Amazon Alexa vs Cortana


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Amazon Alexa
Alexa lets you be more productive throughout your day and stay focused on important tasks. Alexa can help you manage your schedule, keep track of your to-do list, and set reminders. Alexa can automatically dial into your conference calls and make phone calls for you. Alexa can help quickly find information for you, like the latest sales data, or the inventory levels in your warehouse.
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Cortana
Cortana is your personal assistant on your Windows Phone. She's there to help make things easier for you and keep you up to date on the things that matter to you. Whether it’s to keep you looped in with your world or help you manage your everyday life, Cortana is there for you.
Face to face in the news:


2018 - Alexa-Cortana integration is now available



Microsoft now allows Alexa device owners to summon its own virtual assistant, Cortana, through their Echo devices, as well as call for Alexa via Cortana. Initially, customers will be able to call up Microsoft’s Cortana through their Echo devices and enable Amazon’s Alexa on Windows 10 devices and on Harman Kardon Invoke speakers. Later, it will arrive on mobile platforms like iOS and Android. Once enabled, the integration will allow Cortana users to ask Alexa to shop Amazon, manage their Amazon orders, and use some of Alexa’s third-party skills. Alexa users, meanwhile, will gain access to Cortana’s knowledge about productivity features including calendar management, their day at a glance, and their email.

2018 - Alexa gets smart meeting scheduling to challenge Cortana



Amazon's Alexa has made it easier for business users to manage personal schedules via voice commands, adding the ability to move appointments and schedule meetings based on participants’ availability.  While it was already possible to create and cancel appointments with Alexa, the Smart Scheduling Assistant feature gives users more control, cutting time and effort. To schedule a one-to-one meeting, a calendar must first be linked to a user’s Alexa account. So we may assume that Amazon Alexa provides better meeting scheduling than Cortana

2017 - Amazon Alexa comes to office to take on Cortana



Amazon launched its digital voice assistant Alexa for Business. She lets you be more productive throughout your day and stay focused on important tasks. Alexa can help you manage your schedule, keep track of your to-do list, and set reminders. Alexa can automatically dial into your conference calls and make phone calls for you. The push aims to extend the online giant’s wide lead over rivals like Apple's Siri, Google's Assistant, and Microsoft’s Cortana as competition heats up in a market that analysts say could transform the way people interact with technology. Alexa for Business Starter Kit that includes 7 smart speakers costs $709. So Amazon Alexa gets more business-ready in comparison to Cortana