Gigastone 256GB microSD
Score: 98/100
Kingston Canvas React Plus 256GB
Score: 99/100Rankings
The Kingston Canvas React Plus 256 GB SDXC UHS-II card offers professional-grade 280 MB/s read and 150 MB/s write speeds with a V60 rating, making it ideal for 4K video and high-resolution burst photography. Its rugged, waterproof design and lifetime warranty add reliability for demanding field work.
The Gigastone 256 GB microSDXC offers strong 4K video capability, solid durability and a unique 5-year data-recovery warranty, making it a dependable mid-range choice. Real-world write speeds fall short of the advertised maximum, which may limit high-bit-rate use cases.
| Attribute | | |
|---|---|---|
256 GBbest | 256 GBbest | |
130 MB/s | 280 MB/sbest | |
85 MB/s | 150 MB/sbest | |
5 yearsbest | — | |
| ↓ lower better | 0.57 gbest | 1.7 g |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage & Capacity(1) | ||
Card Type | microSDXC | SDXC |
Performance(6) | ||
UHS Speed Class | UHS-I | U3 |
Video Speed Class | V30 | V60 |
Maximum Read Speed (MB/s) | 130 MB/s | 280 MB/s |
Maximum Write Speed (MB/s) | 85 MB/s | 150 MB/s |
Bus Interface | UHS-I | UHS-II |
Speed Class | C10 | Class 10 |
Physical(1) | ||
Weight (g) | 0.57 g | 1.70 g |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise the reliable 4K capture and durability, noting the free 5-year data recovery as a unique value add while cautioning that real-world speeds can be lower than advertised.
Everyday users appreciate the robust build and long warranty, but many report write speeds that don't match marketing claims and occasional freezing on lower-end cameras.
“Users report seamless use with Nintendo Switch, with no lag or loading issues”
“One reviewer noted a discrepancy between advertised and actual specs-listing claimed 150/140 MB/s, but card was labeled 100/90 MB/s”
“Some users report lower-than-advertised write speeds (e.g., 58 MB/s in testing)”
TechRadar praises the card's impressive balance of speed and value, noting the 280/150 MB/s rates are more than sufficient for 4K workflows, while B&H highlights its reliability in extreme conditions as a solid choice for travel and documentary shooters.
Everyday users commend the blazing fast performance, durability in harsh environments, and excellent value, though some note the lack of a bundled reader and wish for higher write speeds.
