
Amazon Basics microSDXC 1TB
Score: 78/100
Gigastone Micro SD Card 256GB
Score: 85/100Rankings

Gigastone's 256 GB microSDXC delivers fast up to 130 MB/s reads, rugged waterproof and shockproof construction, and broad device compatibility, all with a 5-year warranty. The UHS-I interface caps peak performance and speed claims can be inconsistent, so buyers should verify authenticity. Ideal for budget-conscious creators and gamers who need reliable 4K storage.

Amazon Basics 1TB microSDXC delivers budget-friendly high-capacity storage with up to 100 MB/s read and 80 MB/s write, featuring IPX6 waterproof and shockproof protection. Speed can vary across devices and older hardware may face compatibility limits. Ideal for cost-conscious photographers and gamers needing large space.
| Attribute | ![]() | ![]() |
|---|---|---|
1,024 GBbest | 256 GB | |
100 MB/s | 130 MB/sbest | |
80 MB/s | 85 MB/sbest | |
| ↓ lower better | 0.91 gbest | 20 g |
1 years | 5 yearsbest | |
| ↓ lower better | 0.97 mmbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Storage(1) | ||
Capacity (GB) | 1024 GB | 256 GB |
Performance(5) | ||
Read Speed (MB/s) | 100 MB/s | 130 MB/s |
Write Speed (MB/s) | 80 MB/s | 85 MB/s |
Speed Class | U3 | Class 10 |
UHS Speed Class | UHS-I | UHS‑I U3 |
Interface | UHS-I | UHS‑I |
Design(1) | ||
Weight (g) | 0.91 g | 20 g |
General(2) | ||
Warranty (years) | 1 years | 5 years |
Compatibility | Smartphones, tablets, cameras, GoPro/action cameras, laptops, computers, DSLRs, drones, game consoles | GoPro, Dash Cam, DJI, Drone, Security Camera, Nintendo Switch, smartphones, tablets, PCs, laptops, DSLRs, e-readers |

Products in the top-left offer the best value (high score, low price).

Professional reviewers commend the Amazon Basics card for delivering sequential and random speeds that meet or surpass the SanDisk Extreme/Pro reference, maintaining cool operation during prolonged 4K/8K recording, and offering a compelling price-to-performance ratio.
Everyday users appreciate the card's accurate capacity, reliable adapter, and fast transfers without heat, noting it as a solid value for high-resolution media and app storage. Common themes include satisfaction with performance for typical use and occasional remarks about speed variability and the need to check device compatibility for larger capacities.

“performs faster than most high-end SanDisk cards”

“at least as good as, if not very slightly better”

“fast and cheap -- better than Sandisk”




Professional reviewers commend the Gigastone 256 GB 4K Pro for its fast read speeds, solid V30/U3 rating, and rugged build, making it a capable choice for 4K video and gaming on a budget. However, they caution that the UHS-I interface limits peak performance, independent benchmarks are lacking, and there are documented counterfeit concerns, which together temper enthusiasm for demanding professional workflows.
Everyday users generally appreciate the card's ability to handle 4K video on devices like GoPro and Nintendo Switch, its quick transfer times, and the peace of mind offered by the free data recovery warranty. Recurring themes include satisfaction with durability and convenience of the included adapter, alongside worries about possible counterfeit units and occasional speed drops when the card fills up.