diff --git a/packages/babel-preset-env/data/built-in-features.js b/packages/babel-preset-env/data/built-in-features.js
index 89d4474dadce..b8672b091ea5 100644
--- a/packages/babel-preset-env/data/built-in-features.js
+++ b/packages/babel-preset-env/data/built-in-features.js
@@ -277,7 +277,7 @@ const es = {
   "es6.string.from-code-point": "String static methods / String.fromCodePoint",
   "es6.string.includes": "String.prototype methods / String.prototype.includes",
   "es6.string.italics": "String.prototype HTML methods",
-  "es6.string.iterator": "String properties and methods / Property access on strings",
+  "es6.string.iterator": "String.prototype methods / String.prototype[Symbol.iterator]",
   "es6.string.link": "String.prototype HTML methods",
   // "String.prototype methods / String.prototype.normalize" not implemented
   "es7.string.pad-start": "String padding / String.prototype.padStart",
diff --git a/packages/babel-preset-env/data/built-ins.json b/packages/babel-preset-env/data/built-ins.json
index da7a181ce7f1..a22f5d446032 100644
--- a/packages/babel-preset-env/data/built-ins.json
+++ b/packages/babel-preset-env/data/built-ins.json
@@ -1183,16 +1183,14 @@
     "electron": "1.1"
   },
   "es6.string.iterator": {
-    "chrome": "5",
-    "opera": "10.10",
+    "chrome": "38",
     "edge": "12",
-    "firefox": "2",
-    "safari": "3.1",
-    "node": "0.10",
-    "ie": "8",
-    "android": "4.0",
-    "ios": "6",
-    "electron": "1.1"
+    "firefox": "36",
+    "safari": "9",
+    "node": "0.12",
+    "ios": "9",
+    "opera": "25",
+    "electron": "0.2"
   },
   "es6.string.link": {
     "chrome": "5",
diff --git a/packages/babel-preset-env/test/debug-fixtures/android/stdout.txt b/packages/babel-preset-env/test/debug-fixtures/android/stdout.txt
index f74f6151c9a1..a9ce8a7dea8a 100644
--- a/packages/babel-preset-env/test/debug-fixtures/android/stdout.txt
+++ b/packages/babel-preset-env/test/debug-fixtures/android/stdout.txt
@@ -129,6 +129,7 @@ Using polyfills with `entry` option:
   es6.string.ends-with { "android":"4" }
   es6.string.from-code-point { "android":"4" }
   es6.string.includes { "android":"4" }
+  es6.string.iterator { "android":"4" }
   es7.string.pad-start { "android":"4" }
   es7.string.pad-end { "android":"4" }
   es6.string.raw { "android":"4" }
@@ -149,4 +150,4 @@ Using polyfills with `entry` option:
   web.timers { "android":"4" }
   web.immediate { "android":"4" }
   web.dom.iterable { "android":"4" }
-Successfully compiled 1 file with Babel.
+Successfully compiled 1 file with Babel.
\ No newline at end of file
diff --git a/packages/babel-preset-env/test/debug-fixtures/builtins/stdout.txt b/packages/babel-preset-env/test/debug-fixtures/builtins/stdout.txt
index 2f431dd2ab43..d3b723ee32be 100644
--- a/packages/babel-preset-env/test/debug-fixtures/builtins/stdout.txt
+++ b/packages/babel-preset-env/test/debug-fixtures/builtins/stdout.txt
@@ -140,6 +140,7 @@ Using polyfills with `entry` option:
   es6.string.from-code-point { "ie":"10" }
   es6.string.includes { "ie":"10" }
   es6.string.italics { "ie":"10" }
+  es6.string.iterator { "ie":"10" }
   es6.string.link { "ie":"10" }
   es7.string.pad-start { "chrome":"54", "ie":"10", "node":"6" }
   es7.string.pad-end { "chrome":"54", "ie":"10", "node":"6" }
@@ -165,4 +166,4 @@ Using polyfills with `entry` option:
   web.timers { "chrome":"54", "ie":"10", "node":"6" }
   web.immediate { "chrome":"54", "ie":"10", "node":"6" }
   web.dom.iterable { "chrome":"54", "ie":"10", "node":"6" }
-Successfully compiled 1 file with Babel.
+Successfully compiled 1 file with Babel.
\ No newline at end of file
diff --git a/packages/babel-preset-env/test/debug-fixtures/electron/stdout.txt b/packages/babel-preset-env/test/debug-fixtures/electron/stdout.txt
index c0b392313f35..85f4e177155b 100644
--- a/packages/babel-preset-env/test/debug-fixtures/electron/stdout.txt
+++ b/packages/babel-preset-env/test/debug-fixtures/electron/stdout.txt
@@ -100,7 +100,6 @@ Using polyfills with `entry` option:
   es6.string.fontcolor { "electron":"0.36" }
   es6.string.fontsize { "electron":"0.36" }
   es6.string.italics { "electron":"0.36" }
-  es6.string.iterator { "electron":"0.36" }
   es6.string.link { "electron":"0.36" }
   es7.string.pad-start { "electron":"0.36" }
   es7.string.pad-end { "electron":"0.36" }
@@ -125,4 +124,4 @@ Using polyfills with `entry` option:
   web.timers { "electron":"0.36" }
   web.immediate { "electron":"0.36" }
   web.dom.iterable { "electron":"0.36" }
-Successfully compiled 1 file with Babel.
+Successfully compiled 1 file with Babel.
\ No newline at end of file
diff --git a/packages/babel-preset-env/test/debug-fixtures/specific-targets/stdout.txt b/packages/babel-preset-env/test/debug-fixtures/specific-targets/stdout.txt
index 3752cdf46ae9..8733b4c2341a 100644
--- a/packages/babel-preset-env/test/debug-fixtures/specific-targets/stdout.txt
+++ b/packages/babel-preset-env/test/debug-fixtures/specific-targets/stdout.txt
@@ -144,6 +144,7 @@ Using polyfills with `entry` option:
   es6.string.from-code-point { "ie":"10", "safari":"7" }
   es6.string.includes { "ie":"10", "safari":"7" }
   es6.string.italics { "ie":"10" }
+  es6.string.iterator { "ie":"10", "safari":"7" }
   es6.string.link { "ie":"10" }
   es7.string.pad-start { "chrome":"54", "edge":"13", "ie":"10", "ios":"9", "safari":"7" }
   es7.string.pad-end { "chrome":"54", "edge":"13", "ie":"10", "ios":"9", "safari":"7" }
@@ -169,4 +170,4 @@ Using polyfills with `entry` option:
   web.timers { "chrome":"54", "edge":"13", "firefox":"49", "ie":"10", "ios":"9", "safari":"7" }
   web.immediate { "chrome":"54", "edge":"13", "firefox":"49", "ie":"10", "ios":"9", "safari":"7" }
   web.dom.iterable { "chrome":"54", "edge":"13", "firefox":"49", "ie":"10", "ios":"9", "safari":"7" }
-Successfully compiled 1 file with Babel.
+Successfully compiled 1 file with Babel.
\ No newline at end of file
diff --git a/packages/babel-preset-env/test/debug-fixtures/usage/stdout.txt b/packages/babel-preset-env/test/debug-fixtures/usage/stdout.txt
index 423d048ecbe9..b3ecb28095c6 100644
--- a/packages/babel-preset-env/test/debug-fixtures/usage/stdout.txt
+++ b/packages/babel-preset-env/test/debug-fixtures/usage/stdout.txt
@@ -43,10 +43,11 @@ Using polyfills with `usage` option:
 [<CWD>/src/in.js] Added following polyfills:
   es6.promise { "ie":"11" }
   es6.map { "firefox":"50", "ie":"11" }
+  es6.string.iterator { "ie":"11" }
   es6.array.iterator { "ie":"11" }
   web.dom.iterable { "chrome":"52", "firefox":"50", "ie":"11" }
 
 [<CWD>/src/in2.js] Added following polyfills:
   regenerator-runtime { "chrome":"52", "firefox":"50", "ie":"11" }
   web.dom.iterable { "chrome":"52", "firefox":"50", "ie":"11" }
-Successfully compiled 2 files with Babel.
+Successfully compiled 2 files with Babel.
\ No newline at end of file
diff --git a/packages/babel-preset-env/test/debug-fixtures/versions-decimals/stdout.txt b/packages/babel-preset-env/test/debug-fixtures/versions-decimals/stdout.txt
index 9edbf1b6259a..35cba07b44bc 100644
--- a/packages/babel-preset-env/test/debug-fixtures/versions-decimals/stdout.txt
+++ b/packages/babel-preset-env/test/debug-fixtures/versions-decimals/stdout.txt
@@ -167,7 +167,7 @@ Using polyfills with `entry` option:
   es6.string.from-code-point { "ie":"10" }
   es6.string.includes { "ie":"10" }
   es6.string.italics { "electron":"0.36", "ie":"10" }
-  es6.string.iterator { "electron":"0.36" }
+  es6.string.iterator { "ie":"10" }
   es6.string.link { "electron":"0.36", "ie":"10" }
   es7.string.pad-start { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
   es7.string.pad-end { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
@@ -195,4 +195,4 @@ Using polyfills with `entry` option:
   web.timers { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
   web.immediate { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
   web.dom.iterable { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
-Successfully compiled 1 file with Babel.
+Successfully compiled 1 file with Babel.
\ No newline at end of file
diff --git a/packages/babel-preset-env/test/debug-fixtures/versions-strings/stdout.txt b/packages/babel-preset-env/test/debug-fixtures/versions-strings/stdout.txt
index ded27be01c08..fa70be96c6a2 100644
--- a/packages/babel-preset-env/test/debug-fixtures/versions-strings/stdout.txt
+++ b/packages/babel-preset-env/test/debug-fixtures/versions-strings/stdout.txt
@@ -140,6 +140,7 @@ Using polyfills with `entry` option:
   es6.string.from-code-point { "ie":"10" }
   es6.string.includes { "ie":"10" }
   es6.string.italics { "ie":"10" }
+  es6.string.iterator { "ie":"10" }
   es6.string.link { "ie":"10" }
   es7.string.pad-start { "chrome":"54", "ie":"10", "node":"6.10" }
   es7.string.pad-end { "chrome":"54", "ie":"10", "node":"6.10" }
@@ -165,4 +166,4 @@ Using polyfills with `entry` option:
   web.timers { "chrome":"54", "ie":"10", "node":"6.10" }
   web.immediate { "chrome":"54", "ie":"10", "node":"6.10" }
   web.dom.iterable { "chrome":"54", "ie":"10", "node":"6.10" }
-Successfully compiled 1 file with Babel.
+Successfully compiled 1 file with Babel.
\ No newline at end of file
diff --git a/packages/babel-preset-env/test/fixtures/preset-options-add-used-built-ins/promise-all/output.mjs b/packages/babel-preset-env/test/fixtures/preset-options-add-used-built-ins/promise-all/output.mjs
index 8cbb78b643ca..2a50ee751f7d 100644
--- a/packages/babel-preset-env/test/fixtures/preset-options-add-used-built-ins/promise-all/output.mjs
+++ b/packages/babel-preset-env/test/fixtures/preset-options-add-used-built-ins/promise-all/output.mjs
@@ -1,5 +1,6 @@
 import "core-js/modules/web.dom.iterable";
 import "core-js/modules/es6.array.iterator";
+import "core-js/modules/es6.string.iterator";
 import "core-js/modules/es6.promise";
 var p = Promise.resolve(0);
 Promise.all([p]).then(function (outcome) {
diff --git a/packages/babel-preset-env/test/fixtures/preset-options-add-used-built-ins/promise-race/output.mjs b/packages/babel-preset-env/test/fixtures/preset-options-add-used-built-ins/promise-race/output.mjs
index cd121f34f7ac..099125598ebe 100644
--- a/packages/babel-preset-env/test/fixtures/preset-options-add-used-built-ins/promise-race/output.mjs
+++ b/packages/babel-preset-env/test/fixtures/preset-options-add-used-built-ins/promise-race/output.mjs
@@ -1,5 +1,6 @@
 import "core-js/modules/web.dom.iterable";
 import "core-js/modules/es6.array.iterator";
+import "core-js/modules/es6.string.iterator";
 import "core-js/modules/es6.promise";
 var p = Promise.resolve(0);
 Promise.race([p]).then(function (outcome) {
diff --git a/packages/babel-preset-env/test/fixtures/preset-options/ie-11-built-ins/output.mjs b/packages/babel-preset-env/test/fixtures/preset-options/ie-11-built-ins/output.mjs
index 1bfd7e33457a..8ace0aa1e2e8 100644
--- a/packages/babel-preset-env/test/fixtures/preset-options/ie-11-built-ins/output.mjs
+++ b/packages/babel-preset-env/test/fixtures/preset-options/ie-11-built-ins/output.mjs
@@ -94,6 +94,7 @@ import "core-js/modules/es6.string.fontsize";
 import "core-js/modules/es6.string.from-code-point";
 import "core-js/modules/es6.string.includes";
 import "core-js/modules/es6.string.italics";
+import "core-js/modules/es6.string.iterator";
 import "core-js/modules/es6.string.link";
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
diff --git a/packages/babel-preset-env/test/fixtures/preset-options/use-builtins-ie-9/output.mjs b/packages/babel-preset-env/test/fixtures/preset-options/use-builtins-ie-9/output.mjs
index d7da81c92861..a0f5cab60787 100644
--- a/packages/babel-preset-env/test/fixtures/preset-options/use-builtins-ie-9/output.mjs
+++ b/packages/babel-preset-env/test/fixtures/preset-options/use-builtins-ie-9/output.mjs
@@ -96,6 +96,7 @@ import "core-js/modules/es6.string.fontsize";
 import "core-js/modules/es6.string.from-code-point";
 import "core-js/modules/es6.string.includes";
 import "core-js/modules/es6.string.italics";
+import "core-js/modules/es6.string.iterator";
 import "core-js/modules/es6.string.link";
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";