Amazon's voice assistant, launched 2014 on the Echo smart speaker. Not officially available in mainland China, so Chinese articles typically reference it only when comparing with 小爱同学, 小度, and 天猫精灵. Usually written in its Latin form.
Alexa's parent company, whose Echo line made Alexa the first mass-market voice assistant and the reference design imitated by all three major Chinese smart-speaker brands.
