
Gigastone 4GB SD 2-Pack
Score: 38/100
Lexar PRO 800x 128GB
Score: 63/100Rankings

The Lexar 128 GB 800x PRO SDXC offers solid UHS-I performance with 150 MB/s read and 45 MB/s write speeds, plus rugged durability and a 10-year warranty. It shines for travel and hobbyist creators but may fall short for demanding high-bitrate video or when used with generic readers.

The Gigastone 4 GB SDHC Class 4 2-pack provides a low-cost, rugged storage option for legacy devices, offering basic Class 4 performance, waterproof and shock-proof protection, and extra mini cases, but its tiny capacity and modest speeds limit use to older or low-demand equipment.
| Attribute | ![]() | ![]() |
|---|---|---|
4 GB | 128 GBbest | |
20 MB/s | 150 MB/sbest | |
20 MB/s | 45 MB/sbest | |
5 years | 10 yearsbest | |
| ↓ lower better | 10 g | 2 gbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Storage & Capacity(2) | ||
Capacity (GB) | 4 GB | 128 GB |
Card Type | SDHC | SDXC |
Performance(4) | ||
Maximum Read Speed (MB/s) | 20 MB/s | 150 MB/s |
Maximum Write Speed (MB/s) | 20 MB/s | 45 MB/s |
Bus Interface | SDHC | UHS-I |
Speed Class | Class 4 | C10 |
Compatibility(1) | ||
Compatible Devices | Full compatibility with SDHC‑labeled devices | Point‑and‑shoot cameras, mid‑range DSLRs, HD camcorders |
Warranty(1) | ||
Warranty Period (years) | 5 years | 10 years |
Physical(1) | ||
Weight (g) | 10 g | 2 g |

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

Professional reviewers note that while the Gigastone 4GB card complies with basic SD Association standards, its Class 4 speed and limited capacity render it obsolete for contemporary cameras and devices. It is positioned as a budget OEM solution suitable only for legacy hardware or low-risk environments.
Everyday users appreciate the card's durability, low price, and suitability for older cameras, trail cams, and POS systems. Praise centers on its ruggedness, included mini case, and value in bulk packs, while complaints focus on the tiny 4 GB capacity, slower speeds, and occasional mismatched shipments.

“Perfect for my old DSLR and security camera”

“Great value for the pack”

“Durable and reliable”



Professional reviewers praise the Lexar 800x PRO for its solid speed-to-price ratio, rugged design, and V30 rating that handles 4K video well, but they caution that the peak 150 MB/s read speed is only realized with Lexar's own USB 3.1 readers and may drop to about 120 MB/s on generic hardware.
Everyday users appreciate the card's durability in extreme environments, the quick off-loading of files when paired with a proper reader, and the confidence provided by a 10-year warranty. Common complaints focus on write-speed variability under heavy loads and occasional compatibility hiccups with older cameras or readers.