Oppo A51F Manual page 24

The SAR limit of USA (FCC) is 1.6 W/Kg averaged
over one gram of tissue. Device
types OPPO A51f (FCC ID: R9C-A51F) has also
been tested against this SAR limit.
The highest SAR value reported under this standard
during product certification for use when properly
worn on the body is 0.728 W/Kg and for head is
0.512 W/Kg. Simultaneous RF exposure is 1.502W/
V0.1.1
Kg.
5 1 9 8 0 5 7