SanDisk Ultra 64GB
Score: 81/100
Amazon Basics 128GB microSDXC
Score: 58/100Rankings
The SanDisk Ultra 64 GB SDXC/UHS-I card delivers solid read performance and full durability, with an A1-rated microSD variant for Android apps. It's well-suited for Full HD shooting and everyday use, though it lacks the higher video classes needed for 4K workflows.
The Amazon Basics 128 GB microSDXC offers high-performance U3, A2 and V30 ratings at a budget-friendly price, with rugged IPX6 waterproofing and a full-size SD adapter. It's well suited for action cameras, drones and Android devices, though the lowest-capacity models can suffer slower writes and it isn't compatible with the Nintendo Switch 2.
| Attribute | | |
|---|---|---|
64 GB | 128 GBbest | |
140 MB/sbest | 100 MB/s | |
80 MB/sbest | 60 MB/s | |
10 yearsbest | 1 years | |
| ↓ lower better | 4 gbest | 8.02 g |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage & Capacity(2) | ||
Capacity (GB) | 64 GB | 128 GB |
Card Type | SDXC | microSDXC |
Performance(4) | ||
UHS Speed Class | U1 | U3 |
Maximum Read Speed (MB/s) | 140 MB/s | 100 MB/s |
Maximum Write Speed (MB/s) | 80 MB/s | 60 MB/s |
Application Performance Class | A1 | A2 |
Compatibility(1) | ||
Compatible Devices | DSLRS, point‑and‑shoot cameras, camcorders, laptops, Android smartphones, tablets, action cameras (via adapter) | Smartphones, tablets, DSLRs, action cameras, drones, laptops, gaming consoles (except Nintendo Switch 2), car audio systems |
Warranty(1) | ||
Warranty Period (years) | 10 years | 1 years |
Physical(1) | ||
Weight (g) | 4.0 g | 8.02 g |
Products in the top-left offer the best value (high score, low price).
Professional reviewers describe the SanDisk Ultra 64 GB line as a solid mid-tier choice: the SD version delivers fast 140 MB/s reads and dependable Full HD performance, while the microSD version adds A1 app optimization. They commend its durability and value but note the lack of V30 or higher video class for professional 4K workflows.
Everyday users rate the cards around 4.6 / 5, praising their long-term reliability, fast transfers and ruggedness. Common praise includes surviving drops and even a washing-machine cycle. Complaints focus on the lack of 4K support, occasional fit or recognition problems, and slower-than-expected write speeds for large files.
“Great for capturing memories”
“Works flawlessly with my DSLR”
“Ideal for summer photos”
Professional reviewers consistently highlight the Amazon Basics Micro SDXC line as a high-value option that delivers near-premium speeds, solid durability, and A2 app performance, making it especially attractive for budget-conscious 4K video creators and Android power users.
Everyday users praise the card for its reliable performance, genuine capacity, ease of use, and excellent price-to-capacity ratio, often noting flawless 4K recording with GoPro and drones. Recurring complaints focus on slower write speeds on lower capacities, occasional fit issues with small GPS units, and the lack of a protective case.
