(Pocket-lint) - Garmin has just announced an updated versions of its golfing watch. The new Approach S4 not only has 30,000 golf courses programmed in but now connects to your iPhone and displays notifications.

The Approach S4 gives precise distance to the front, back and middle of the green including layup, dogleg and shot distances while keeping track of stats on the digital scorecard. And thanks to free updates the 30,000 courses already built-in will grow as more are added internationally.

The Approach S4 connects to your iPhone (4S or above with iOS 7) via Bluetooth and displays calls, texts, voicemails and emails. That means you can leave your phone in your golf bag and focus on the game at hand.

A dedicated Green-View button takes you to the Green View screen where a true shape and layout of the green can be seen. The pin can be touched and dragged to the day's location for an exact measure of distance so swing power can be calculated perfectly. A Measure Shot feature helpfully calculates yardages for shots played anywhere on the course.

All this is crammed into a 58.4g body that is water resistant down to 10 metres and manages a 10-hour battery life when in golf mode. The Garmin Approach S4 will be available this month for £290.

Writing by Luke Edwards.