diff --git a/packages/vue-app/template/client.js b/packages/vue-app/template/client.js
index 404517bc99..23b1079eaa 100644
--- a/packages/vue-app/template/client.js
+++ b/packages/vue-app/template/client.js
@@ -137,20 +137,21 @@ function mapTransitions (toComponents, to, from) {
 }
 <% } %>
 <% if (loading) { %>async <% } %>function loadAsyncComponents (to, from, next) {
-  // Check if route path changed (this._pathChanged), only if the page is not an error (for validate())
-  this._pathChanged = Boolean(app.nuxt.err) || from.path !== to.path
-  this._queryChanged = JSON.stringify(to.query) !== JSON.stringify(from.query)
+  // Check if route changed (this._routeChanged), only if the page is not an error (for validate())
+  this._routeChanged = Boolean(app.nuxt.err) || from.name !== to.name
+  this._paramChanged = !this._routeChanged && from.path !== to.path
+  this._queryChanged = !this._paramChanged && from.fullPath !== to.fullPath
   this._diffQuery = (this._queryChanged ? getQueryDiff(to.query, from.query) : [])
 
   <% if (loading) { %>
-  if (this._pathChanged && this.$loading.start && !this.$loading.manual) {
+  if ((this._routeChanged || this._paramChanged) && this.$loading.start && !this.$loading.manual) {
     this.$loading.start()
   }
   <% } %>
 
   try {
     <% if (loading) { %>
-    if (!this._pathChanged && this._queryChanged) {
+    if (this._queryChanged) {
       const Components = await resolveRouteComponents(
         to,
         (Component, instance) => ({ Component, instance })
@@ -268,7 +269,7 @@ function callMiddleware () {
 }
 <% } %>
 async function render (to, from, next) {
-  if (this._pathChanged === false && this._queryChanged === false) {
+  if (this._routeChanged === false && this._paramChanged === false && this._queryChanged === false) {
     return next()
   }
   // Handle first render on SPA mode
@@ -432,11 +433,17 @@ async function render (to, from, next) {
       // Check if only children route changed
       Component._path = compile(to.matched[matches[i]].path)(to.params)
       Component._dataRefresh = false
-      // Check if Component need to be refreshed (call asyncData & fetch)
-      // Only if its slug has changed or is watch query changes
-      if ((this._pathChanged && this._queryChanged) || Component._path !== _lastPaths[i]) {
+      const childPathChanged = Component._path !== _lastPaths[i]
+      // Refresh component (call asyncData & fetch) when:
+      // Route path changed part includes current component
+      // Or route param changed part includes current component and watchParam is not `false`
+      // Or route query is changed and watchQuery returns `true`
+      if (this._routeChanged && childPathChanged) {
         Component._dataRefresh = true
-      } else if (!this._pathChanged && this._queryChanged) {
+      } else if (this._paramChanged && childPathChanged) {
+        const watchParam = Component.options.watchParam
+        Component._dataRefresh = watchParam !== false
+      } else if (this._queryChanged) {
         const watchQuery = Component.options.watchQuery
         if (watchQuery === true) {
           Component._dataRefresh = true
@@ -584,7 +591,7 @@ function showNextPage (to) {
 // When navigating on a different route but the same component is used, Vue.js
 // Will not update the instance data, so we have to update $data ourselves
 function fixPrepatch (to, ___) {
-  if (this._pathChanged === false && this._queryChanged === false) {
+  if (this._routeChanged === false && this._paramChanged === false && this._queryChanged === false) {
     return
   }
 
diff --git a/test/dev/unicode-base.size-limit.test.js b/test/dev/unicode-base.size-limit.test.js
index f15198268e..1f1f46c1fe 100644
--- a/test/dev/unicode-base.size-limit.test.js
+++ b/test/dev/unicode-base.size-limit.test.js
@@ -20,7 +20,6 @@ describe('nuxt minimal vue-app bundle size limit', () => {
   it('should stay within the size limit range', async () => {
     const filter = filename => filename === 'vue-app.nuxt.js'
     const legacyResourcesSize = await getResourcesSize(distDir, 'client', { filter })
-
     const LEGACY_JS_RESOURCES_KB_SIZE = 15.7
     expect(legacyResourcesSize.uncompressed).toBeWithinSize(LEGACY_JS_RESOURCES_KB_SIZE)
   })
diff --git a/test/e2e/children.patch.browser.test.js b/test/e2e/children.patch.browser.test.js
index c21be63a1b..9c3bd69b83 100644
--- a/test/e2e/children.patch.browser.test.js
+++ b/test/e2e/children.patch.browser.test.js
@@ -27,7 +27,7 @@ describe('children patch (browser)', () => {
     })
   })
 
-  test('Loading /patch and keep ', async () => {
+  test('Loading /patch and keep', async () => {
     page = await browser.page(url('/patch'))
 
     const h1 = await page.$text('h1')
@@ -37,86 +37,119 @@ describe('children patch (browser)', () => {
     dates.patch = await page.$text('[data-date-patch]')
   })
 
-  test('Navigate to /patch/1', async () => {
-    const { hook } = await page.nuxt.navigate('/patch/1', false)
-    await hook
+  describe('refresh child component if param changed', () => {
+    test('Navigate to /patch/1', async () => {
+      const { hook } = await page.nuxt.navigate('/patch/1', false)
+      await hook
 
-    const h2 = await page.$text('h2')
-    expect(h2.includes('_id:')).toBe(true)
-    dates.id = await page.$text('[data-date-id]')
+      const h2 = await page.$text('h2')
+      expect(h2.includes('_id:')).toBe(true)
+      dates.id = await page.$text('[data-date-id]')
 
-    expect(dates.patch).toBe(await page.$text('[data-date-patch]'))
+      expect(dates.patch).toBe(await page.$text('[data-date-patch]'))
+    })
+
+    test('Navigate to /patch/2', async () => {
+      await page.nuxt.navigate('/patch/2')
+      const date = await page.$text('[data-date-id]')
+
+      expect(await page.$text('h3')).toBe('Index')
+      expect(dates.patch).toBe(await page.$text('[data-date-patch]'))
+      expect(+dates.id < +date).toBe(true)
+      dates.id = date
+    })
   })
 
-  test('Navigate to /patch/2', async () => {
-    await page.nuxt.navigate('/patch/2')
-    const date = await page.$text('[data-date-id]')
+  describe('resue component if only query is changed', () => {
+    test('Navigate to /patch/2?test=true', async () => {
+      await page.nuxt.navigate('/patch/2?test=true')
+      expect(dates.patch).toBe(await page.$text('[data-date-patch]'))
+      expect(dates.id).toBe(await page.$text('[data-date-id]'))
+    })
 
-    expect(await page.$text('h3')).toBe('Index')
-    expect(dates.patch).toBe(await page.$text('[data-date-patch]'))
-    expect(+dates.id < +date).toBe(true)
-    dates.id = date
+    test('Navigate to /patch/2#test', async () => {
+      await page.nuxt.navigate('/patch/2#test')
+      expect(dates.patch).toBe(await page.$text('[data-date-patch]'))
+      expect(dates.id).toBe(await page.$text('[data-date-id]'))
+    })
   })
 
-  test('Navigate to /patch/2?test=true', async () => {
-    await page.nuxt.navigate('/patch/2?test=true')
-    expect(dates.patch).toBe(await page.$text('[data-date-patch]'))
-    expect(dates.id).toBe(await page.$text('[data-date-id]'))
+  describe('refresh child component if param is changed', () => {
+    test('Navigate to /patch/2/child', async () => {
+      await page.nuxt.navigate('/patch/2/child')
+      dates.child = await page.$text('[data-date-child]')
+      dates.slug = await page.$text('[data-date-child-slug]')
+
+      expect(dates.patch).toBe(await page.$text('[data-date-patch]'))
+      expect(dates.id).toBe(await page.$text('[data-date-id]'))
+      expect(+dates.child > +dates.id).toBe(true)
+      expect(+dates.slug > +dates.child).toBe(true)
+    })
+
+    test('Navigate to /patch/2/child/1', async () => {
+      await page.nuxt.navigate('/patch/2/child/1')
+      const date = await page.$text('[data-date-child-slug]')
+
+      expect(dates.patch).toBe(await page.$text('[data-date-patch]'))
+      expect(dates.id).toBe(await page.$text('[data-date-id]'))
+      expect(dates.child).toBe(await page.$text('[data-date-child]'))
+      expect(+date > +dates.slug).toBe(true)
+      dates.slug = date
+    })
+
+    test('Navigate to /patch/2/child/1?foo=bar', async () => {
+      await page.nuxt.navigate('/patch/2/child/1?foo=bar')
+
+      expect(dates.patch).toBe(await page.$text('[data-date-patch]'))
+      expect(dates.id).toBe(await page.$text('[data-date-id]'))
+      expect(dates.child).toBe(await page.$text('[data-date-child]'))
+      expect(dates.slug).toBe(await page.$text('[data-date-child-slug]'))
+    })
+
+    test('Search a country', async () => {
+      const countries = await page.$$text('[data-test-search-result]')
+      expect(countries.length).toBe(5)
+
+      await page.type('[data-test-search-input]', 'gu')
+
+      await waitFor(250)
+      const newCountries = await page.$$text('[data-test-search-result]', true)
+      expect(newCountries.length).toBe(1)
+      expect(newCountries).toEqual(['Guinea'])
+      expect(await page.nuxt.routeData()).toEqual({
+        path: '/patch/2/child/1',
+        query: {
+          foo: 'bar',
+          q: 'gu'
+        }
+      })
+    })
   })
 
-  test('Navigate to /patch/2#test', async () => {
-    await page.nuxt.navigate('/patch/2#test')
-    expect(dates.patch).toBe(await page.$text('[data-date-patch]'))
-    expect(dates.id).toBe(await page.$text('[data-date-id]'))
-  })
+  describe('reuse child component if param is changed but watchParam is false', () => {
+    test('Navigate to /patch/2/reuse', async () => {
+      await page.nuxt.navigate('/patch/2/reuse')
+      dates.slug = await page.$text('[data-date-slug]')
 
-  test('Navigate to /patch/2/child', async () => {
-    await page.nuxt.navigate('/patch/2/child')
-    dates.child = await page.$text('[data-date-child]')
-    dates.slug = await page.$text('[data-date-child-slug]')
+      expect(dates.patch).toBe(await page.$text('[data-date-patch]'))
+      expect(dates.id).toBe(await page.$text('[data-date-id]'))
+      expect(+dates.child > +dates.id).toBe(true)
+    })
 
-    expect(dates.patch).toBe(await page.$text('[data-date-patch]'))
-    expect(dates.id).toBe(await page.$text('[data-date-id]'))
-    expect(+dates.child > +dates.id).toBe(true)
-    expect(+dates.slug > +dates.child).toBe(true)
-  })
+    test('Navigate to /patch/2/reuse/1', async () => {
+      await page.nuxt.navigate('/patch/2/reuse/1')
 
-  test('Navigate to /patch/2/child/1', async () => {
-    await page.nuxt.navigate('/patch/2/child/1')
-    const date = await page.$text('[data-date-child-slug]')
+      expect(dates.patch).toBe(await page.$text('[data-date-patch]'))
+      expect(dates.id).toBe(await page.$text('[data-date-id]'))
+      expect(dates.slug).toBe(await page.$text('[data-date-slug]'))
+    })
 
-    expect(dates.patch).toBe(await page.$text('[data-date-patch]'))
-    expect(dates.id).toBe(await page.$text('[data-date-id]'))
-    expect(dates.child).toBe(await page.$text('[data-date-child]'))
-    expect(+date > +dates.slug).toBe(true)
-    dates.slug = date
-  })
+    test('Navigate to /patch/2/reuse/2', async () => {
+      await page.nuxt.navigate('/patch/2/reuse/2')
 
-  test('Navigate to /patch/2/child/1?foo=bar', async () => {
-    await page.nuxt.navigate('/patch/2/child/1?foo=bar')
-
-    expect(dates.patch).toBe(await page.$text('[data-date-patch]'))
-    expect(dates.id).toBe(await page.$text('[data-date-id]'))
-    expect(dates.child).toBe(await page.$text('[data-date-child]'))
-    expect(dates.slug).toBe(await page.$text('[data-date-child-slug]'))
-  })
-
-  test('Search a country', async () => {
-    const countries = await page.$$text('[data-test-search-result]')
-    expect(countries.length).toBe(5)
-
-    await page.type('[data-test-search-input]', 'gu')
-
-    await waitFor(250)
-    const newCountries = await page.$$text('[data-test-search-result]', true)
-    expect(newCountries.length).toBe(1)
-    expect(newCountries).toEqual(['Guinea'])
-    expect(await page.nuxt.routeData()).toEqual({
-      path: '/patch/2/child/1',
-      query: {
-        foo: 'bar',
-        q: 'gu'
-      }
+      expect(dates.patch).toBe(await page.$text('[data-date-patch]'))
+      expect(dates.id).toBe(await page.$text('[data-date-id]'))
+      expect(dates.slug).toBe(await page.$text('[data-date-slug]'))
     })
   })
 
diff --git a/test/fixtures/children/layouts/patch.vue b/test/fixtures/children/layouts/patch.vue
index 1b5cdc7520..ae84f457b5 100644
--- a/test/fixtures/children/layouts/patch.vue
+++ b/test/fixtures/children/layouts/patch.vue
@@ -42,6 +42,21 @@
           /patch/2/child/1?query=true#test
         </NuxtLink>
       </li>
+      <li>
+        <NuxtLink data-test-id="patch-id-2-reuse" to="/patch/2/reuse">
+          /patch/2/reuse
+        </NuxtLink>
+      </li>
+      <li>
+        <NuxtLink data-test-id="patch-id-2-reuse-2" to="/patch/2/reuse/1">
+          /patch/2/reuse/1
+        </NuxtLink>
+      </li>
+      <li>
+        <NuxtLink data-test-id="patch-id-2-reuse-2" to="/patch/2/reuse/2">
+          /patch/2/reuse/2
+        </NuxtLink>
+      </li>
     </ul>
   </div>
 </template>
diff --git a/test/fixtures/children/pages/patch/_id/reuse/_slug.vue b/test/fixtures/children/pages/patch/_id/reuse/_slug.vue
new file mode 100644
index 0000000000..78f6cf0662
--- /dev/null
+++ b/test/fixtures/children/pages/patch/_id/reuse/_slug.vue
@@ -0,0 +1,20 @@
+<template>
+  <div>
+    <h4>
+      _slug: <i data-date-slug>
+        {{ date }}
+      </i>
+    </h4>
+  </div>
+</template>
+
+<script>
+export default {
+  watchParam: false,
+  asyncData () {
+    return {
+      date: Date.now()
+    }
+  }
+}
+</script>