WhatsApp for Realme GT 5 Pro

On realme UI 6 the most common cause of WhatsApp battery drain is the app being woken constantly by sync and background activity. Go to Settings > Battery > Power usage (or Settings > Apps > App management > WhatsApp > Battery usage) and check whether WhatsApp shows high background drain. Set WhatsApp's background activity to a controlled mode rather than fully Unrestricted: Settings > Apps > App management > WhatsApp > and turn on 'Allow background activity' but leave 'Allow auto-launch' enabled only if you need instant notifications. Also open Settings > Battery and turn OFF 'High background power consumption' alerts only after you've confirmed the drain. If drain persists, clear WhatsApp's cache (WhatsApp > Settings > Storage and data > Manage storage) and reboot, since a stuck media sync is a frequent cause. See how others solved this on Reddit

Delayed WhatsApp notifications on realme UI almost always come from ColorOS background restrictions. Open Settings > Apps > App management > WhatsApp > Battery usage and enable 'Allow background activity' and 'Allow auto-launch'. Then go to Settings > Battery and make sure WhatsApp is excluded from any battery optimization or 'sleep' restriction. Finally, open Recent apps, swipe down on (or long-press) the WhatsApp card and tap the lock icon so the system won't clear it from memory. Also confirm notifications are allowed under Settings > Notifications and status bar > WhatsApp. See how others solved this on Reddit

The China ROM ships without Google Play Services and the Play Store, so WhatsApp push notifications won't work normally even if the app installs. Install Google Play Services and the Google Play Store manually (sideload matching APK/components and reboot), then install WhatsApp from the Play Store rather than a random APK so it registers correctly. After that, go to Settings > Apps > App management > Google Play Services and allow background activity and auto-launch, since WhatsApp's push delivery depends on Play Services running in the background. See how others solved this on Reddit

En realme UI 6 el consumo alto de WhatsApp suele deberse a que la app se mantiene activa por la sincronización en segundo plano. Ve a Ajustes > Batería > Uso de energía (o Ajustes > Aplicaciones > Gestión de aplicaciones > WhatsApp > Uso de batería) para confirmar el consumo. Activa 'Permitir actividad en segundo plano' y 'Permitir inicio automático' solo si necesitas notificaciones instantáneas, ya que dejarlo totalmente sin restricciones aumenta el gasto. Después borra la caché de WhatsApp (WhatsApp > Ajustes > Almacenamiento y datos > Gestionar almacenamiento) y reinicia el teléfono, porque una sincronización de medios bloqueada es una causa frecuente del consumo. See how others solved this on Reddit