Western Digital Purple 256GB
Score: 50/100
Amazon Basics 256GB Micro SDXC
Score: 85/100Rankings
The Amazon Basics 256 GB microSDXC offers solid 100 MB/s read performance, A2 app class, and a full-size adapter in a rugged, waterproof package, making it a budget-friendly choice for 4K video and mobile storage. Its durability features and broad device compatibility add to its appeal, though write speeds are modest and warranty coverage is limited.
The WD Purple SC QD101 256 GB microSDXC is an industrial-grade card built for 24/7 surveillance with high endurance and built-in health monitoring. It tolerates extreme temperatures and harsh environments but offers modest read/write speeds compared with newer U3 cards.
| Attribute | | |
|---|---|---|
256 GBbest | 256 GBbest | |
24 MB/s | 100 MB/sbest | |
24 MB/s | 90 MB/sbest | |
3 yearsbest | — | |
| ↓ lower better | 5.67 g | 0.9 gbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(3) | ||
UHS Speed Class | U1 | U3 |
Maximum Read Speed (MB/s) | 24 MB/s | 100 MB/s |
Maximum Write Speed (MB/s) | 24 MB/s | 90 MB/s |
Compatibility(1) | ||
Compatible Devices | Surveillance cameras with microSD slots; supports card health monitoring in compatible devices | Smartphones, tablets, DSLRs, action cameras, drones, laptops, game consoles (except Nintendo Switch 2), car audio systems |
Physical(1) | ||
Weight (g) | 5.67 g | 0.9 g |
Products in the top-left offer the best value (high score, low price).
Professional reviewers highlight the WD Purple SC QD101 as a purpose-built, durable solution for surveillance systems, emphasizing its endurance, health monitoring, and suitability for AI-enabled edge cameras. They note its slower write speed relative to premium U3 cards but value reliability for constant-write workloads.
Everyday users consistently praise the card's reliability and durability in harsh environments, noting that it rarely fails even after months of nonstop recording. Complaints focus on the slower write speed and occasional incompatibility of the health-monitoring feature with certain camera brands, as well as its higher cost versus standard consumer cards.
“True 128GB capacity”
“Fast and reliable”
“Great for cameras”
Professional reviewers from Manuals+.net, BensBargains and ImproveTheWorld.net praise the card for its high-speed transfer rates, reliable 4K video support and A2 app performance, noting it as a great deal and a top-selling Amazon Choice.
Everyday users consistently commend the card for delivering the advertised capacity, fast and dependable performance in cameras and drones, and exceptional price per gigabyte.
