Digital Lap counters were first used at FINA World Championships in Kazan in 2015 and then in 800m and 1500m events at the Rio Olympics held in 2016.
While swimming in any competitive event, the biggest challenge of any swimmer is to keep an account of the number of laps one has completed. In earlier days, to inform swimmers, officials used to stand at one of the edges of the pool from where swimmers flip back and display the number of remaining laps, which means that they would have to shift their attention from the pool. Sometimes, officials get messed up with the cards and fail to display the exact number of laps to the swimmers who have to suffer. To skip from these kinds of flaws and distractions, engineers have installed a digital device named as Underwater Lap Counters which shows the exact number of laps left to be finished.
Underwater Lap Counters help swimmers to keep an account of time and laps completed while swimming, with all their concentration on competing rather than diverting attention to look out of the pool. The digital lap counters are placed at the bottom of each lane inside the pool. The Underwater Digital Lap Counters automatically update the lap count and display it when a swimmer hits the touchpad on the wall of the pool while turning back for the next lap. Underwater Lap Counters have been invented to improve the race experience of each swimmer.