OM SYSTEM vs SIGMA Corporation of America
OM SYSTEM (explore.omsystem.com) and SIGMA Corporation of America (sigmaphoto.com) are both Camera & Photo Equipment stores in the AdLibrarySpy index. OM SYSTEM gets more monthly visits than SIGMA Corporation of America: about 612K vs 306K.
The facts we hold on both, side by side. Checked November 9, 2026.
In short
- OM SYSTEM gets more monthly visits than SIGMA Corporation of America: about 612K vs 306K.
- OM SYSTEM runs more live Meta ads than SIGMA Corporation of America: 27 vs 18.
- SIGMA Corporation of America advertised on more days in the past 12 months: 32 vs 25.
- SIGMA Corporation of America's store is older: created Mar 2019, OM SYSTEM's in Oct 2022.
| Fact |  OM SYSTEM |  SIGMA Corporation of America |
|---|---|---|
| Monthly visits (SimilarWeb) | 612K (Sep 2026) | 306K (Sep 2026) |
| Live Meta ads | 27 | 18 |
| Store created | Oct 2022 | Mar 2019 |
| Based in | United States | United States |
| Niche | Camera & Photo Equipment | Camera & Photo Equipment |
| Payment options detected | Adyen Online Payments, Affirm, Afterpay | Braintree, Google Pay |
Questions shoppers ask
- What is the difference between OM SYSTEM and SIGMA Corporation of America?
- OM SYSTEM gets more monthly visits than SIGMA Corporation of America: about 612K vs 306K. OM SYSTEM runs more live Meta ads than SIGMA Corporation of America: 27 vs 18. SIGMA Corporation of America advertised on more days in the past 12 months: 32 vs 25. SIGMA Corporation of America's store is older: created Mar 2019, OM SYSTEM's in Oct 2022.
- Do OM SYSTEM and SIGMA Corporation of America sell the same things?
- Both are in the Camera & Photo Equipment niche.
Facts from the Meta Ad Library, SimilarWeb, Trustpilot and each store; a fact only one of them has is left out. Is OM SYSTEM legit? · Is SIGMA Corporation of America legit?