Which is faster for everyday use?

The WD SN730, by a wide margin. Its 3,400 MB/s read is about six times the Fanxiang's 550 MB/s, so Windows boots, apps open and large files copy much faster.

Will the WD SN730 fit my laptop?

Only if the laptop has an M.2 2280 NVMe slot. The Fanxiang is a 2.5-inch SATA drive and needs a SATA bay and cable instead.

For Windows, Office and a few apps, yes. For games, video editing or a large photo library, 256 GB fills quickly; the Fanxiang's capacity is not stated, so check before buying it as a bigger drive.

The SN730 is rated at 200 TBW, which is a published endurance figure. Fanxiang gives no TBW rating, so there is no direct comparison; the 4.8 rating from 2,900 buyers is the only reliability signal for it.

Is the WD worth the extra money?

If your machine supports NVMe, yes: the speed gain is large. If you only have a SATA bay, the SN730 is not an option at any price.

Does either drive encrypt data?

The Fanxiang lists hardware encryption. The SN730's listing does not mention encryption, so use BitLocker or FileVault if you need it.

WD PC SN730 256GB NVMe SSD vs Fanxiang 2.5" SATA III SSD

Buy the WD PC SN730 if your machine has an M.2 NVMe slot and you want speed: it reads at up to 3,400 MB/s versus 550 MB/s for the Fanxiang. Buy the Fanxiang 2.5-inch SATA drive if you have an older laptop or desktop with only a SATA bay, or you want a cheap bulk-storage drive. The SN730 256 GB is $82.42 at TeciSoft as of November 6, 2026; no price was given for the Fanxiang.

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