Sigma vs Unirex SD Cards
Side-by-side price per gigabyte comparison across 7 products.
As of March 2026, Sigma averages $31.2494/GB across 1 products while Unirex averages $0.4149/GB across 6 products on BuyPerUnit. Unirex offers 99% better value per gigabyte for sd cards.
Sigma
Cheapest Product
Sigma 16mm f/1.4 DC DN Contemporary Lens for Sony E W/ 16GB SD Card & Travel Kit16GB · $499.99 · newegg
Unirex
Better ValueTop Products Compared
| Rank | Brand | Product | Capacity | $/GB | Price | Retailer |
|---|---|---|---|---|---|---|
| 1 | Sigma | Sigma 16mm f/1.4 DC DN Contemporary Lens for Sony E W/ 16GB SD Card & Travel Kit | 16GB | $31.2494 | $499.99 | newegg |
| 1 | Unirex | Unirex UMS645MUHS1 64GB microSDHC Card | 64GB | $0.1873 | $11.99 | newegg |
| 2 | Unirex | Unirex Full Size SD Card 64GB | 64GB | $0.3123 | $19.99 | newegg |
| 3 | Unirex | Unirex MSU325 32GB MicroSD Card | 32GB | $0.3434 | $10.99 | newegg |
| 4 | Unirex | Unirex MSW325M 4-in-1 Usb/Micro USB Reader and SD Adapter (32GB) | 32GB | $0.3975 | $12.72 | newegg |
| 5 | Unirex | Unirex 16Gb Microsd Card With Sd Adapter, Msu165 | 16GB | $0.6244 | $9.99 | newegg |
Which Should You Buy?
Based on current pricing data, Unirex offers better overall value for sd cards at an average of $0.4149/GB compared to Sigma's $31.2494/GB — that's roughly 99% less per gigabyte.
Unirex's best deal is the Unirex UMS645MUHS1 64GB microSDHC Card (64GB) at $0.1873/GB, while Sigma's cheapest option is the Sigma 16mm f/1.4 DC DN Contemporary Lens for Sony E W/ 16GB SD Card & Travel Kit (16GB) at $31.2494/GB.
However, price per GB isn't everything — consider factors like warranty, performance specs, and your specific capacity needs. Check individual product pages for detailed specifications.
Frequently Asked Questions
Is Sigma or Unirex cheaper per GB for sd cards?
As of March 2026, Unirex averages $0.4149/GB compared to Sigma at $31.2494/GB. Unirex is approximately 99% cheaper per gigabyte on average.
How many Sigma and Unirex sd cards does BuyPerUnit track?
BuyPerUnit currently tracks 1 Sigma products and 6 Unirex products in the sd cards category, all ranked by price per gigabyte.
What is the cheapest Sigma sd card per GB?
The cheapest Sigma option is the Sigma 16mm f/1.4 DC DN Contemporary Lens for Sony E W/ 16GB SD Card & Travel Kit at $31.2494/GB ($499.99 for 16GB).
What is the cheapest Unirex sd card per GB?
The cheapest Unirex option is the Unirex UMS645MUHS1 64GB microSDHC Card at $0.1873/GB ($11.99 for 64GB).