Gigastone vs Sigma SD Cards

Side-by-side price per gigabyte comparison across 19 products.

As of March 2026, Gigastone averages $1.7423/GB across 18 products while Sigma averages $31.2494/GB across 1 products on BuyPerUnit. Gigastone offers 94% better value per gigabyte for sd cards.

Gigastone

Better Value

Avg $/GB$1.7423

Best $/GB$0.2929

Price Range$0.2929 – $12.4975

Products18

Cheapest Product

[5-Yrs Free Data Recovery] GIGASTONE 512GB Micro SD Card, TLC High Endurance Pro, Speed Up to 140/120 MB/s, Compatible with REDTIGER Rove VIOFO VANTRUE PRUVEEO Dash Cam, MicroSDXC UHS-I A1 V30 U3

512 GB · $149.99 · amazon

Sigma

Avg $/GB$31.2494

Best $/GB$31.2494

Price Range$31.2494 – $31.2494

Products1

Cheapest Product

Sigma 16mm f/1.4 DC DN Contemporary Lens for Sony E W/ 16GB SD Card & Travel Kit

16GB · $499.99 · newegg

Top Products Compared

Rank	Brand	Product	Capacity	$/GB	Price	Retailer
1	Gigastone	[5-Yrs Free Data Recovery] GIGASTONE 512GB Micro SD Card, TLC High Endurance Pro, Speed Up to 140/120 MB/s, Compatible with REDTIGER Rove VIOFO VANTRUE PRUVEEO Dash Cam, MicroSDXC UHS-I A1 V30 U3	512 GB	$0.2929	$149.99	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	Gigastone	【5-Years Data Recovery】GIGASTONE 128GB SD Card, 4K Camera Pro, A1 V30 SDXC Memory Card 4K UHD Video Compatible with Canon Digital Camera, with 1 Mini Cases	128 GB	$0.3046	$38.99	amazon
3	Gigastone	【5-Years Data Recovery】 GIGASTONE 256GB SD Card, 4K Camera Pro, A1 V30 SDXC Memory Card 4K UHD Video Compatible with Canon Digital Camera, with 1 Mini Case	256 GB	$0.3320	$84.99	amazon
4	Gigastone	Gigastone 512GB Micro SD Card, 4K Video Pro, GoPro, Surveillance, Security Camera, Action Camera, Drone, 100MB/s MicoSDXC Memory Card UHS-I V30...	512GB	$0.3632	$185.98	newegg
5	Gigastone	Gigastone 1TB Micro SD Card, 4K Video Pro, GoPro, Surveillance, Security Camera, Action Camera, Drone, 140MB/s MicoSDXC Memory Card UHS-I V30 Class 10	1TB	$0.3720	$371.98	newegg

Which Should You Buy?

Based on current pricing data, Gigastone offers better overall value for sd cards at an average of $1.7423/GB compared to Sigma's $31.2494/GB — that's roughly 94% less per gigabyte.

Gigastone's best deal is the [5-Yrs Free Data Recovery] GIGASTONE 512GB Micro SD Card, TLC High Endurance Pro, Speed Up to 140/120 MB/s, Compatible with REDTIGER Rove VIOFO VANTRUE PRUVEEO Dash Cam, MicroSDXC UHS-I A1 V30 U3 (512 GB) at $0.2929/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 Gigastone or Sigma cheaper per GB for sd cards?

As of March 2026, Gigastone averages $1.7423/GB compared to Sigma at $31.2494/GB. Gigastone is approximately 94% cheaper per gigabyte on average.

How many Gigastone and Sigma sd cards does BuyPerUnit track?

BuyPerUnit currently tracks 18 Gigastone products and 1 Sigma products in the sd cards category, all ranked by price per gigabyte.

What is the cheapest Gigastone sd card per GB?

The cheapest Gigastone option is the [5-Yrs Free Data Recovery] GIGASTONE 512GB Micro SD Card, TLC High Endurance Pro, Speed Up to 140/120 MB/s, Compatible with REDTIGER Rove VIOFO VANTRUE PRUVEEO Dash Cam, MicroSDXC UHS-I A1 V30 U3 at $0.2929/GB ($149.99 for 512 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).

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