
Sony TOUGH-G 64GB
Score: 87/100
ProGrade Digital Iridium 256GB
Score: 47/100Rankings

The Sony TOUGH-G 64 GB UHS-II card delivers industry-leading speed and rugged durability, making it ideal for professional photographers and videographers working in harsh environments. Its V90 rating ensures reliable 8K video capture, while the IP68 rating protects against water, dust and drops. The main trade-offs are its thicker form factor and higher price.

The ProGrade Digital Iridium 256 GB UHS-II V90 SDXC card delivers ultra-fast read/write performance and rugged durability, making it ideal for high-bitrate 4K/6K video and RAW burst photography.
| Attribute | ![]() | ![]() |
|---|---|---|
64 GB | 256 GBbest | |
300 MB/sbest | 300 MB/sbest | |
299 MB/sbest | 275 MB/s | |
5 yearsbest | 3 years | |
| ↓ lower better | 2 gbest | 15.9 g |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Storage & Capacity(1) | ||
Capacity (GB) | 64 GB | 256 GB |
Performance(1) | ||
Maximum Write Speed (MB/s) | 299 MB/s | 275 MB/s |
Compatibility(1) | ||
Compatible Devices | Backward compatible with UHS-I devices | Canon, Sony, Nikon, Olympus, Panasonic, Fuji, Samsung |
Warranty(1) | ||
Warranty Period (years) | 5 years | 3 years |
Physical(1) | ||
Weight (g) | 2.0 g | 15.9 g |


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

Professional reviewers praise the SF-G64T/T1 for its unmatched ruggedness and speed consistency, noting the monolithic construction as a breakthrough that makes it effectively "unbreakable." Benchmarks confirm it ranks among the fastest UHS-II cards, though isolated cases of slower performance in specific camera models are reported.
Everyday users overwhelmingly commend the card's durability and reliability, frequently describing it as "tough as nails" and appreciating its flawless performance in burst shooting and 4K/8K video. The most common complaints revolve around the card's thicker body causing insertion problems and occasional slower-than-expected speeds.

Professional reviewers from B&H, Leica Camera USA and Filmtools commend the Iridium 256 GB card for its rock-solid reliability, V90 certification and error-correction, highlighting its suitability for high-end DSLR, mirrorless and cinema cameras.
Everyday users consistently rate the card five stars, praising flawless 4K recording, lack of dropped frames and the usefulness of Refresh Pro™.
“Tough as nails”

“No lag in burst mode”

“slower than UHS-I”

