Apple was the first to offer the so-called Continuity feature between the Mac OS X and iOS. The service itself is called Handoff and allows you to begin a task on a Mac machine and continue it on an iOS device, or vice versa. The Handoff works via Bluetooth and Wi-Fi, and the compatible apps automatically notify you for Handoff-enabled devices in close proximity. If there is such a device, you can continue browsing, writing mails, docs, or notes on another device. Windows 10 took a different approach with Continuum - thanks to the unified apps (a feature many were hoping Apple will...
Source: http://www.gsmarena.com/microsoft_may_add_handofflike_feature_on_windows_10-news-17494.php
