Paper price tags giving way to digital screens is a quiet but significant transformation in retail. Electronic shelf labels (ESLs) allow prices to be changed centrally and within minutes. This brings the “dynamic pricing” debate onto store shelves.
What is an electronic shelf label?
Electronic shelf labels are small digital screens that replace paper labels on shelves. Price and product information is updated wirelessly from a central system. As a result, staff no longer need to walk aisle by aisle to change the prices of thousands of products one by one.
Examples from around the world
- Walmart began rolling out digital shelf labels in June 2024, citing time savings and improvements in restocking and order picking. According to October 2025 reports, the company aims to cut the time for price changes from two days to minutes as of 2026.
- Kroger stated that it uses the labels not to raise prices according to real-time demand, but for inventory management, discounts on perishable products, and reducing paper waste and staff workload.
- In Norway, some grocery stores using electronic labels were reported to change prices several times a day to keep up with competitors.
The debate: flexible pricing or surge pricing?
In September 2024, some US senators sent a letter to a retail chain, concerned that the technology could make “surge pricing” easier, raising prices when demand is high. Retailers, for their part, argue that they mainly use the labels for efficiency and discounts. The heart of the debate is this: the technology makes it easier to change prices; in which direction and under what rules prices change depends on the company’s policy and consumer trust.
The data behind dynamic pricing
An electronic label is just a tool. For the system that makes pricing decisions to be reliable, the following data needs to be regular and accurate:
- Sales and inventory data by product and store
- Competitor prices and price positioning
- Perishable product information, such as products nearing their expiry date
- Campaign calendar and price elasticity analyses
- Reports that measure the impact of price changes on sales
From this perspective, dynamic pricing is really built on a solid data analytics infrastructure and demand forecasting capability. You can also read our guide on how competitor prices can be collected.
Conclusion
Electronic shelf labels bring speed and flexibility to pricing. Using that flexibility in a way that preserves customer trust is possible with transparent rules and decisions based on sound data. Use cases such as automatic discounts on perishable products stand out as examples that both reduce waste and benefit customers.