ADATA vs Sigma SD Cards
Side-by-side price per gigabyte comparison across 9 products.
As of March 2026, ADATA averages $0.3618/GB across 8 products while Sigma averages $31.2494/GB across 1 products on BuyPerUnit. ADATA offers 99% better value per gigabyte for sd cards.
ADATA
Better ValueCheapest Product
ADATA 512GB Premier Pro microSDXC UHS-I U3 / Class 10 V30 A2 Memory Card with SD Adapter, Speed Up to 100MB/s (AUSDX512GUI3V30SA2-RA1)512GB · $69.67 · newegg
Sigma
Cheapest Product
Sigma 16mm f/1.4 DC DN Contemporary Lens for Sony E W/ 16GB SD Card & Travel Kit16GB · $499.99 · newegg
Top Products Compared
| Rank | Brand | Product | Capacity | $/GB | Price | Retailer |
|---|---|---|---|---|---|---|
| 1 | ADATA | ADATA 512GB Premier Pro microSDXC UHS-I U3 / Class 10 V30 A2 Memory Card with SD Adapter, Speed Up to 100MB/s (AUSDX512GUI3V30SA2-RA1) | 512GB | $0.1361 | $69.67 | newegg |
| 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 |
| 2 | ADATA | ADATA 256GB Premier Pro microSDXC UHS-I U3 / Class 10 V30 A2 Memory Card with SD Adapter, Speed Up to 100MB/s (AUSDX256GUI3V30SA2-RA1) | 256GB | $0.1562 | $39.99 | newegg |
| 3 | ADATA | ADATA 128GB Premier microSDXC UHS-I / Class 10 Memory Card with SD Adapter, Speed Up to 85MB/s (AUSDX128GUICL10 85-RA1) | 128GB | $0.1945 | $24.90 | newegg |
| 4 | ADATA | ADATA Premier 64GB Secure Digital Extended Capacity (SDXC) Flash Card | 64GB | $0.2238 | $14.32 | newegg |
| 5 | ADATA | 512GB AData Premier Extreme SD Express Card SDXC PCIe Gen3 UHS-I U3 SD7.0 | 512GB | $0.3678 | $188.33 | newegg |
Which Should You Buy?
Based on current pricing data, ADATA offers better overall value for sd cards at an average of $0.3618/GB compared to Sigma's $31.2494/GB — that's roughly 99% less per gigabyte.
ADATA's best deal is the ADATA 512GB Premier Pro microSDXC UHS-I U3 / Class 10 V30 A2 Memory Card with SD Adapter, Speed Up to 100MB/s (AUSDX512GUI3V30SA2-RA1) (512GB) at $0.1361/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 ADATA or Sigma cheaper per GB for sd cards?
As of March 2026, ADATA averages $0.3618/GB compared to Sigma at $31.2494/GB. ADATA is approximately 99% cheaper per gigabyte on average.
How many ADATA and Sigma sd cards does BuyPerUnit track?
BuyPerUnit currently tracks 8 ADATA products and 1 Sigma products in the sd cards category, all ranked by price per gigabyte.
What is the cheapest ADATA sd card per GB?
The cheapest ADATA option is the ADATA 512GB Premier Pro microSDXC UHS-I U3 / Class 10 V30 A2 Memory Card with SD Adapter, Speed Up to 100MB/s (AUSDX512GUI3V30SA2-RA1) at $0.1361/GB ($69.67 for 512GB).
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).