Your data in the Philips Healthsuite health app shows past performance over time. This helps you spot patterns, and to correct them.
It is not possible delete your past data while still maintaining the same account. However, manually added data entered still that day can still be adjusted on the same day you entered it.
To adjust manual data,
If you close your account, however, all your data will be deleted. See FAQ on 'How do I delete my account?'