Select s8gps.
In addition to the core functions of Apple Watch, the S8 has added a new temperature sensor inside, one close to the skin and one under the screen, which can continuously detect body temperature at night with a frequency of 5 seconds and an accuracy of 0.1 ° C, generating a biphase body temperature curve, based on which the ovulation period can be estimated automatically, which can focus on serving women's health. It is also useful for women who want to plan for pregnancy and contraception.