Zoom on product images: +84.7% conversions for a clothing store
Test run byConversion FanaticsCRO agency
Commentary byLiftArchiveOur analysis, not theirsTurning on zoom for product images lifted conversions by 84.7% for an online clothing store.
Conversion Fanatics ran this test, and shoppers in the variant reached each checkout step more often.
The post does not define each metric or share a sample size.
- Conversions: up 84.7%, the headline figure.
- Add to cart: up just 2%. Most of the gain came after the cart, not at the add button.
- Checkout steps: step 1 up 24%, step 2 up 40.7%, step 3 up 58.3%.
- Cart views: up 14%. This differs from the headline figure, and the post does not explain how each metric was defined.
The change
The variant turns on hover zoom for the product gallery.
Simplified mockup drawn by LiftArchive from the shared screenshots.
Control
Product pages showed a series of photos of a model from different angles, with no way to zoom in.
Variant
The same photos, with zoom turned on. Shoppers picked an image and moved the mouse over it to see detail up close.
Why it likely won
Our reading of the result, not the practitioner's claim.
- Clothing buyers care about fabric, stitching and fit, and zoom lets them check details they cannot touch online.
- A closer look may have removed doubt about quality, so shoppers who added to cart were more willing to finish.
- The tiny change in add to cart suggests zoom mainly helped shoppers commit, not browse.
Caveats: No sample size, duration or confidence level was shared, and the post does not define its metrics, so the headline 84.7% and the 14% cart view figure are hard to reconcile. Data is from 2015.
Who ran it
Conversion Fanatics ran this test for an online clothing store and published the results (Conversion Fanatics blog case study). The numbers are theirs; the summary and commentary on this page are ours.
Read the original case study on Conversion Fanatics →
How to run this test on your store
- Hypothesis
- If we enable zoom on product images, then more shoppers will buy because they can inspect quality and detail before deciding.
- Primary metric
- Conversion rate
- Guardrails
- Page load time
- Add-to-cart rate
- Return rate
- Who should test it
- Stores where detail matters, like apparel, jewelry or furniture, that have high-resolution photos. It probably won't help if your images are low resolution or zoom is already on.
Questions
Does image zoom increase ecommerce conversions?
It can, especially where detail matters. In this test, zoom lifted conversions by 84.7% for a clothing store, though the metrics were loosely defined.
Hover zoom or click to zoom?
This test used hover zoom on desktop. On mobile, pinch or tap to zoom is the norm, so test the version that fits each device.
Will zoom slow down my product pages?
Large zoom images can add load time. Load the high-resolution file only when a shopper starts to zoom.
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