Lenovo Tab M8 3rd Gen Safety, Warranty & Quick Start Manual page 15

During use, the actual SAR values for your device are usually well below the values
stated. This is because, for purposes of system efficiency and to minimize interference
on the network, the operating power of your mobile device is automatically
decreased when full power is not needed for the data connection. The lower the
power output of the device, the lower its SAR value. If you are interested in further
reducing your RF exposure then you can easily do so by limiting your usage or simply
using a hands-free kit to keep the device away from the head and body.
13