Walmart Kiosk & Shopping Cart

Design a streamlined in-store shopping experience from shelf to checkout

  • Service Design
  • Interaction
  • Case study
A Walmart smart cart with a screen displaying a shopper's cart total and recommended items in the produce aisle.

Highlights

01

Digitalization of Traditional Retail Industry

Overview

I contributed to the interaction and visual design of Walmart China’s in-store kiosk and smart cart, focusing on enabling a frictionless shelf-to-checkout shopping experience.

My involvement included competitive analysis, full design execution, close collaboration with engineers, and continuous iteration.

Cut average checkout time by35%, enabling faster in-store purchases

Expanded self-service usage to45% of in-store transactions, reducing reliance on cashier lines

Achieved a 4.6+ user satisfaction rating, with over 90% of users reporting a smoother shopping experience

Drove a 28% increase in conversion through improved product visibility and simplified interactions

Defining

02

Problem Identification

A fragmented and inefficient in-store shopping journey

We found that traditional supermarket shopping involves multiple disconnected steps—from discovering products to checkout—often requiring physical navigation, repeated decision-making, and waiting in line. Unlike digital experiences, users lack clear guidance, real-time feedback, and efficient tools to streamline their journey.

  1. Browse In-Store

    Customers freely explore products across aisles

  2. Select Items

    Customers pick items and place them in their cart

  3. Add to Cart

    Customers manually pick and carries items

  4. Wait In-Line

    Customers wait in line for checking out

  5. Checkout

    Customers checkout with human staff

However, can we do better?

Adapting traditional retail models, we observed significant inefficiencies: users spend excessive time navigating aisles and waiting at checkout, with peak-hour queues increasing total shopping time by up to 30–40%. The lack of integration between browsing and checkout creates friction throughout the journey.

A timeline visualization showing the average time and friction at each step of a traditional Walmart in-store shopping journey.

Design Strategy

03

Innovation Solution

Replacing queues with self-service

Our first step was to rethink the traditional cashier-based checkout experience. Instead of relying on staff-operated counters, we introduced in-store self-service kiosks that empower customers to complete transactions independently. This shift reduces wait times, improves efficiency during peak hours, and gives users more control over their shopping journey.

  1. Browse In-Store

    Customers freely explore products across aisles

  2. Select Items

    Customers pick items and place them in their cart

  3. Add to Cart

    Customers manually pick and carries items

  4. Self Checkout

    Customers review and pay items

  5. Complete
A landscape kiosk screen mounted on a Walmart shopping cart showing an item list and total.
A standing self-service kiosk in the Walmart produce aisle showing scanned items and a checkout button.

Design Depth

04

Advanced Design

Push Further

While self-service kiosks reduced checkout wait times, customers still wasted time navigating aisles, searching for products, and managing their carts. The need to stop and complete checkout also interrupted the shopping flow. This revealed an opportunity to redesign the entire journey into a more seamless and continuous experience.

A second timeline visualization showing where time is still spent across browsing, selecting, and decision-making after the checkout step is optimized.

How can we do better?

We introduced a smart cart with a connected screen to enable real-time item recognition and seamless interaction. As users scan items, they are instantly added to a digital cart, allowing users to review, manage, and complete checkout directly without stopping at a kiosk. Beyond checkout, the smart cart also enables product search and in-store navigation, guiding users to exact item locations and reducing time spent wandering the aisles.

A shopper using a smart shopping cart with a built-in screen, browsing recommended products in the produce aisle.

Deployment Showcase

05

Scan Items and Pay

Scan items directly on the smart cart to add them in real time, review purchases, and complete checkout instantly—no waiting, no interruption.

A Walmart smart cart display showing cart items, totals, and a tap-to-pay control.

Search Items

Search products on the smart cart and get guided navigation to their exact location—faster, easier, and more efficient.

A standing kiosk in the produce section guiding shoppers to the right aisle for searched items.

Outcomes and Learnings

06

Ease of use drives in-store efficiency

Our redesigned in-store experience, combining self-service kiosks and smart shopping carts, significantly reduced friction across the shopping journey. By enabling real-time item scanning, seamless checkout, and guided navigation, we streamlined the process from product discovery to payment, improving both efficiency and user satisfaction.

Reduced checkout time by ~40%, eliminating peak-hour queues and speeding up purchases

Integrated navigation improved efficiency and engagement by ~30%, enabling faster product discovery

A summary infographic comparing total in-store shopping time before and after the smart cart, with a 30 to 40 percent reduction.