Express checkout buttons in the cart: +26.2% revenue per visitor
Test run byBlend CommerceCRO agency
Commentary byLiftArchiveOur analysis, not theirsShowing express checkout buttons in the cart, instead of only at checkout, lifted revenue per visitor by 26.2% and conversion rate by 6.79%.
Blend Commerce ran this A/B test for a sports nutrition brand.
Mobile shoppers drove most of the gain, with revenue per visitor up 53.29%.
- Revenue per visitor: +26.2% overall. This was the primary metric, and the winning variant was kept permanently.
- Conversion rate: +6.79% overall, so more visitors bought, and those who did tended to spend more.
- Mobile: revenue per visitor +53.29% and conversion rate +16.46%. Phones gained the most.
- Desktop also improved, but the source does not give a figure.
The change
Express payment buttons added to the cart, below the checkout button.
Simplified mockup drawn by LiftArchive from the shared screenshots.
Control
The cart had no express payment buttons. Options like Google Pay and PayPal only appeared once the shopper reached the checkout page.
Variant
Express checkout buttons for the brand's popular wallets, such as Google Pay, PayPal and Shop Pay, were added directly in the cart.
Why it likely won
Our reading of the result, not the practitioner's claim.
- The agency's 90-day payment data showed heavy use of Google Pay (25%) and PayPal (16%), so the buttons matched how this audience already paid.
- One tap in the cart skips the form fields at checkout, which matters most on small screens.
- Familiar payment logos early in the journey may reassure shoppers that paying will be quick and safe.
Caveats: Sample size, test length and confidence level were not shared. Results are reported by the agency that ran the test.
Who ran it
Blend Commerce ran this test for a sports nutrition brand and published the results (Blend Commerce A/B test). The numbers are theirs; the summary and commentary on this page are ours.
Read the original case study on Blend Commerce →
How to run this test on your store
- Hypothesis
- If we show express checkout buttons in the cart, then more shoppers will complete a purchase because their preferred wallet is one tap away and they skip the checkout form.
- Primary metric
- Revenue per visitor
- Guardrails
- Average order value
- Cart-to-checkout rate
- Upsell or cross-sell take rate in the cart
- Who should test it
- Stores where a large share of orders already use wallets like Shop Pay, PayPal or Google Pay, especially with mostly mobile traffic. It may do less if express payments are rare among your buyers, or if your cart relies on upsells that a fast exit would skip.
Questions
Should express checkout buttons go in the cart or only at checkout?
In this test, adding them to the cart lifted revenue per visitor by 26.2%.
Showing them earlier lets shoppers who prefer a wallet skip the checkout form.
Do express checkout buttons help more on mobile?
Here they did: mobile revenue per visitor rose 53.29%, about twice the overall lift.
Typing card and address details on a phone is slow, so one-tap payment saves more effort.
Which express payment options should I show?
Start with the ones your customers already use.
Check your payment reports for the share of orders by method, as this brand did before testing.
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