Samsung PRO Ultimate 128GB
Score: 88/100
Gigastone Micro SD Card 256GB
Score: 85/100Rankings
The Samsung PRO Ultimate 128 GB microSDXC provides industry-leading read/write speeds and rugged waterproof/shock protection, making it perfect for demanding 4K video and high-performance mobile gaming. Its trade-off is a premium price and limited capacity relative to larger-capacity cards. Best for content creators, videographers and gamers who need the fastest storage available.
Gigastone's 256 GB microSDXC delivers fast up to 130 MB/s reads, rugged waterproof and shockproof construction, and broad device compatibility, all with a 5-year warranty. The UHS-I interface caps peak performance and speed claims can be inconsistent, so buyers should verify authenticity. Ideal for budget-conscious creators and gamers who need reliable 4K storage.
| Attribute | | |
|---|---|---|
128 GB | 256 GBbest | |
200 MB/sbest | 130 MB/s | |
130 MB/sbest | 85 MB/s | |
| ↓ lower better | 0.25 gbest | 20 g |
10 yearsbest | 5 years | |
| ↓ lower better | 1 mmbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Capacity (GB) | 128 GB | 256 GB |
Performance(4) | ||
Read Speed (MB/s) | 200 MB/s | 130 MB/s |
Write Speed (MB/s) | 130 MB/s | 85 MB/s |
UHS Speed Class | U3 | UHS‑I U3 |
Interface | UHS-I | UHS‑I |
Design(2) | ||
Form Factor | microSD | microSDXC |
Weight (g) | 0.25 g | 20 g |
General(2) | ||
Warranty (years) | 10 years | 5 years |
Compatibility | GoPRO Action Cam, DJI Drone, Gaming, Phones, Tablets | GoPro, Dash Cam, DJI, Drone, Security Camera, Nintendo Switch, smartphones, tablets, PCs, laptops, DSLRs, e-readers |
Products in the top-left offer the best value (high score, low price).
Professional reviewers note the card's industry-leading read/write speeds and its classification as Samsung's 'world's No.1 flash memory', emphasizing its suitability for demanding 4K video and high-performance mobile applications.
Professional reviewers commend the Gigastone 256 GB 4K Pro for its fast read speeds, solid V30/U3 rating, and rugged build, making it a capable choice for 4K video and gaming on a budget. However, they caution that the UHS-I interface limits peak performance, independent benchmarks are lacking, and there are documented counterfeit concerns, which together temper enthusiasm for demanding professional workflows.
Everyday users generally appreciate the card's ability to handle 4K video on devices like GoPro and Nintendo Switch, its quick transfer times, and the peace of mind offered by the free data recovery warranty. Recurring themes include satisfaction with durability and convenience of the included adapter, alongside worries about possible counterfeit units and occasional speed drops when the card fills up.
