Lexar
Lexar Professional 1667x SDXC UHS-II 128GB
$94.99Cheaper
Released 2019
Best Memory Cards · head-to-head
Lexar Professional 1667x SDXC UHS-II 128GB vs Sony TOUGH SF-G Series UHS-II SD 128GB
A sourced, side-by-side comparison. Lexar Professional 1667x SDXC UHS-II 128GB is cheaper at $94.99. Every spec and price links to its source.
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Sony
Sony TOUGH SF-G Series UHS-II SD 128GB
$343
Released 2018
Which is better: the Lexar Professional 1667x SDXC UHS-II 128GB or Sony TOUGH SF-G Series UHS-II SD 128GB?
The Sony TOUGH SF-G Series UHS-II SD 128GB wins 2 of the 2 specs we compare head to head; the other wins 0. The Lexar Professional 1667x SDXC UHS-II 128GB is the cheaper at $94.99. Get the Sony TOUGH SF-G Series UHS-II SD 128GB for the stronger spec sheet, the Lexar Professional 1667x SDXC UHS-II 128GB to spend less.
Check Lexar Professional 1667x SDXC UHS-II 128GB price Check Sony TOUGH SF-G Series UHS-II SD 128GB price
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Key specs, head to head
The numbers that decide it, drawn to scale — longer bar wins, the accent bar is the stronger figure.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| 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 |
| Release | 2019 | 2018 |
Sources — Lexar Professional 1667x SDXC UHS-II 128GB: americas.lexar.com (verified 2026-06-19). Sony TOUGH SF-G Series UHS-II SD 128GB: amazon.com (verified 2026-06-19).
What's the difference between the Lexar Professional 1667x SDXC UHS-II 128GB and Sony TOUGH SF-G Series UHS-II SD 128GB?
Where the two actually differ on the specs we track (4 of 7). Matching specs are omitted.
- 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
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
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, 1 lab-tested.)
Praised: Read speed matched the claimed spec almost exactly at 254MB/s; consistent and fast; Limited lifetime warranty; Available in capacities up to 256GB.
Flagged: 64GB minimum capacity, no smaller backup option; Write speed dropped about 20% to 101MB/s versus the 120MB/s claim; 4K video is the practical ceiling for filmmaking.
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, 1 lab-tested.)
Praised: Rugged sealed one-piece build: bend-proof, drop-proof, waterproof, dustproof; Measured 251MB/s read and 246MB/s write, described as very impressive; Built with professional use in mind, usable in harsh conditions.
Flagged: Costs noticeably more than rival cards, including the non-Tough version; No write-protect switch, a side effect of the sealed design; Capacity tops out at 128GB.