Agi vs Sigma SD Cards
Side-by-side price per gigabyte comparison across 5 products.
As of March 2026, Agi averages $0.2420/GB across 4 products while Sigma averages $31.2494/GB across 1 products on BuyPerUnit. Agi offers 99% better value per gigabyte for sd cards.
Agi
Better ValueCheapest Product
AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,...512GB · $103.99 · 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 | Agi | AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... | 512GB | $0.2031 | $103.99 | 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 | Agi | AGI 1TB TF138 MicroSD Memory, High-Capacity Storage Suit for Gaming. MicroSDXC A2 U3 V30 4K UHS-I U3 (Read Speed up to 170 MB/s, Write Speed up to... | 1TB | $0.2220 | $221.99 | newegg |
| 3 | Agi | AGI 256GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... | 256GB | $0.2539 | $64.99 | newegg |
| 4 | Agi | AGI 128GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... | 128GB | $0.2890 | $36.99 | newegg |
Which Should You Buy?
Based on current pricing data, Agi offers better overall value for sd cards at an average of $0.2420/GB compared to Sigma's $31.2494/GB — that's roughly 99% less per gigabyte.
Agi's best deal is the AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... (512GB) at $0.2031/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 Agi or Sigma cheaper per GB for sd cards?
As of March 2026, Agi averages $0.2420/GB compared to Sigma at $31.2494/GB. Agi is approximately 99% cheaper per gigabyte on average.
How many Agi and Sigma sd cards does BuyPerUnit track?
BuyPerUnit currently tracks 4 Agi products and 1 Sigma products in the sd cards category, all ranked by price per gigabyte.
What is the cheapest Agi sd card per GB?
The cheapest Agi option is the AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... at $0.2031/GB ($103.99 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).