FEATURES
Cero on Apple Watch
Your saved timers on your wrist, your heart rate through the session, and a countdown and stopwatch on hand
Cero comes with an Apple Watch app, so you can leave your phone in your bag. Your timers sync from your iPhone, and the Watch keeps time on its own.
On your wrist
- Run your saved simple and advanced timers.
- Start a quick timer: set work, rest and sets right on the Watch.
- Follow your heart rate through the session. Adaptive HR can use it to extend your rest and warn you during hard intervals.
- Feel every change with haptics, and hear Cero’s sounds.
- Use the standalone countdown, with four presets, and the stopwatch.
- Add Cero to your watch face as a complication, or in the Smart Stack.
Cero can save completed workouts and estimated calories to Apple Health, and automatic iCloud backups protect your saved timers and custom intervals.
YOUR NEXT SESSION STARTS HERE
Bring the effort.
We’ll keep the time.
Cero is free to download for iPhone, iPad and Apple Watch.
Download Cero
Cero is a timer, not a medical device. If you’re new to hard exercise, are pregnant or have a health condition, check with your doctor first, and stop if you feel unwell.