of the original Nest against our redesign. The improvements in accessibility, eco-focused features, and visual hierarchy speak for themselves.

Before and after device and app

Reflection

Designing Beyond the Screen

Designing for a compact physical device taught me to think beyond conventions. Every pixel and line weight had to earn its place.

Cohesion Across Two Products

Building two distinct products that still felt like one family deepened my understanding of design systems and visual consistency.

Accessibility is Non-Negotiable

Balancing accessibility standards with strong aesthetics made contrast ratios and touch targets a natural part of my design process.

That's a wrap

Thanks for reading.

If you have any questions about this project or want to connect, feel free to reach out.