This is covered in the terms of service (you read those before using the device, right?): https://www.amazon.com/gp/help/customer/display.html?nodeId=GQFYXZHZB

This is covered in the terms of service (you read those before using the device, right?): https://www.amazon.com/gp/help/customer/display.html?nodeId=GQFYXZHZB2H629WN https://www.amazon.com/gp/help/customer/display.html?nodeId=... That doc also includes instructions for how to opt-out of this collection: > you may opt out of processing of your personal data relating to the use of your Kindle e-reader collected by the operating system of that device ("device usage data") for marketing and product improvement purposes via All Settings > Device Options > Advanced Options > Privacy. If you turn this setting off, we will stop processing this device usage data for the purposes of serving you customized marketing offers and improving our products and features. Turning this setting off will not affect... your ability to use features of the device, such as data syncing or backup features or Special Offers we display if you purchased a device that includes Special Offers, as we will continue to collect and process your data to deliver those features to you I'm interested to see whether this sort of biometric/behavioural data will ever be thought of as Personal Data under GDPR (since I bet you can identify someone from their browsing behaviour, just like you can using walking gait and typing cadence). If that was the case you'd need to present an opt-in when you first booted the device, which I think would resolve the complaints from most folks in this thread.