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On vs Sports Illustrated

The facts we hold on both, side by side. Checked October 16, 2026.

In short

  • Sports Illustrated gets more monthly visits than On: about 36M vs 17M.
  • On runs more live Meta ads than Sports Illustrated: 360 vs 323.
  • Sports Illustrated advertised on more days in the past 12 months: 20 vs 17.
FactOn logoOnSports Illustrated logoSports Illustrated
Monthly visits (SimilarWeb)17M (Sep 2026)36M (Sep 2026)
Live Meta ads360323
Store createdDec 2016Dec 2016
Based inUnited StatesUnited States
NicheAthletic ApparelSports

Questions shoppers ask

What is the difference between On and Sports Illustrated?
Sports Illustrated gets more monthly visits than On: about 36M vs 17M. On runs more live Meta ads than Sports Illustrated: 360 vs 323. Sports Illustrated advertised on more days in the past 12 months: 20 vs 17.
Do On and Sports Illustrated sell the same things?
Both are listed in related niches: On in Athletic Apparel, Sports Illustrated in Sports.

Facts from the Meta Ad Library, SimilarWeb, Trustpilot and each store; a fact only one of them has is left out. Is On legit? · Is Sports Illustrated legit?