Switch it on. Open Settings → Modules, find Product Compare and enable it. Compare buttons appear on your store.
Describe your products with features. In Products → Features, create the features that matter for your category, for example for mixer grinders: Wattage, Number of jars, Warranty, Motor speed. Group them in Feature Groups if you like.
Fill the features in on each product (product editor → features). Use the same units everywhere (750 W, not sometimes 0.75 kW), so the comparison lines up.
Test. On your store, click Compare on 2–3 products, then Compare (3) in the bar. Check the table and try Differences only.
