How it works: Inside TAG Heuer’s innovative Calibre E4 Golf Edition watch

Pay a little bit too much attention to detail and it’s really easy to find yourself distracted by TAG Heuer’s Calibre E4 Golf Edition watch.

The luxury watchmaker’s newest golf offering is, simply, a supercomputer for your wrist. Every pixel on the Calibre E4’s vibrant 42-millimeter face is packed with the sort of real-time tracking information, health data and on-course feedback every golfer needs to get the most out of their game.

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TAG HEUER Connected Calibre E4 45MM Golf Edition Smartwatch

$2,750

This cutting-edge TAG Heuer Connected Watch pushes the boundaries of technology with technical improvements including a new automated shot-tracker, redesigned golf software and a magnetic ball marker built into the strap.

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Loads of digital data points guide your every course-management decision and swing, providing you with up-to-the-second info from tee to green.

But strap on the Calibre E4 and you’ll notice something surprising. These features — the ones worthy of mission control at NASA — turn out to be focus enhancers, not geek-out, on-course distractions. Yes, the E4’s tech is mind-boggling, but its application is anything but.

1. THE FACE

An OLED touchscreen is the E4’s ultimate wow. For golfers, the ultrasharp face displays course details, shot analysis and health data throughout your round, and its ceramic bezel helps keep score. When set to conventional timekeeping mode, the face is more crisp than your cleanest strike.

2. THE CROWN AND “PUSHERS”

Enhancing the touch-screen’s functionality are a steel crown and directional “pushers” that help you navigate the E4’s features.

3. THE HEART RATE MONITOR

Finding the right tech to track your game isn’t easy, but it’s easier with this sensor, which measures heart rate and calories burned. Tucked in behind it is the E4’s drill sergeant — a Qual-comm processor that meets your on-course demands with speed and efficiency — and an accelerometer and gyroscope that monitor the velocity, orientation and force of each swing.

4. THE BATTERY

A 330-milliamp power cell provides a day’s worth of biometric and golf tracking for even the most active golfer. Four sensors on the back of the E4 interface with a stand charger capable of a reload in 90 minutes.

5. THE APP

The whole operation comes together in TAG Heuer’s golf app, which includes distance and 2D hazard-mapping of some 40,000 courses worldwide, detailed stats on your round, overall performance and, most importantly, your health.

James Colgan

Golf.com Editor

James Colgan is a news and features editor at GOLF, writing stories for the website and magazine. He manages the Hot Mic, GOLF’s media vertical, and utilizes his on-camera experience across the brand’s platforms. Prior to joining GOLF, James graduated from Syracuse University, during which time he was a caddie scholarship recipient (and astute looper) on Long Island, where he is from. He can be reached at james.colgan@golf.com.