Nuclear is a hybrid and information-rich watch face. In the upper part there is the date and just below the time in digital format (available in both 12h and 24h) and the time in an analog format including the seconds. In the lower part, there are the steps and the heart rate as a range and as a value. At the bottom, there is the percentage of battery. The color theme can be chosen through the settings among the six available. Tapping on the date, you can open the calendar app, above the digital time, you can open the alarm app while above the analog time there is a customizable shortcut. The Always On Display mode shows all the information of the standard mode except for the seconds.

Notes about Heart Rate detection.

The heart rate measurement is independent of the Wear OS Heart Rate application.
The value displayed on the dial updates itself every ten minutes and does not also update the Wear OS application.
During the measurement (which can also be triggered manually by pressing the part of the watch face between the time and the battery value) the heart icon blinks until the reading is completed.