diff --git a/src/com/android/settings/wifi/details2/WifiDetailPreferenceController2.java b/src/com/android/settings/wifi/details2/WifiDetailPreferenceController2.java
index ba7628e8b97..81bdab3bd89 100644
--- a/src/com/android/settings/wifi/details2/WifiDetailPreferenceController2.java
+++ b/src/com/android/settings/wifi/details2/WifiDetailPreferenceController2.java
@@ -88,7 +88,6 @@ import com.android.settingslib.widget.ActionButtonsPreference;
 import com.android.settingslib.widget.LayoutPreference;
 import com.android.wifitrackerlib.WifiEntry;
 import com.android.wifitrackerlib.WifiEntry.ConnectCallback;
-import com.android.wifitrackerlib.WifiEntry.ConnectedInfo;
 import com.android.wifitrackerlib.WifiEntry.DisconnectCallback;
 import com.android.wifitrackerlib.WifiEntry.ForgetCallback;
 import com.android.wifitrackerlib.WifiEntry.SignInCallback;
@@ -624,32 +623,12 @@ public class WifiDetailPreferenceController2 extends AbstractPreferenceControlle
     }
 
     private void refreshFrequency() {
-        final ConnectedInfo connectedInfo = mWifiEntry.getConnectedInfo();
-        if (connectedInfo == null) {
+        final String bandString = mWifiEntry.getBandString();
+        if (TextUtils.isEmpty(bandString)) {
             mFrequencyPref.setVisible(false);
             return;
         }
-
-        // TODO(b/190390803): We should get the band string directly from WifiEntry.ConnectedInfo
-        //                    instead of doing the frequency -> band conversion here.
-        final int frequency = connectedInfo.frequencyMhz;
-        String band = null;
-        if (frequency >= WifiEntry.MIN_FREQ_24GHZ && frequency < WifiEntry.MAX_FREQ_24GHZ) {
-            band = mContext.getResources().getString(R.string.wifi_band_24ghz);
-        } else if (frequency >= WifiEntry.MIN_FREQ_5GHZ && frequency < WifiEntry.MAX_FREQ_5GHZ) {
-            band = mContext.getResources().getString(R.string.wifi_band_5ghz);
-        } else if (frequency >= WifiEntry.MIN_FREQ_6GHZ && frequency < WifiEntry.MAX_FREQ_6GHZ) {
-            band = mContext.getResources().getString(R.string.wifi_band_6ghz);
-        } else {
-            // Connecting state is unstable, make it disappeared if unexpected
-            if (mWifiEntry.getConnectedState() == WifiEntry.CONNECTED_STATE_CONNECTING) {
-                mFrequencyPref.setVisible(false);
-            } else {
-                Log.e(TAG, "Unexpected frequency " + frequency);
-            }
-            return;
-        }
-        mFrequencyPref.setSummary(band);
+        mFrequencyPref.setSummary(bandString);
         mFrequencyPref.setVisible(true);
     }