Multitaskers rejoice: a new line of fitness equipment now comes equipped with a built-in Android browser to let you check your email, watch YouTube, run virtual races, or shop online, all while getting fit.

"Smart" fitness equipment was a hot topic at last week’s annual Google I/O developers conference in San Francisco, with manufacturers NordicTrack, ProForm, and FreeMotion unveiling their new iFit Live treadmills and elliptical machines.

Hop on an iFit treadmill, for example, and you can create a running route using Google Maps that simulates live road running. Or compete in a virtual race against other iFit Live users signed on at the same time. Runners select a race to join, from famous marathon courses to scenic 5K routes and press start on the treadmill to begin. After the finish line, each runner can compare his or her ranking and results to other iFit Live competitors.

Products currently available with the Android-based tablet console are NordicTrack Elite 9500 Pro ($1,999), ProForm TrailRunner 4.0 ($1,699),  ProForm Performance 1450 ($1,499), and FreeMotion 770 ($1,899).

Looking for a budget treadmill with lower tech features? Gold's Gym Maxx CrossWalk 650 is ideal for walkers and sells for $650/€485. The machine has plenty of programs, a quiet motor, and a good-size walking area, as well as nice cushioning and a power incline. Another option includes The Sole F85, which features a relatively low price point for a high-end machine ($2,000/€1,500), a long running surface, and a 15 percent incline.

Learn more about the smart treadmills and ellipticals:

Watch a video to see the iFit in action: