After the controversial launch of Dell's XPS 15 models, which were expected to include a fingerprint scanner, Dell has now added an option to include the scanner with all models. Both the XPS 13 and XPS 15 can be configured with the fingerprint scanner, and the upgrade is relatively cheap.
If you want to add the scanner to your configuration, which is fully compatible with Windows Hello that helps your to unlock PC or apps, it will cost you only $25. It is located about an inch below the arrow keys. You can configure and order the laptop from Dell's online store.