What you need when you’re ready to invest:A treadmill that’s good for your healthYou want to lose weightA treadmill with a built-in batteryYou need a treadmill for runningThe best treadmill for beginnersThe best indoor/outdoor fitness gadgets for the whole familyThe best fitness gadgets to use with the kidsThe best online fitness apps for kidsHow to get started:Read our review of the Schwinn 860.