The National Hockey League (NHL) has integrated Apple Watch technology into its officiating system, providing referees with real-time game alerts. The NHL Watch Comms App, developed with Apple and Presidio, delivers haptic feedback on crucial in-game events. This innovation allows referees to stay focused on the action without frequently checking the arena clock.
The system, which has been in use throughout the 2024-2025 season, will make its outdoor debut during the Stadium Series match between the Detroit Red Wings and Columbus Blue Jackets at Ohio State University’s football stadium.
Keeping Eyes on the Game, Not the Clock
Previously, NHL officials had to rely on arena scoreboards, which often led to missed calls or delays. This issue was more pronounced in outdoor games, where clock placement varies.
With the NHL Watch Comms App, referees receive vibration alerts on their Apple Watches for:
- Period countdowns
- Power play expiration
- Penalty timers
Each notification has a distinct vibration pattern, enabling referees to recognize game events without looking away from the ice. This advancement helps reduce errors and improve reaction times during fast-paced moments.
How the Technology Works
The system relies on 25 data points from the NHL’s OASIS feed, a real-time tracking system monitoring game clock status, penalty timers, player positioning, and puck movement. Unlike traditional scoreboard reliance, the Apple Watches are equipped with cellular connectivity to ensure consistent data updates for officials.
However, in cases of Wi-Fi or cellular disruptions, referees must revert to manual timekeeping as a backup.
A Step Toward the Future of Officiating
The NHL has previously used Apple technology, equipping teams with iPads for real-time video analysis since 2017. Now, the focus has shifted to improving officiating.
Dave Lehanski, NHL Executive VP of Business Development & Innovation, hinted at future upgrades. Potential features include high-stick detection and goal-line tracking, which could further enhance accuracy and game flow.
Currently, over 90% of NHL referees have adopted Apple Watches. Those who haven’t are waiting on custom watch bands. As the league embraces wearable tech, it sets a new standard for officiating that could extend to other professional sports.
