It’s not so much the hard drive itself, but what you can do with it. Once you get the 1TB Seagate Wireless Plus loaded with your movies and music, you can stream the content to up to eight devices simultaneously, whether they're Android, iOS or the Kindle Fire. Since last year, Seagate not only made its mobile app more intuitive, but added a ton of features. Now you can also save all those photos and videos from your smartphone to the drive. And when you get home, an app on Samsung Smart TV lets you watch whatever is on the Seagate Wireless Plus on your big screen. Best of all, its battery will last for up to 10 hours. Not bad for $199.