SanDisk Ultra 64GB
Score: 75/100
ADATA Premier 128GB
Score: 75/100Rankings
The SanDisk Ultra 64 GB SDXC card delivers solid read performance up to 99.5 MB/s and broad compatibility with major camera brands. Write speeds hover around 16-22 MB/s and it lacks higher video class ratings, limiting 4K use. Suited for casual to semi-professional photographers.
The ADATA Premier 128 GB microSDXC card delivers solid read performance and rugged durability with a lifetime warranty. Its modest 25 MB/s write speed limits 4K video and high-bitrate tasks. Ideal for budget-conscious users needing reliable Full HD storage on mobile devices.
| Attribute | | |
|---|---|---|
64 GB | 128 GBbest | |
80 MB/s | 100 MB/sbest | |
10 MB/s | 25 MB/sbest | |
| ↓ lower better | 4 gbest | 10 g |
10 yearsbest | — | |
| ↓ lower better | 2.3 mm | 1 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Capacity (GB) | 64 GB | 128 GB |
Performance(2) | ||
Read Speed (MB/s) | 80 MB/s | 100 MB/s |
Write Speed (MB/s) | 10 MB/s | 25 MB/s |
Design(3) | ||
Form Factor | SDXC | microSDXC |
Weight (g) | 4.0 g | 10 g |
Thickness (mm) | 2.3 mm | 1 mm |
General(2) | ||
Warranty (years) | 10 years | Lifetime years |
Compatibility | Canon, Nikon, Sony, Fuji, Olympus, Panasonic | Smartphones, tablets, digital cameras, video recorders (includes SD adapter) |
Products in the top-left offer the best value (high score, low price).
Professional reviewers view the Ultra as a budget-friendly option that delivers solid read performance but falls short on write speed. They note its suitability for users with modest bitrate needs while recommending the Extreme or Extreme Pro lines for demanding video or burst photography.
Everyday users generally express high satisfaction, praising the large capacity, reliability, and seamless camera compatibility. Complaints are minimal, with most reviewers reporting error-free operation and quick delivery.
Professional reviewers note that while the ADATA Premier 128GB delivers solid read performance and rugged durability, its modest 25 MB/s write speed and UHS-I interface make it less suitable for 4K video, though it remains a reliable choice for Full HD recording and app storage.
Consumers generally praise the card's reliability, capacity, and broad device compatibility, with no major complaints reported, though awareness of its write-speed limitation varies.
