Last reviewed: August 22, 2026.
Short answer: Turning off Always On can increase Apple Watch battery life, but Apple does not publish one fixed number of extra hours for every model. The result depends on the watch, battery health, display settings, workouts, GPS, cellular use, temperature, and watchOS. Turning off Always On is most useful when display-related battery use is part of the problem, but it will not repair an aged battery or eliminate the power used by GPS and cellular connections.
How much battery can you save without Always On?
There is no reliable universal percentage or extra-hours figure. Apple says that turning Always On off can increase battery life, but actual runtime still depends on how the watch is configured and used. A watch used mainly for time checks may show a different change from one used for GPS workouts, cellular calls, frequent notifications, or a bright active display.
Use the calculator below as a planning comparison. It estimates the remaining runtime with Always On on or off using a model baseline and clearly stated usage assumptions. It does not read your watch, measure your battery, or reproduce an Apple laboratory test.
Apple Watch battery-life calculator without Always On
Select your Apple Watch model, choose whether Always On is enabled, enter your current battery percentage, and include GPS or cellular use if they are part of your typical day. The result is a range for the time remaining until the selected battery level. Change one setting at a time if you want to see which factor has the largest effect.
Apple Watch battery estimate without Always On
Compare an illustrative runtime range using your model, settings, and typical use.
Estimated battery life
About 15 to 19 hours
Estimated time from 50% to 10%: about 6 to 8 hours.
Turning Always On off in this example may add about 1 to 2 hours under the selected assumptions.
Always On support by Apple Watch model
Always On is not available on every Apple Watch. Apple currently lists Always On on Apple Watch Series 5 and later, Apple Watch SE 3, and Apple Watch Ultra and later. Older SE models and earlier Series models do not have the feature, so turning it off cannot create a battery saving on those watches.
| Model group | Always On availability | What to expect |
|---|---|---|
| Apple Watch Ultra and later | Available | Turning it off may reduce display-related power use, but GPS and cellular activity can still dominate the day. |
| Apple Watch Series 5 and later | Available | The potential change depends on display settings, notifications, workouts, battery health, and normal use. |
| Apple Watch SE 3 | Available | Always On can be managed in Display & Brightness on supported software. |
| Apple Watch SE 1 or SE 2 | Not available | There is no Always On setting to disable, so use other battery-saving steps instead. |
| Series 4 and earlier | Not available | Battery life must be assessed using battery health, usage, and connectivity settings. |
Check the exact model before comparing results. Apple’s support documentation is the best source for current feature availability, while model technical specifications provide the appropriate normal-use reference for that device.
What changes when Always On is turned off?
With Always On enabled, the watch face and other glanceable information remain visible at a dimmed brightness when your wrist is down. Apple explains that the display can be brought back to full brightness by raising your wrist or interacting with the screen. When Always On is disabled, the display is not kept visible in that state, so you generally need to raise your wrist, tap the screen, or use a button or the Digital Crown to wake it.
Turning off Always On does not automatically turn off your notifications, workouts, GPS, or cellular service. It changes the display behavior. Those other features can continue to use power, which is why the battery improvement may be modest on a day with a long GPS workout or heavy cellular use.
Why your result may differ from the calculator
The calculator uses an illustrative model rather than a measurement. Apple says that battery life is affected by the age of the watch and how it is used. Battery health, temperature, display brightness, notifications, background activity, GPS, cellular signal strength, apps, and watchOS processes can all move your real result above or below the range.
For a useful personal comparison, record your starting and ending battery percentages over several similar days. Keep the model, battery health, watchOS version, display settings, workout pattern, and connection conditions as consistent as possible. Compare one day with Always On enabled and another with it disabled instead of treating a single day as proof of a fixed saving.
How to turn off Always On
On a supported Apple Watch, open Settings, tap Display & Brightness, scroll to Always On, and turn the setting off. Apple’s current instructions and available options may change with watchOS, so use the official guide if the menu looks different.
You can also review which information appears while your wrist is down. Reducing unnecessary complications, Live Activities, notifications, or app information may help you find a balance between glanceable information and battery use.
When turning off Always On is worthwhile
Turning off Always On is worth trying when your watch reaches the end of the day with very little charge, when you want more margin for sleep tracking, or when you do not need to see the time without raising your wrist. It is a low-risk setting change that can be reversed whenever you prefer the convenience of a continuously visible display.
It may make little difference if the main drain comes from a long GPS workout, weak cellular coverage, frequent app use, high brightness, or a chemically aged battery. In those cases, turning off Always On can still help, but it should not be treated as the only diagnosis.
Troubleshooting fast battery drain
If the battery continues to drain quickly after Always On is disabled, check Battery Health and review the day’s activity. Keep the watch near its paired iPhone when possible, use Wi-Fi instead of cellular when appropriate, and look for long workouts, frequent notifications, background activity, high temperatures, or recently installed apps.
If the watch became worse immediately after a watchOS update, allow a few days for background update tasks to finish and then compare the battery again. If Battery Health shows a service warning, the watch becomes unusually hot, or the battery percentage drops unpredictably, contact Apple Support rather than relying on a display setting as a repair.
FAQs
Does turning off Always On improve Apple Watch battery life?
It can improve battery life because Apple says that turning Always On off can increase the time between charges. The amount is not fixed, and it may be difficult to notice on a day dominated by GPS, cellular, workouts, or an aged battery.
How many extra hours do you get without Always On?
There is no single answer that applies to every Apple Watch. Apple does not publish a universal number of extra hours for turning Always On off. Use the calculator as an illustrative comparison and test your own watch over similar days if you need a personal result.
Does turning off Always On affect workouts or notifications?
Turning off Always On changes the display behavior. It does not by itself disable workouts or notifications, but the screen may not remain visible while your wrist is down. GPS, cellular connections, notifications, and active apps can still use substantial power.
Does Apple Watch SE have Always On?
Apple lists Always On on Apple Watch SE 3. Older SE models do not have the same feature, so check the exact model before looking for the setting or estimating a saving.
Will turning off Always On fix a rapidly draining battery?
Not necessarily. It may reduce display-related power use, but it cannot restore lost battery capacity or correct a hardware, software, temperature, signal, or app problem. Check Battery Health and Apple’s current battery troubleshooting guidance if fast drain continues.
Method and limitations
The calculator uses an illustrative model baseline, a usage adjustment, battery health, current battery percentage, and optional GPS and cellular adjustments. Turning Always On off changes only the display-related factor when the selected model supports Always On. The output is deliberately shown as a range and is not an Apple-published prediction, a diagnostic result, or a guarantee of additional hours.
Apple’s own battery figures are measured under defined conditions. They should be used as reference points, not promises for every person’s watch. The most useful real-world comparison is a repeated test with the same watch, settings, temperature, activity, and connection conditions.
Official Apple sources
- Use the Always On feature with your Apple Watch
- If the battery in your Apple Watch drains too quickly
- Apple Watch Battery and Performance
- Extend the battery life on Apple Watch
Apple’s documentation may change as new Apple Watch models and watchOS versions are released. We review this guide periodically and update it when the relevant feature behavior, settings, or battery guidance changes. Check the “Last reviewed” date above for the most recent review.
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