Cronicl is an independent Watch App, allowing you to quickly enter and track Health measurements. The App is integrated into the Apple Health App, and will save data to it. Set a daily Water consumption target and enter Water drunk against this. Add your Blood Pressure and check the change from your previous reading. New features will be added and can be requested at the below site. Any IAP are used to support development, and there will be no feature differences between the free app and any purchases.
New features can be requested through www.tamesas.co.uk/cronicl