A fashion ecommerce team has budget for one customer-experience improvement. Merchandising wants shoppers to explore more of the collection. Customer care wants fewer questions about which size to order. Both proposals arrive labelled “virtual fitting.” Before comparing prices, separate the decisions they are meant to improve.
Visual virtual try-on helps a shopper evaluate a look. Size recommendation helps them choose a size. A system can combine these functions, but one does not prove the other. For a fashion founder, ecommerce director or technology buyer, the useful comparison is the customer uncertainty resolved, the evidence required and the work needed to deliver it.
This guide proposes a buying framework. Its scenarios and evaluation criteria are planning guidance, not measured iKawn results.
Why the distinction matters when allocating budget
Public investment in fashion shopping technology spans different jobs. Google’s May 20, 2025 announcement introduced a photo-based try-on experiment for visualising apparel on the shopper, including saving and sharing looks. That announcement demonstrates a discovery workflow; it does not establish accurate size selection or a commercial uplift. Source: Google, May 20, 2025.
Zalando’s June 22, 2026 explanation describes a layered approach: product-level size advice, personalised recommendations and a virtual fitting room that uses body measurements to compare sizes on a 3D avatar. It reports that its size-and-fit solutions prevented 8% of size-related returns overall in 2025. That is a retailer-reported result for a portfolio of solutions, not a benchmark for visual try-on or a forecast for another brand. Source: Zalando, June 22, 2026.
The buying implication is specific: “virtual try-on” and “virtual fitting room” are insufficient procurement descriptions. Ask what the proposed product actually outputs. An attractive visual, a recommended size and a simulation of different sizes require different acceptance evidence. Neither public example is presented as an iKawn customer or deployment.
Compare the capability you are buying
Visual virtual try-on: help the shopper choose a look
Evaluate this capability when the unresolved question is whether a colour, silhouette or styling direction appeals to the shopper. Ask the supplier to demonstrate the intended garment range and channel, then check whether the preview preserves the product’s defining details and helps the shopper make a useful selection.
The acceptance question is whether the visual supports an informed shortlist. Do not approve a size claim because an image looks convincing. A visual preview also cannot establish fabric feel or comfort.
Size recommendation: help the shopper choose a variant
Evaluate this capability when shoppers already want the item but hesitate between sizes. Ask which product and shopper inputs it requires, which categories it covers, how it handles missing information, and how its recommendations have been validated. Zalando’s published description, for example, identifies brand information, purchase and return behaviour and fit feedback among the inputs to its size advice. Source: Zalando, June 22, 2026.
The acceptance question is whether the recommendation improves size choice for your actual assortment. A recommendation should have an honest fallback where evidence is insufficient. Keep product measurements, fit notes and ordinary size guidance accessible.
A combined experience: prove both promises
If a supplier offers both functions, request separate evidence for visual usefulness and sizing performance. Confirm whether selecting a different size changes the preview in a validated way or merely changes the selected purchase variant. Ask what the shopper is told when visual output and size advice are unavailable or disagree.
A single interface can make the journey easier, but it does not remove the need for separate evaluation. Equally, separate suppliers can be workable if the handoff preserves the selected product, colour and size without confusing the customer.
Use the shopper’s hesitation to choose the first investment
Start with a small review of customer conversations, product-page behaviour and return comments. Classify the unresolved question rather than assuming every abandoned basket is a fit problem. Use the following scenarios to form a hypothesis:
- “I cannot picture this style on me.” Investigate visual try-on. Test whether the customer can reach a shortlist and continue to the relevant product or assisted-selling step.
- “I want this, but do I need medium or large?” Investigate size guidance and recommendation. Establish whether your product data and the proposed customer inputs can support useful advice.
- “I need to feel the material or check movement.” Preserve a physical fitting or another suitable service route. Do not assign that uncertainty to a visual preview.
- “The item costs too much or will arrive too late.” Review price, stock and fulfilment first. Neither a new visual nor a size suggestion resolves those objections by itself.
Illustrative buying decision: a brand expanding its occasionwear collection might investigate visual discovery if shoppers struggle to narrow their choices. A brand with repeated size-selection complaints on a stable trouser range might investigate sizing first. These are hypotheses to verify with the brand’s own evidence, not category-wide recommendations.
Compare the operating cost, not just the subscription
Request a scoped quote for the same eligible assortment and shopper volume. For visual try-on, establish who approves garment previews, maintains catalogue coverage and supports the camera or photo journey. For size recommendation, establish who maintains product measurements or other required product data, investigates poor advice and manages coverage gaps. Confirm which responsibilities actually apply to each proposal.
Include implementation, ongoing merchandising work, staff training, support, usage charges and evaluation time in the budget. Ask how costs change when categories, traffic or locations expand. A low entry price is not enough information to compare two different operating commitments.
Camera, image and measurement journeys also need deployment-specific answers about what shoppers provide, what is retained, who can access it and how deletion works. Keep an ordinary shopping route available. If a required data practice or customer explanation remains unresolved, hold the launch while the responsible team resolves it.
Design a comparison that can answer the buying question
If you already have size guidance, keep it available to both groups when testing the additional value of visual try-on. Otherwise, you are changing two things and cannot isolate what the new preview contributed. Likewise, compare new size advice against your existing guidance without simultaneously changing prices, product photography and promotions.
Agree the eligible shoppers, categories, comparison method and review period before launch. Include people offered the feature who decline it; results from enthusiastic users alone cannot establish its effect across the audience. Ask your analyst whether the available traffic supports a commercial conclusion or only a usability finding.
- For visual discovery: inspect use, product shortlisting, progression to the next shopping step, preview errors and completed purchases across the agreed audience.
- For size advice: inspect coverage, recommendation uptake, unresolved size questions, exchanges and size-related returns after the relevant return window.
- For the overall investment: compare retained-order contribution after the added operating costs. Engagement and acceptance rates help diagnose the journey; they are not revenue.
If both functions are candidates, stage the evaluation unless traffic and analysis capacity justify testing several combinations. Do not add benefits from separate vendor case studies together. For a deeper treatment of return claims, use the fashion returns buyer’s guide.
Where iKawn Mirror fits in the decision
iKawn Mirror offers live and photo-based virtual try-on for fashion discovery. Evaluate it when your team wants to help shoppers explore looks, compare products or prepare for an assisted-selling conversation. Confirm the supported workflow and commercial scope for your channel and garments in the demonstration.
If validated size recommendation is a mandatory requirement, say so at the outset and request specific evidence. Do not infer that capability from a convincing Mirror preview. If you already use a sizing tool, discuss whether the proposed Mirror journey can complement it; confirm any integration and handoff rather than assuming it is included.
Bring a representative garment range, examples of the customer hesitation you want to resolve and your current size-selection journey. Leave the conversation with a clear proposal: the decision Mirror would help, the existing guidance that remains necessary, the acceptance evidence and a bounded pilot scope. The vendor evaluation checklist can help capture those commitments.