From $780, Backcountry.com
The draw: Now dual ANT+/Bluetooth Smart
Quarq is certainly one of the leaders in power meters, but until recently the company didn’t ship any Bluetooth Smart-compatible power meters. This meant that if you had a Suunto or Polar bike computer or watch, or wanted to use your phone, you were out of luck. But the DZero solves that with dual ANT+/Bluetooth Smart, plus the same reliability and accuracy you’ve seen from Quarq power meters in the past. Of note is Quarq’s unique factory temperature calibration that it performs on every unit that ships, which increases accuracy in outdoor riding.