diff --git a/proposals/phone-ar-depth-gpu.html b/proposals/phone-ar-depth-gpu.html
index 1db45a915..e6d836894 100644
--- a/proposals/phone-ar-depth-gpu.html
+++ b/proposals/phone-ar-depth-gpu.html
@@ -102,6 +102,10 @@
 
         let options = {
           requiredFeatures: ['depth-sensing'],
+          depthSensing: {
+            usagePreference: ["gpu-optimized", "cpu-optimized"],
+            dataFormatPreference: ["float32", "luminance-alpha"],
+          }
         };
 
         navigator.xr.requestSession('immersive-ar', options).then((session) => {
diff --git a/proposals/phone-ar-depth.html b/proposals/phone-ar-depth.html
index 2289902ef..3a396ef32 100644
--- a/proposals/phone-ar-depth.html
+++ b/proposals/phone-ar-depth.html
@@ -102,6 +102,10 @@
 
         let options = {
           requiredFeatures: ['depth-sensing'],
+          depthSensing: {
+            usagePreference: ["cpu-optimized", "gpu-optimized"],
+            dataFormatPreference: ["luminance-alpha", "float32"],
+          }
         };
 
         navigator.xr.requestSession('immersive-ar', options).then((session) => {