diff --git a/tools/devops/automation/scripts/bash/clean-simulator-runtime.sh b/tools/devops/automation/scripts/bash/clean-simulator-runtime.sh
index ed23cf1193c..bef95e6402d 100755
--- a/tools/devops/automation/scripts/bash/clean-simulator-runtime.sh
+++ b/tools/devops/automation/scripts/bash/clean-simulator-runtime.sh
@@ -5,6 +5,11 @@
 set -o pipefail
 IFS=$'\n\t'
 
+# delete all watchOS simulators, we don't need them anymore
+for i in $(xcrun simctl runtime list | grep watchOS.*Ready | sed -e 's/.* - //'  -e 's/ .*//'); 
+  xcrun simctl runtime delete $i
+done
+
 xcrun simctl runtime list -j > simruntime.json
 cat simruntime.json