# Lexar Professional 1667x SDXC UHS-II 128GB vs Sony TOUGH SF-G Series UHS-II SD 128GB: specs and price compared

A sourced, side-by-side comparison of the Lexar Professional 1667x SDXC UHS-II 128GB (Lexar) and Sony TOUGH SF-G Series UHS-II SD 128GB (Sony) among memory cards. Lexar Professional 1667x SDXC UHS-II 128GB is the cheaper of the two at $94.99.

## Side by side

| Spec | Lexar Professional 1667x SDXC UHS-II 128GB | Sony TOUGH SF-G Series UHS-II SD 128GB |
| --- | --- | --- |
| US price | $94.99 | $343 |
| Brand | Lexar | Sony |
| Released | 2019 | 2018 |
| Format | sd | sd |
| Capacity (GB) | 128 | 128 |
| Speed class | v60 | v90 |
| Max read (Mbps) | 250 | 300 |
| Max write (Mbps) | 120 | 299 |
| Application class | — | — |
| Warranty | limited lifetime | 5 years limited |

## Key differences

- Speed class: Lexar Professional 1667x SDXC UHS-II 128GB v60 vs Sony TOUGH SF-G Series UHS-II SD 128GB v90
- Max read (Mbps): Lexar Professional 1667x SDXC UHS-II 128GB 250 vs Sony TOUGH SF-G Series UHS-II SD 128GB 300
- Max write (Mbps): Lexar Professional 1667x SDXC UHS-II 128GB 120 vs Sony TOUGH SF-G Series UHS-II SD 128GB 299
- Warranty: Lexar Professional 1667x SDXC UHS-II 128GB limited lifetime vs Sony TOUGH SF-G Series UHS-II SD 128GB 5 years limited

## What reviewers say

**Lexar Professional 1667x SDXC UHS-II 128GB** — TechRadar (May 2025) is the only whitelisted source with genuine hands-on testing of this exact Lexar Professional 1667x SDXC UHS-II. It measured 254MB/s read and 101MB/s write, praising read consistency, capacities up to 256GB, and the limited lifetime warranty, while flagging the 64GB minimum capacity and 4K as the practical filmmaking ceiling. (1 sourced review.)

**Sony TOUGH SF-G Series UHS-II SD 128GB** — Only one outlet actually benchmarked the card. TechRadar's May 2025 SD card guide measured 251MB/s read and 246MB/s write and called them "very impressive", while praising the resin-moulded rugged build and flagging the price and the 128GB capacity ceiling. TechRadar does not state which capacity it tested (its spec box even lists the card type as SDHC, which cannot be right for 128GB), so the numbers are attributable to the SF-G TOUGH UHS-II line rather than verifiably to the 128GB trim. Engadget's 2018 launch piece is news, not a test: it confirms the durability claims and adds the missing write-protect switch and the $276 launch price for 128GB, but every speed figure in it comes from Sony. (2 sourced reviews.)

## Sources

- Lexar Professional 1667x SDXC UHS-II 128GB: https://americas.lexar.com/product/lexar-professional-1667x-sdxc-uhs-ii-card-silver-series/ (americas.lexar.com, verified 2026-06-19)
- Sony TOUGH SF-G Series UHS-II SD 128GB: https://www.amazon.com/Sony-Performance-Blazing-SF-G128T-T1/dp/B07H9GDFRW (amazon.com, verified 2026-06-19)

Canonical: https://frontdeskreview.com/gear/memory-cards/lexar-professional-1667x-sd-128gb-vs-sony-tough-sf-g-sd-128gb/
Cite: Per The Front Desk Review, Lexar Professional 1667x SDXC UHS-II 128GB ($94.99) vs Sony TOUGH SF-G Series UHS-II SD 128GB ($343) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/memory-cards/lexar-professional-1667x-sd-128gb-vs-sony-tough-sf-g-sd-128gb/
License: CC BY 4.0.