Amazon Basics vs Sigma SD Cards
Side-by-side price per gigabyte comparison across 5 products.
As of March 2026, Amazon Basics averages $0.1839/GB across 4 products while Sigma averages $31.2494/GB across 1 products on BuyPerUnit. Amazon Basics offers 99% better value per gigabyte for sd cards.
Amazon Basics
Better ValueCheapest Product
Amazon Basics microSDXC Memory Card with Full Size Adapter, A2, U3, Read Speed up to 100 MB/s, 128GB, Black128 GB · $19.91 · amazon
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 | Amazon Basics | Amazon Basics microSDXC Memory Card with Full Size Adapter, A2, U3, Read Speed up to 100 MB/s, 128GB, Black | 128 GB | $0.1555 | $19.91 | amazon |
| 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 | Amazon Basics | Amazon Basics 1TB microSDXC Card with Adapter for Smartphones, Full HD, Tablets, Drones, Action Cameras, Read Speed Up to 200MB/s, 1-Pack | 1 TB | $0.1805 | $180.50 | amazon |
| 3 | Amazon Basics | Amazon Basics microSDXC Memory Card with Full Size Adapter, A2, U3, Read Speed up to 100 MB/s, 256GB, Black | 256 GB | $0.1966 | $50.33 | amazon |
| 4 | Amazon Basics | Amazon Basics 128GB microSDXC Memory Card with Adapter for Smartphones, Drones, Cameras, Full HD, Read Speed Up to 200MB/s, 1-Pack | 128 GB | $0.2030 | $25.99 | amazon |
Which Should You Buy?
Based on current pricing data, Amazon Basics offers better overall value for sd cards at an average of $0.1839/GB compared to Sigma's $31.2494/GB — that's roughly 99% less per gigabyte.
Amazon Basics's best deal is the Amazon Basics microSDXC Memory Card with Full Size Adapter, A2, U3, Read Speed up to 100 MB/s, 128GB, Black (128 GB) at $0.1555/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 Amazon Basics or Sigma cheaper per GB for sd cards?
As of March 2026, Amazon Basics averages $0.1839/GB compared to Sigma at $31.2494/GB. Amazon Basics is approximately 99% cheaper per gigabyte on average.
How many Amazon Basics and Sigma sd cards does BuyPerUnit track?
BuyPerUnit currently tracks 4 Amazon Basics products and 1 Sigma products in the sd cards category, all ranked by price per gigabyte.
What is the cheapest Amazon Basics sd card per GB?
The cheapest Amazon Basics option is the Amazon Basics microSDXC Memory Card with Full Size Adapter, A2, U3, Read Speed up to 100 MB/s, 128GB, Black at $0.1555/GB ($19.91 for 128 GB).
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).