Apple Duo introduces something retailers have not had to seriously design for before: a customer moving between two very different screen experiences during the same shopping journey.
The foldable phone is not new! Samsung and others have been producing them for years.
What matters is whether Apple can make opening and closing the device feel so natural that consumers begin changing screen states as part of how they browse, evaluate and buy products.
This is what Apple does, they enter existing technology categories, remove friction and change consumer behaviour.
This is why retailers should pay attention to the Apple Duo.
The Problem with Foldable Phones Has Never Been the Fold
Existing foldable phones demonstrated the problem Apple needed to solve: the "fold to open" experiences.
For existing foldable phones, there are documented examples of poor experiences when people try to engage with the same digital content while moving from a folded to open screen...
- Applications restarting
- Pages refreshing
Google's own foldable design guidance addresses this known issue..
Users expect their state to be preserved when folding or unfolding a device. Losing position, selections or context creates a poor experience.
The foundation to intuitive digital experiences continuity. Every micro step a consumer takes from searching to buying must be obvious and seamless, which means the act of opening the device in the middle of a session, should become a seamless part of the customer journey.
THAT is the opportunity.
Apple Solves the Transition - Not the Retail Experience
Apple recognises the folded-to-open continuity problem.
The Duo's inner and outer displays use the same aspect ratio so content scales proportionally between them, which Apple says helps maintain visual continuity. Apple has also engineered iOS 27 to adapt as the device folds and transitions between displays.
This means Apple is doing much of the technical heavy lifting required to make the physical transition from folded to open feel seamless.
But this does not mean a retailer's eCommerce experience will automatically become seamless.
Apple cannot decide how a retailer's product listing page should reconstruct itself, what should happen to product content when significantly more screen space becomes available, or how a checkout journey should transition.
Those are customer experience decisions retailers need to plan, design and develop.
Apple can create the environment for a seamless folded-to-open experience. The retailer still has to create the experience.
Why Apple Changes the Equation
Apple has a history of being very good at being second. It did not invent the smartphone, the tablet, the laptop, the MP3 player or wireless earphones.
Apple is exceptional at observing existing technology, identifying the product design issues that create consumer friction, and creating a more intuitive experience.
For the Duo to succeed, Apple needs to make folding and opening the device feel useful and natural when consumers are engaging with digital content.
If Apple achieves that, the important change for retailers is not the device. It is the behaviour the device creates.
A New Mobile Commerce Behaviour
This is where the rubber hits the road.
Mobile commerce has traditionally been designed around the limitations of a small screen, and retailers attempt to drive engagement in a very small space.
The Duo changes that constraint and gives the consumer the freedom to choose when they want to rapidly scan in "folded" mode, or enhance their own engagement in "open" mode.
That creates a multi-screen experience within a single device and a single session.
But this alone can translate to many experience design hurdles the retailer should now be considering. Below are just three examples of the types of things retailers need to consider in preparation for "Duo consumer behaviours"...
#1. Product Listing Pages Need to Preserve the Journey
Consider a consumer scanning a product listing page, the most commonly viewed online retailer page in eCommerce:
- They select a filter such as colour and begin scrolling through the results.
- Halfway through the product range, they open the Duo to make scanning easier.
The page now has to reconstruct itself for a significantly larger screen without making the customer work out where they are again. This experience must achieve the following...
- The selected filters remain
- Their position within the product range remains
- The layout changes, but the context for the consumer does not
#2. Product Detail Pages Become More Powerful Merchandising Environments
Product detail pages create an even more interesting opportunity. Imagine a consumer discovers a product while the Duo is folded, and creates enough interest to warrant the act of opening the device.
The retailer now has a larger surface on which to merchandise that product, but the page template needs to respond accordingly to produce this elegant transition. This is less technically intense than product listing pages, but the transition from a "mobile" layout to a larger screen layout needs to be planned.
The important design question is not simply how to make the existing product page bigger.
For retailers selling products where imagery, information and education influence the purchase decision, this becomes an important customer experience design consideration.
#3. Checkout Journeys Need to Transition Without Friction
Checkout creates another potential common scenario and big opportunity. A consumer can find a product on a small screen but open the Duo to complete the checkout journey.
This creates more space for a properly designed multi-step checkout journey to do its job: Cart, Sign In, Delivery Options, Payment.
Research from Baymard Institute shows the number of checkout steps is not what determines checkout usability. What matters far more is the perceived effort and what consumers are required to do within each step. Their research also shows these problems become more pronounced on smaller mobile screens.
This is where the Duo becomes interesting. Opening the device gives retailers considerably more space to progressively guide consumers through each stage of the checkout while maintaining context, confidence, buying validation, and momentum.
The introduction of a visible progress bar alone is known to enhance checkout conversion rates. This proven psychological element becomes more visually prominent on larger screens.
This is not a Responsive Tablet Design Solution:
Some will say to solve the examples above is simply the technical equivalent of creating a responsive design for a Tablet device (sigh). This could not be further from the truth because tablet journeys started the journey on a tablet. There was no "small to large" screen adjustment in the middle of the journey.
The interface must respond to a change in screen state while preserving an active customer journey. Put simply, the screen can change, but it must feel like it's the same experience for the consumer.
This means everything the customer has already done (in folded mode) must survive the transition and more importantly be obvious to the consumer so they have the confidence to carry on.
Retailers do not need to redesign their websites for the Apple Duo today, but there is a need to have an awareness of the behaviours it introduces.
This requires more than responsive design. It requires retailers to design for continuity between screen states.
The Apple Duo Makes Mobile Commerce More Interesting
The success of the Apple Duo will depend heavily on whether the transition from folded to open feels natural to the consumer.
Consumers do not need to understand the technology or the Duo device design. The interaction simply needs to make the next thing they want to do easier, whether that's scanning products or completing a checkout.
If this is achieved, the device itself will nurture the behaviour. Consumers learn, and are reinforced, that opening the device helps them achieve their goals.
For retailers, that is the point.
If folded-to-open becomes an intuitive behavioural progression, the customer experience needs to be ready for the consumer when they make that move.
About Greg Randall
Greg Randall is an eCommerce consultant and the founder of Comma Consulting. He has spent more than 25 years working with retailers and B2B's, helping them understand what is getting in the way of better digital performance.
His work combines eCommerce strategy, customer experience design, data and commercial pattern recognition to identify the issues that matter and what businesses should do about them.
This article was as tagged as Digital Strategy , eCommerce Consulting , UX Design