SanDisk vs Unirex SD Cards

Side-by-side price per gigabyte comparison across 259 products.

As of March 2026, SanDisk averages $0.8130/GB across 253 products while Unirex averages $0.4149/GB across 6 products on BuyPerUnit. Unirex offers 49% better value per gigabyte for sd cards.

SanDisk

Avg $/GB$0.8130

Best $/GB$0.1143

Price Range$0.1143 – $41.0930

Products253

Cheapest Product

SanDisk 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 190MB/s, C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAV-256G-GN6MA

256 GB · $29.27 · amazon

Unirex

Better Value

Avg $/GB$0.4149

Best $/GB$0.1873

Price Range$0.1873 – $0.6244

Products6

Cheapest Product

Unirex UMS645MUHS1 64GB microSDHC Card

64GB · $11.99 · newegg

Top Products Compared

Rank	Brand	Product	Capacity	$/GB	Price	Retailer
1	SanDisk	SanDisk 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 190MB/s, C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAV-256G-GN6MA	256 GB	$0.1143	$29.27	amazon
1	Unirex	Unirex UMS645MUHS1 64GB microSDHC Card	64GB	$0.1873	$11.99	newegg
2	SanDisk	SanDisk SDSQUA4-400G-GN6MN MAT 400GB 8pin microSDXC r120MB/s C10 U1 A1 UHS-I SanDisk Ultra microSDXC Memory Card w/out Adapter Retail	400GB	$0.1209	$48.35	newegg
2	Unirex	Unirex Full Size SD Card 64GB	64GB	$0.3123	$19.99	newegg
3	SanDisk	SANDISK - Ultra PLUS 1.5TB microSDXC UHS-I Memory Card	1.5 TB	$0.1293	$193.99	bestbuy
3	Unirex	Unirex MSU325 32GB MicroSD Card	32GB	$0.3434	$10.99	newegg
4	SanDisk	SanDisk SDSDUNR-256G-GN3IN DHE 256GB 9pin SDXC r100MB/s C10 UHS-I SanDisk Ultra SDXC Memory Card Retail	256GB	$0.1313	$33.60	newegg
4	Unirex	Unirex MSW325M 4-in-1 Usb/Micro USB Reader and SD Adapter (32GB)	32GB	$0.3975	$12.72	newegg
5	SanDisk	SanDisk Ultra Plus 128GB SDXC UHS-I Memory Card	128 GB	$0.1395	$17.85	amazon
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 SanDisk's $0.8130/GB — that's roughly 49% less per gigabyte.

Unirex's best deal is the Unirex UMS645MUHS1 64GB microSDHC Card (64GB) at $0.1873/GB, while SanDisk's cheapest option is the SanDisk 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 190MB/s, C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAV-256G-GN6MA (256 GB) at $0.1143/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 SanDisk or Unirex cheaper per GB for sd cards?

As of March 2026, Unirex averages $0.4149/GB compared to SanDisk at $0.8130/GB. Unirex is approximately 49% cheaper per gigabyte on average.

How many SanDisk and Unirex sd cards does BuyPerUnit track?

BuyPerUnit currently tracks 253 SanDisk products and 6 Unirex products in the sd cards category, all ranked by price per gigabyte.

What is the cheapest SanDisk sd card per GB?

The cheapest SanDisk option is the SanDisk 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 190MB/s, C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAV-256G-GN6MA at $0.1143/GB ($29.27 for 256 GB).

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).

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