Connect your iPhone, iPad, iPod touch, and Mac using Continuity
Continuity lets you seamlessly move between your iPhone, iPad, and Mac, or use them together.
Continuity features include Handoff, Phone Calling, Instant Hotspot, and SMS. You can start an email or document on iPhone, for example, and then pick up where you left off on your iPad. You can use your iPad or Mac to make and receive phone calls through your iPhone.
System Requirements
Handoff and Instant Hotspot
Handoff and Instant Hotspot are supported by the following Mac models, and require OS X Yosemite:
MacBook Air (Mid 2012 and later)
MacBook Pro (Mid 2012 and later)
iMac (Late 2012 and later)
Mac mini (Late 2012 and later)
Mac Pro (Late 2013)
Handoff is supported by the following iOS devices and requires iOS 8. Instant Hotspot requires one of these iPhone or iPad devices with cellular connectivity and iOS 8.1. Instant Hotspot also requires Personal Hotspot service through your carrier.
Phone 5 or later
iPhone 4s (sharing iPhone calls only)
iPad (4th generation), iPad Air, iPad Air 2
iPad mini, iPad mini with Retina display, iPad mini 3
iPod touch (5th generation)
Phone calling
Phone calling requires an iPhone with iOS 8 and an activated carrier plan.
Phone calling works with any iOS device that supports iOS 8 and any Mac that supports Yosemite.
SMS
SMS requires an iPhone with iOS 8.1 and an activated carrier plan.
SMS works with any iOS device with iOS 8.1, and any Mac that supports Yosemite.