diff --git a/projects/core/components/root/root.component.ts b/projects/core/components/root/root.component.ts
index 8a3bca5176c9..58f78d20056e 100644
--- a/projects/core/components/root/root.component.ts
+++ b/projects/core/components/root/root.component.ts
@@ -12,12 +12,8 @@ import {
     TUI_IS_MOBILE,
     TUI_VERSION,
 } from '@taiga-ui/cdk';
-import {TUI_IS_MOBILE_RES_PROVIDER} from '@taiga-ui/core/providers';
-import {
-    TUI_ANIMATIONS_DURATION,
-    TUI_IS_MOBILE_RES,
-    TUI_THEME,
-} from '@taiga-ui/core/tokens';
+import {TuiBreakpointService} from '@taiga-ui/core/services';
+import {TUI_ANIMATIONS_DURATION, TUI_THEME} from '@taiga-ui/core/tokens';
 import {combineLatest, Observable, of} from 'rxjs';
 import {debounceTime, map} from 'rxjs/operators';
 
@@ -28,17 +24,21 @@ import {debounceTime, map} from 'rxjs/operators';
     // So that we do not force OnPush on custom dialogs
     // eslint-disable-next-line @angular-eslint/prefer-on-push-component-change-detection
     changeDetection: ChangeDetectionStrategy.Default,
-    providers: [TUI_IS_MOBILE_RES_PROVIDER],
     encapsulation: ViewEncapsulation.None,
     host: {
         'data-tui-version': TUI_VERSION,
         '[style.--tui-duration.ms]': 'duration',
         '[class._ios]': 'isIOS',
         '[class._android]': 'isAndroid',
+        '[$.class._mobile]': 'isMobileRes$',
         '($.class._mobile)': 'isMobileRes$',
     },
 })
 export class TuiRootComponent {
+    readonly isMobileRes$ = this.breakpoint.pipe(
+        map(breakpoint => breakpoint === 'mobile'),
+    );
+
     readonly scrollbars$: Observable<boolean> =
         this.dialogs.length && !this.isMobile
             ? combineLatest([...this.dialogs]).pipe(
@@ -52,7 +52,7 @@ export class TuiRootComponent {
         @Inject(TUI_DIALOGS)
         readonly dialogs: ReadonlyArray<Observable<readonly unknown[]>>,
         @Inject(TUI_IS_MOBILE) private readonly isMobile: boolean,
-        @Inject(TUI_IS_MOBILE_RES) readonly isMobileRes$: Observable<boolean>,
+        @Inject(TuiBreakpointService) private readonly breakpoint: TuiBreakpointService,
         @Inject(TUI_IS_IOS) readonly isIOS: boolean,
         @Inject(TUI_IS_ANDROID) readonly isAndroid: boolean,
         @Inject(DOCUMENT) {body}: Document,
diff --git a/projects/core/providers/is-mobile-resolution.provider.ts b/projects/core/providers/is-mobile-resolution.provider.ts
index f68f343af8a6..113c34517fe2 100644
--- a/projects/core/providers/is-mobile-resolution.provider.ts
+++ b/projects/core/providers/is-mobile-resolution.provider.ts
@@ -2,6 +2,9 @@ import {ElementRef, Provider, SkipSelf} from '@angular/core';
 import {TUI_IS_MOBILE_RES} from '@taiga-ui/core/tokens';
 import {Observable} from 'rxjs';
 
+/**
+ * @deprecated: drop in v4.0
+ */
 export const TUI_IS_MOBILE_RES_PROVIDER: Provider = {
     provide: TUI_IS_MOBILE_RES,
     deps: [[new SkipSelf(), TUI_IS_MOBILE_RES], ElementRef],
diff --git a/projects/core/services/breakpoint.service.ts b/projects/core/services/breakpoint.service.ts
index bb60f2f98db2..d80f1440ef02 100644
--- a/projects/core/services/breakpoint.service.ts
+++ b/projects/core/services/breakpoint.service.ts
@@ -1,5 +1,5 @@
-import {Inject, Injectable} from '@angular/core';
-import {TUI_WINDOW_SIZE} from '@taiga-ui/cdk';
+import {Inject, Injectable, NgZone} from '@angular/core';
+import {TUI_WINDOW_SIZE, tuiZoneOptimized} from '@taiga-ui/cdk';
 import {TuiMedia} from '@taiga-ui/core/interfaces';
 import {TUI_MEDIA} from '@taiga-ui/core/tokens';
 import {Observable} from 'rxjs';
@@ -29,11 +29,13 @@ export class TuiBreakpointService extends Observable<TuiBreakpointMediaKey | nul
         map(({width}) => this.sorted.find(size => size > width)),
         map(key => this.invert[key || this.sorted[this.sorted.length - 1]]),
         distinctUntilChanged(),
+        tuiZoneOptimized(this.ngZone),
         shareReplay({bufferSize: 1, refCount: true}),
     );
 
     constructor(
         @Inject(TUI_MEDIA) private readonly media: TuiMedia,
+        @Inject(NgZone) private readonly ngZone: NgZone,
         @Inject(TUI_WINDOW_SIZE) private readonly size$: Observable<ClientRect>,
     ) {
         super(subscriber => this.stream$.subscribe(subscriber));