New Delhi, Oct. 17 -- Apple Watch Ultra 4 and Samsung Galaxy Watch Ultra 2 delivered closely matched distance and heart-rate readings in a half-marathon comparison, leaving phone compatibility as the reviewer's main buying distinction rather than a decisive tracking victory.

Tom's Guide reported that Apple's watch recorded 13.23 miles and Samsung's recorded 13.21 miles. The reviewer said both followed the course closely and triggered automatic laps near its distance markers. These are findings from one runner's race, not an Eastern Herald device test.

The Galaxy Watch Ultra2 returned an average heart rate of 160 beats per minute, against 159 for Apple's watch. An Oura Ring 5, used by the reviewer as a reference, returned 163. That leave...