Originally Posted by
merlinextraligh
1) I know you can get an ANT+ dongle for a I phone, not sure if there's one for Android phones. But if you've got to buy a mount, and a dongle, you might as well get a Garmin 500.
2) A garmin 705 would work, but it's likely to still be more expensive than a Garmin 500. The cheaper 305 doesn't support power.
The 705 also didn't get any firmware updates that allow you to measure torque from a powermeter.
That can be important if your PT goes out of calibration.