
Gigastone Micro SD Card 256GB
Score: 85/100
Kingston Canvas React Plus 256GB
Score: 78/100Rankings

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.

The Kingston Canvas React Plus 256 GB SDXC delivers ultra-fast UHS-II performance up to 300 MB/s read and V90 video speeds, providing ample capacity for professional 4K/8K workflows. Its real-world write speeds can fall short of advertised peaks and it lacks the rugged construction of premium rivals. Ideal for pros needing high speed and capacity without premium-grade durability.
| Attribute | ![]() | ![]() |
|---|---|---|
256 GBbest | 256 GBbest | |
130 MB/s | 300 MB/sbest | |
85 MB/s | 260 MB/sbest | |
| ↓ lower better | 20 g | 1.7 gbest |
5 yearsbest | — | |
| ↓ lower better | — | 2.54 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(5) | ||
Read Speed (MB/s) | 130 MB/s | 300 MB/s |
Write Speed (MB/s) | 85 MB/s | 260 MB/s |
UHS Speed Class | UHS‑I U3 | U3 |
Video Speed Class | V30 | V90 |
Interface | UHS‑I | UHS-II |
Design(2) | ||
Form Factor | microSDXC | SDXC |
Weight (g) | 20 g | 1.70 g |
General(1) | ||
Warranty (years) | 5 years | lifetime years |

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

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.

“lots of pictures, amazing storage”




Professional reviewers uniformly commend the Canvas React Plus for its high sustained speeds, reliable in-camera performance, and strong value proposition, though they caution that real-world write speeds can lag behind the advertised maximum and that the card lacks the ruggedness of premium alternatives.
Everyday users praise the card's large capacity and fast, dependable transfers, often highlighting its suitability for event photography and quick post-shoot workflows.