Lexar ES3 review

Performance

The ES3’s 10 Gb/s connection is a sensible class for routine backups and moving a photo library. The advertised rates come from Lexar’s internal testing and depend on the host. They should not be treated as a minimum speed while filling the drive or copying thousands of small files.

We did not establish suitably documented original sustained-write testing for the selected configuration. That limits the case for recommending it for time-critical bulk transfers. For a periodic backup with no strict deadline, capacity and a dependable backup routine are likely to matter more.

Connectivity

The included cable accommodates both common computer connector types, which is useful when an older desktop and a newer laptop share the drive. The host still needs a 10 Gb/s data connection to approach the quoted speeds.

Lexar’s documentation specifically limits iPhone 15 and 16 compatibility to file transfers. Its compatibility guide marks ProRes recording unsupported for the ES3 even on the Pro phones. This is a clear reason to choose a recording-oriented model such as the Professional Go when direct capture is the actual task.

Design & Durability

The documented 1TB and 2TB drives use a slim format that is easy to slip into a computer bag. Lexar includes graphite layers intended to spread heat, but that construction detail is not independent proof of a particular sustained speed or operating temperature.

The two-meter drop claim comes from controlled manufacturer testing, and drop damage is excluded from warranty coverage. There is no established IP water-resistance rating here. Treat it as a portable everyday drive, with more explicitly protected alternatives for work around water and dust.

Software & Security

DataShield protects files through software; the advertised AES figure should not be turned into a claim of hardware encryption. Confirm that the software can unlock the files on every computer involved before building a shared workflow around it.

The Recovery Tool is a possible aid after accidental deletion, not a replacement for a second copy. Lexar does not guarantee complete recovery. A separate backup remains more dependable than hoping deleted material can be reconstructed later.

Alternatives

The Kingston XS1000 offers the same broad 10 Gb/s class in a lighter documented 28.7 g body. It is worth comparing for a small everyday file library when portability is the main consideration.

Lexar’s Professional Go is the more relevant alternative for supported iPhone ProRes recording, with an optional hub for accessories. Buy that added functionality only when the recording setup calls for it.

Verdict

The ES3 is a reasonable candidate for ordinary file movement and backups when its supplied cable and software are useful. Keep its recording limitation clear and avoid choosing it for unverified sustained performance. The 1TB and 2TB versions have the strongest documentation; the regional 512GB listing is included separately with its unresolved details.