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Change settings in this order: choose which phone notifications reach your wrist, decide whether the display should stay visible, enable only the health measurements you will use, then set quiet hours and sound behavior. These choices determine how interruptive the watch feels and how often you charge it. Menu names can vary with watch firmware, Mi Fitness version, phone software and region, so use the paths below as the current Xiaomi guidance and update both devices first.
Before changing anything: update the watch and Mi Fitness
Pair the watch in Mi Fitness, install available app and watch-firmware updates, and confirm that your phone meets the published compatibility baseline. Xiaomi’s Spain specification page lists Android 8.0 or later and iOS 14.0 or later for the Xiaomi Watch S5 46mm; availability of individual functions can still differ by region and software version. Check the regional specifications page for your market and the Xiaomi Watch S5 46mm FAQ for model-specific instructions.
Do not assume a setting on the watch can override a permission denied on the phone. Notifications, background operation and some synchronization features require both sides to be configured.
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Notification selection is the best first change because it affects interruptions immediately. Mirroring every phone alert can make the watch noisy; allowing only time-sensitive apps usually gives a more useful starting point.
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Enable selected apps in Mi Fitness
- Open Mi Fitness on the phone.
- Tap Device, then Notifications and calls, and open App notifications.
- Enable notification mirroring or select individual apps. Start with messaging, calendar, travel, security or other alerts that need attention away from the phone.
- On the watch, decide whether to enable Wake screen when notified. Leave it off if you want vibration without a bright screen, or enable it when seeing the alert immediately matters.
- If available in your software, use Notify only when worn to prevent alerts while the watch is off your wrist.
Xiaomi says the default watch behavior is vibration without lighting the display. Quick replies to notifications are not supported, so the watch is an alert and reading device rather than a full reply interface.
Check the phone’s own permissions
The phone must permit notifications for each selected app. It also needs to allow Mi Fitness the notification-access, Bluetooth and background permissions requested during setup. Android manufacturers use different names for battery optimization and autostart controls; exempt Mi Fitness from restrictions if alerts stop arriving after the screen has been off.
On iPhone, open Settings > Bluetooth, tap the information button beside the watch, and enable Share System Notifications when Xiaomi’s setup requires it. Also allow Mi Fitness notifications and Background App Refresh in iOS settings. If an iPhone alert works on the phone but not on the watch, revisit these permissions before changing watch settings.
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Notification troubleshooting checklist
- Confirm the app is enabled under Mi Fitness > Device > Notifications and calls > App notifications.
- Confirm the phone app itself is allowed to send notifications.
- Keep Bluetooth connected and Mi Fitness installed and signed in.
- Remove battery-saver or background restrictions applied to Mi Fitness.
- On iPhone, verify Share System Notifications and Background App Refresh.
- Test with the phone unlocked and locked; behavior can differ by operating-system policy.
2. Set display wake, Always-on display and auto-lock
Display behavior is the clearest convenience-versus-battery choice. A persistent clock is useful during meetings or workouts, while a screen that wakes only when needed gives longer runtime.
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Configure Always-on display
- On the watch, open Settings > Display > Always-on display.
- Turn AOD on or off.
- If you enable it, choose a schedule rather than leaving it active all day when you do not need constant visibility. Xiaomi’s documented default scheduled window is 08:00–22:00.
Xiaomi states that AOD shortens battery life. It can switch off when the watch is removed and when sleep is detected, so an apparently missing AOD screen is not necessarily a fault. Depending on the watch face, the display may use a face-specific AOD design or a system default.
Choose a screen timeout
Screen auto-lock is adjustable from 5 to 60 seconds, with 5 seconds documented as the default. Keep 5 seconds if accidental touches and battery conservation matter; choose a longer interval when you routinely read workout data or instructions without touching the screen. A longer timeout keeps the display lit after a deliberate wake, so use it together with your AOD decision rather than treating the controls as unrelated.
Practical display presets
| Priority | AOD | Auto-lock approach | What to expect |
|---|---|---|---|
| Longest practical runtime | Off | Keep the 5-second default | Raise or tap the watch to check the time. |
| Scheduled glanceability | On only during work or daytime hours | 5–10 seconds | The time remains visible when you need it without running AOD overnight. |
| Workout readability | Usually off unless constant visibility is essential | Increase toward 30–60 seconds temporarily | Metrics stay available between movements, with a noticeable battery cost. |
3. Enable health monitoring deliberately
More measurements are not automatically better. Turn on a feature because you will use its trend or reminder, not simply because it exists. Xiaomi describes four relevant areas in the Watch S5 FAQ: advanced sleep monitoring, all-day stress monitoring, all-day SpO₂ tracking and continuous heart-rate monitoring (Smart).
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Where the monitoring controls live
- Sleep: enable Advanced monitoring when detailed sleep information is worth the extra sensing.
- Stress: enable All-day monitoring if stress trends are useful to you.
- SpO₂: enable All-day tracking only when continuous oxygen-saturation trend data serves a clear purpose.
- Heart rate: choose Continuous monitoring (Smart) when more frequent readings justify the power use.
These are wellness measurements, not a diagnosis. Treat an unusual reading as a reason to follow appropriate medical advice rather than as a clinical conclusion.
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Understand the battery consequence
Continuous sensors use additional power. Xiaomi says low battery can turn continuous monitoring off; after charging or restarting, you may need to enable the feature again manually. If the watch is not lasting through your normal day, reduce monitoring frequency or disable features you do not consult before reducing useful notifications.
Start with one or two measurements, wear the watch through a normal week, and then add another feature if its information changes a decision you make. This produces a more useful configuration than enabling every sensor at once and accepting an unexplained runtime loss.
4. Configure Do Not Disturb, silent mode and vibration
Quiet-hour controls prevent the watch from competing with sleep, meetings or exercise. Watch-side DND works directly; synchronizing DND with the phone is conditional.
Turn on watch-side Do Not Disturb
- Open Settings > Sound and vibration > DND on the watch.
- Choose an immediate DND state or configure the schedule offered by your firmware.
- Test an incoming notification and an alarm so you know which events remain allowed on your version.
Xiaomi documents phone synchronization only for specified Xiaomi phone, watch, Mi Fitness and software combinations. On another phone, or on an older app or firmware version, synchronized schedules may not be supported even though DND on the watch works. Update first; if synchronization is still unavailable, use the watch’s own schedule.
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Use silent mode when vibration is enough
Silent mode changes incoming calls, app notifications and reminders to vibration. Alarm, ring and media volumes have separate controls, so lower one category without assuming the others changed. Adjust vibration strength or pattern if your software exposes those controls, and verify the result while wearing the watch rather than on a table.
5. Keep the most-used controls one swipe away
The control center provides quick controls for Raise to wake, silent mode, battery saver, DND and WLAN, as well as access to settings. Use these toggles for temporary changes: battery saver before a long day, DND for a meeting, or Raise to wake when you need frequent glances.
Quick controls do not replace phone permissions. Turning notification mirroring on in the control center cannot make an app appear if Mi Fitness or the phone has blocked it. Make permanent choices in the full settings and use the control center for exceptions.
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How Xiaomi’s battery figures should influence your choices
Xiaomi’s global FAQ reports laboratory estimates, not an independent endurance test. The scenarios include specified notification, monitoring, wake, workout, music and call routines, and your result will vary with settings, habits, temperature, signal conditions and software.
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| Xiaomi scenario | Published estimate | Important qualification |
|---|---|---|
| Maximum-battery usage | Up to 21 days | Reported by Xiaomi’s laboratories; excludes AOD power use. |
| Typical usage | Up to 14 days | Includes Xiaomi’s defined mix of monitoring, messages, workouts and other activity. |
| AOD usage | Up to 9 days | Also a Xiaomi laboratory estimate under its defined AOD scenario. |
Xiaomi further says AOD alone can use approximately 15%–20% of the battery within 24 hours and heart-rate monitoring alone approximately 15%–20% within 24 hours in Bluetooth mode. Those percentages are manufacturer figures under its conditions, not a promise for every wearer. Xiaomi describes AOD as capable of reducing the maximum estimate to about half, which is why display persistence and sensor frequency should be treated as deliberate trade-offs.
A simple way to diagnose unexpected drain
- Note the battery percentage at bedtime and after a normal day.
- Temporarily turn off AOD while leaving notifications unchanged.
- If drain remains high, reduce continuous heart-rate, stress, SpO₂ or advanced sleep monitoring one feature at a time.
- Check for a workout, music playback, call or weak-Bluetooth period that differs from your usual routine.
- Restore features individually so you know which change caused the improvement.
A sensible first-day setup sequence
- Update Mi Fitness and watch firmware, then confirm Bluetooth pairing.
- Enable only essential apps under Device > Notifications and calls > App notifications.
- Decide whether notification vibration should wake the screen and whether alerts should arrive only when the watch is worn.
- Leave AOD off initially, or schedule it for the hours when you genuinely need a constant clock.
- Keep the 5-second auto-lock unless your routine requires longer reading time.
- Enable the one health feature whose data you will actually review; add others after observing battery use.
- Set watch-side DND or silent mode for sleep and meetings, then test whether phone synchronization is supported.
- Use the control center for temporary battery saver, DND or Raise-to-wake changes.
When a setting or feature is missing
First identify whether the control is on the watch, in Mi Fitness or in the phone’s operating-system settings. Then update both apps and firmware, reopen Mi Fitness and check permissions. Menu labels can change between releases, and regional editions can expose different functions. The Spain specification page lists the platform baseline, while the global FAQ contains the device-specific paths and caveats; neither guarantees identical behavior on every phone model or in every country.
If a feature still does not appear after updates and permission checks, it may not be supported by your phone, region or current software combination. Use the watch-side alternative where one exists—for example, local DND instead of synchronized DND—and avoid treating a missing synchronization option as a hardware failure.
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