Yes, the Units setting has three selections -> Imperial; Metric(Km), and Metric(M)
In the US we normally select Imperial, but you must be aware that the Mavic uses Metric internally and converts metric to imperial for most settings. HOWEVER, the are some setting that do NOT get converted in the GO/GO4 app. Some like RTH altitude is always in meters so multiply by three in the USA . The setting that are not converted WILL have the units designation (M).
So even though I use Imperial, settings like RTH Altitude,
and Max Altitude and Max Flight Distance are always in meters.....