Your smartwatch may be overestimating calories burned by 25 percent

One of a smartwatch’s main selling points can be its ability to track the calories burned while exercising. But similar to the health tech industry’s “10,000 steps” selling point, new research strongly suggests a wearable’s workout assessment may overestimate your efforts—and in some cases, the readings are off by as much as 25 percent.“You can’t treat the calories burned number it gives you as an accurate number, because it’s not,” Flo