ChatGPT says -
For Amazon listing images, the goal is maximum zoom quality + consistent presentation, not just compliance. Given your photography prints and frames, here are the best practical specs.
The best aspect ratio
1:1 (square)
Example:
2000 × 2000 px
3000 × 3000 px
4000 × 4000 px
Square images:
display best in search results
centre properly on mobile
avoid cropping
work across all Amazon placements
This is the current standard.
The best image dimensions
Minimum for zoom:
1600 px on the longest side
Recommended working size:
2000–3000 px
Ideal for your products:
3000 × 3000 px
You’ve previously worked at 4000–5000 px for Etsy; that’s fine, but for Amazon:
3000 px square is the sweet spot
My recommendation for your catalogue
Use:
3000 × 3000 px
sRGB colour
JPEG
This gives:
reliable zoom
fast loading
consistent display
future-proof resolution
DPI does not matter
Amazon ignores DPI.
Only pixel dimensions matter.
So:
72 dpi
150 dpi
300 dpi
All behave the same.