The Smartphone Reinvented Around You | Windows Phone (United States)

Meet Cortana, your very own personal assistant

Meet Cortana, Here to help

Available on Microsoft Lumia 640

You could get a smartphone that just does the basics. Or you could get the Lumia 640 with Cortana, the personal assistant with proactive reminders, people-based reminders, and traffic alerts. All on a phone that’s fun and powerful enough for you to do just about anything.

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Get Cortana with

new Windows Phones

Now with the Lumia 635 or new HTC One® (M8) for Windows®, you’ll get your very own personal assistant. Cortana helps you keep appointments by checking your calendar and current traffic. And she keeps you close to those you care about with helpful, proactive reminders.

Buy now from Microsoft Store for ATT

Buy the HTC One (M8) for Windows

Siri vs Cortana

See how they compare

Unlike Siri, Cortana gets to know you by
learning your interests and looks out for
you, providing useful recommendations.
Click on the arrow to see how they compare.
Forgot your friend’s birthday?
Cortana reminds you just in time.

Cortana is the only digital assistant
with people based reminders that link
to calls, texts and emails. So you can get
a reminder to wish your friend a happy
birthday before picking up his call.

With Siri, you don’t get reminders with
incoming texts, calls or emails, so
when you forget you’ll have to call him
back with an apology.
Tired of running late? Cortana looks out for you.

Cortana’s traffic alerts keep you on
schedule. When the traffic is crawling,
she'll let you know to leave early for
your next appointment.

With Siri, you’ll have to remember to
check the traffic and directions before
you leave. Hope you’ve left enough time!
Need milk on the way home? Let Cortana remind you.

Cortana’s location based reminders
pop up when you are close to the store.
She’ll remind you about the milk and
to pick up your dry-cleaning next door.
It feels good to walk through the door
with everything in hand.

With Siri, you’ll have to remember to
check through all of your reminders. Not
convenient when you are on the road.
With Cortana…

You’ll have a truly personal assistant. She’ll remind you
about things like a friend’s birthday with people based
reminders and to leave on time with traffic reminders.
You’ll be reminded to swing into the store for the
things you need before driving past with location
based reminders. And with your inner circle and quiet
hours, Cortana will let important texts and calls
through. Siri just can’t do all of that.

Meet the world's most personal smartphone

Your Windows Phone truly comes alive when the things you love are put in it. People, places, songs, photos, and apps automatically update right on your Start screen. Plus, OneDrive is built in, so you can take your stuff virtually wherever you go. There’s never been a smartphone that’s more you.

See what's new with Windows Phone 8.1

The apps and games you want

The only phone with Live Apps, which bring the info you want right to your Start screen. Most apps are free or free to try, and they’re all certified.

Explore Apps+Games