diff --git a/lib/socket.js b/lib/socket.js
index 85951e6a1..7495cde42 100644
--- a/lib/socket.js
+++ b/lib/socket.js
@@ -81,12 +81,6 @@ class Socket extends Emitter {
       this.opts.query = parseqs.decode(this.opts.query);
     }
 
-    // detect ReactNative environment
-    this.opts.isReactNative =
-      typeof navigator !== "undefined" &&
-      typeof navigator.product === "string" &&
-      navigator.product.toLowerCase() === "reactnative";
-
     // set on handshake
     this.id = null;
     this.upgrades = null;
diff --git a/lib/transports/websocket.js b/lib/transports/websocket.js
index dca9c46a6..aca259bee 100644
--- a/lib/transports/websocket.js
+++ b/lib/transports/websocket.js
@@ -7,6 +7,12 @@ const { WebSocket, usingBrowserWebSocket } = require("./websocket-constructor");
 
 const debug = require("debug")("engine.io-client:websocket");
 
+// detect ReactNative environment
+const isReactNative =
+  typeof navigator !== "undefined" &&
+  typeof navigator.product === "string" &&
+  navigator.product.toLowerCase() === "reactnative";
+
 class WS extends Transport {
   /**
    * WebSocket transport constructor.
@@ -47,26 +53,33 @@ class WS extends Transport {
 
     const uri = this.uri();
     const protocols = this.opts.protocols;
-    const opts = pick(
-      this.opts,
-      "agent",
-      "perMessageDeflate",
-      "pfx",
-      "key",
-      "passphrase",
-      "cert",
-      "ca",
-      "ciphers",
-      "rejectUnauthorized",
-      "localAddress"
-    );
+
+    let opts;
+    if (isReactNative) {
+      opts = pick(this.opts, "localAddress");
+    } else {
+      opts = pick(
+        this.opts,
+        "agent",
+        "perMessageDeflate",
+        "pfx",
+        "key",
+        "passphrase",
+        "cert",
+        "ca",
+        "ciphers",
+        "rejectUnauthorized",
+        "localAddress"
+      );
+    }
+
     if (this.opts.extraHeaders) {
       opts.headers = this.opts.extraHeaders;
     }
 
     try {
       this.ws =
-        usingBrowserWebSocket && !this.opts.isReactNative
+        usingBrowserWebSocket && !isReactNative
           ? protocols
             ? new WebSocket(uri, protocols)
             : new WebSocket(uri)