Podcast Summary: “How Wiliot's Nationwide Walmart Rollout Could Prevent Millions In Food Waste”

Omni Talk Retail | Spotlight Series
Date: November 10, 2025
Guests:

• Nick Matthews, Vice President of Solutions and Architecture, Wiliot
• Hosts: Chris Walton and Anne (Ann) Mazinga

Episode Overview

This episode is a deep dive into how Wiliot's IoT (Internet of Things) technology is scaling across Walmart’s entire U.S. operations. The conversation spotlights the transformative potential of Wiliot’s Bluetooth-enabled smart labels—dubbed “BLE pixels”—for food freshness, inventory accuracy, real-time operations, and significant waste reduction. The episode explores how the technology works, its practical rollout at Walmart, and its broader implications for retail supply chains and the future of “physical AI.”

Key Discussion Points & Insights

1. Wiliot’s Technology and Role

• Company Overview:
  Wiliot is known for its wireless, energy-harvesting tags (BLE pixels) using Bluetooth to collect and transmit data (location, temperature, humidity, etc.) across supply chains.

  • “We also aggregate all customer signals into our platform… and provide a more complete, unified view of their supply chain.” – Nick Matthews [02:14]

• Nick Matthews’ Role:
  Nick oversees solution strategy, development of use cases, and works with Fortune 5 companies (especially Walmart) to leverage ambient IoT for visibility and automation.

  • “We are really trying to show them the power of ambient IoT. Walmart’s been a very early and awesome partner.” – Nick Matthews [03:17]

2. The Walmart Rollout: Scale and Impact

• Deployment Scale:
  Wiliot’s BLE pixels will be rolled out in all 4,600+ Walmart stores and 40+ distribution centers nationwide, up from a 500-location pilot.

  • “That is all the Walmarts… pretty much coast to coast. That’s the United States.” – Nick Matthews [06:28]

• How the BLE Pixels Are Deployed:

  • Pixels are currently placed at the pallet level, not on individual products (yet).
  • Integration is seamless—existing 4x6 shipping labels are replaced with “smart labels” containing the Wiliot sensor, using the same systems and automated labelers Walmart already uses.
  • In some distribution centers, printers were retrofitted for BLE-enabled label production.

• Reading the Pixels:

  • Minimal new infrastructure: Only 5–6 BLE readers per store, leveraging ubiquitous Bluetooth (vs. RFID which requires specialized readers).
  • Associates use their own mobile devices to receive notifications and take real-time action.

• Innovative Use Case:
  Food waste is dramatically reduced by real-time alerts and tracking—Walmart projects “tens of millions of pounds” of food saved in 2026 due to this deployment.

  • “We have already seen a significant amount of food waste reduction… Walmart’s already projecting to save tens of millions of pounds of food because of the Wiliot signals.” – Nick Matthews [04:11]

3. Differentiation vs. RFID and Retail Operations Transformation

• Bluetooth vs. RFID:

  • BLE sensors are easier to deploy because Bluetooth readers (phones, etc.) are everywhere; RFID readers are not.
  • “RFID is a great technology, but it’s kind of like a hydrogen car… It’s hard to find a hydrogen gas station.” – Nick Matthews [09:27]

• Actionable Data for Associates:

  • Associates simply get more actionable alerts, integrated with existing systems (no additional training needed).
  • “In from an associate standpoint… it’s completely transparent. They just know, hey, now I know that I’ve got a problem that I can go address or I know that I can go do something before I have a problem.” – Nick Matthews [11:09]

• Examples of Improved Operations:

  • Ensuring misplaced pallets get back onto trucks vs. being forgotten in stores.
  • Automated compliance and cold-chain assurance with real-time alerts for perishable goods (e.g., reminders to get a cold pallet into the freezer).

  “If you have to pull off a pallet that wasn’t supposed to go to your store… We can actually send you a reminder if we determine that, hey, you guys, don’t forget to put this pallet back on the truck. And that’s huge.” – Nick Matthews [12:59]

  “We’re giving them that continuous real time visibility, you know, that enhances Walmart’s ability to anticipate, respond and really optimize their operations right there in the moment.” – Nick Matthews [11:09]

4. ROI for Retailers Beyond Walmart

• Quantifiable Benefits:

  • Inventory accuracy from continuous pallet-level visibility.
  • Freshness and waste reduction in perishables.
  • Labor efficiency: less manual scanning, more customer focus.
  • Compliance (FISMA): Automated, auditable proof of cold chain integrity and delivery/handling.
  • Potential for improved sales/customer experience.

• Scalability & Who Should Consider It:

  • Not just for Walmart-sized operations. The technology is viable for small and mid-sized retailers, as long as there’s a commitment to quality and supply-chain transparency.
  • “We are working with some very small suppliers that are just kicking out… a few tens of thousands of products or even less. And we’re making sure though, that as they build their operation, they’re doing it with… those cost saving benefits.” – Nick Matthews [20:20]

• Adoption Considerations:

  • Start with one problem/use case before scaling; don’t try to “do too much too fast.”
  • Integration with ERP & security is crucial.

5. The Future: Physical AI

• What is “Physical AI”?

  • The vision is extending AI from digital data (clicks, searches) to the physical world—connecting objects, products, and environments for real-time intelligence.
  • “We put the thing back in IoT… Really bring intelligence to objects, products, into the environment and help move our economy.” – Nick Matthews [21:36]
  • “Physical AI… connects the billions of everyday things—pallets, produce, medicine…—to really deliver a continuous stream of real time information. This live data layer, it powers AI systems and… gives them that understanding of what’s happening across the physical world.” – Nick Matthews [21:36]

• Examples and Implications:

  • Real-time, precise decision-making in supply chains (e.g., optimal routing, freshness, inventory placement—all automatically).
  • “As this evolves… you can start to get a sense of where things are moving in the physical space without cameras.” – Chris Walton [23:47]

Notable Quotes & Memorable Moments

• On Walmart’s scale and vote of confidence:
  “That is all the Walmarts… pretty much coast to coast. That’s the United States. And we’re really flattered by that vote of confidence from Walmart.”
  — Nick Matthews [06:28]

• On transformational impact:
  “We have already seen a significant amount of food waste reduction which has been outstanding… Walmart’s already projecting to save tens of millions of pounds of food because of the Wiliot signals.”
  — Nick Matthews [04:11]

• On RFID vs BLE:
  “RFID is a great technology, but it’s kind of like a hydrogen car. They’re super, super cool, but it’s hard to find a hydrogen gas station.”
  — Nick Matthews [09:27]

• On real-time, invisible associate empowerment:
  “From an associate standpoint… it’s completely transparent. They don’t even care that it’s there. They just know… now I know that I’ve got a problem I can go address.”
  — Nick Matthews [11:09]

• On not overengineering adoption:
  “One of the biggest things is they try to do too much with it too fast. I think the first thing is say, I’ve got this problem—let’s see if we can solve it.”
  — Nick Matthews [17:14]

• On “Physical AI”:
  “We put the thing back in IoT… We want to create a seamless connection between data and the real world.”
  — Nick Matthews [21:36]

Key Timestamps

• Wiliot technology intro: [02:14]
• Walmart’s use cases & impact: [04:11]
• Deployment details and infrastructure: [06:23–09:27]
• How BLE pixels are read, difference from RFID: [09:27]
• Real-time store-level impact for associates: [11:09]
• Operational improvements / cold chain compliance: [12:59]
• ROI and broader implications for retailers: [15:11]
• Who should consider Wiliot & adoption tips: [17:14], [20:20]
• Vision of Physical AI: [21:36]

Conclusion

This episode presents a compelling picture of how Wiliot’s BLE pixel technology—now being deployed nationwide by Walmart—can drive huge reductions in food waste, increase inventory accuracy, and improve compliance and operational efficiency with minimal friction for associates. Their vision, extending into “Physical AI,” transforms how the objects and products of the physical world can feed real-time data into automated intelligence and decision-making, representing a profound future shift for retail and supply chains.

For more details or to connect with Nick Matthews:
Find him on LinkedIn or email nick.matthews@wiliot.com [24:54]

Stay tuned for Part 2, focusing on “Physical AI,” coming next month!