Open the Health app on your iPhone
Tap Browse
Tap Activity
Tap Steps
View your step count for today and other time periods
Make sure Motion & Fitness is enabled in Settings
Go to Settings
Tap Privacy & Security
Tap Motion & Fitness
Turn on Fitness Tracking
Turn on Health if needed
Carry your iPhone with you to track steps automatically
Use an Apple Watch if you want more accurate step tracking
Check the Health app regularly to monitor your step count