Agi vs Gigastone SD Cards

Side-by-side price per gigabyte comparison across 22 products.

As of March 2026, Agi averages $0.2420/GB across 4 products while Gigastone averages $1.7423/GB across 18 products on BuyPerUnit. Agi offers 86% better value per gigabyte for sd cards.

Agi

Better Value
Avg $/GB$0.2420
Best $/GB$0.2031
Price Range$0.2031 – $0.2890
Products4

Top Products Compared

RankBrandProductCapacity$/GBPriceRetailer
1AgiAGI 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$103.99newegg
1Gigastone[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 U3512 GB$0.2929$149.99amazon
2AgiAGI 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$221.99newegg
2Gigastone【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 Cases128 GB$0.3046$38.99amazon
3AgiAGI 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$64.99newegg
3Gigastone【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 Case256 GB$0.3320$84.99amazon
4AgiAGI 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$36.99newegg
4GigastoneGigastone 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$185.98newegg
5GigastoneGigastone 1TB Micro SD Card, 4K Video Pro, GoPro, Surveillance, Security Camera, Action Camera, Drone, 140MB/s MicoSDXC Memory Card UHS-I V30 Class 101TB$0.3720$371.98newegg

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 Gigastone's $1.7423/GB — that's roughly 86% 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 Gigastone's cheapest 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 (512 GB) at $0.2929/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 Gigastone cheaper per GB for sd cards?

As of March 2026, Agi averages $0.2420/GB compared to Gigastone at $1.7423/GB. Agi is approximately 86% cheaper per gigabyte on average.

How many Agi and Gigastone sd cards does BuyPerUnit track?

BuyPerUnit currently tracks 4 Agi products and 18 Gigastone 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 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).

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