How to Check the Battery on Your Apple Watch

Keeping tabs on your Apple Watch battery is something you'll do dozens of times a week — whether you're heading into a long meeting, leaving for a run, or just wondering if you'll make it to bedtime without reaching for the charger. The good news is Apple gives you several ways to check it, and once you know where to look, it takes about two seconds.

The Fastest Way: Swipe Up on Your Watch Face

The quickest battery check happens directly on your wrist. From your watch face, swipe up to open the Control Center. The battery percentage is displayed as a green (or red, when low) indicator at the top of the screen.

This works on every Apple Watch model running watchOS 7 or later. On older watchOS versions, the layout is slightly different, but the Control Center swipe still surfaces the battery reading.

If your watch face is showing a complication (a small data widget on the dial), you can also add a dedicated battery percentage complication directly to your watch face. This keeps your charge level visible at a glance without any swiping at all. Not every watch face supports every complication type, so availability depends on which face you're using.

Check Battery from Your iPhone

Your iPhone can show your Apple Watch's battery level without you even raising your wrist. Two places to find it:

Batteries Widget

1. On your iPhone, swipe right from the home screen to open the Today View (or Widget View)
2. Scroll down to find the Batteries widget
3. It displays the charge level of your iPhone, Apple Watch, and any connected AirPods in one place

If you don't see the Batteries widget, scroll to the bottom of the widget panel and tap Edit to add it. Once added, it becomes one of the most consistently useful widgets on the device.

Watch App on iPhone

Open the Watch app on your iPhone and check the My Watch tab. The battery percentage for your paired watch appears near the top of the screen. This is useful when your watch isn't on your wrist or you want a quick confirmation before heading out.

Add a Battery Complication to Your Watch Face 🔋

For users who check battery constantly, adding a complication is the most efficient long-term solution. Here's how:

1. Long press on your watch face to enter edit mode
2. Tap Edit (or Customize on older watchOS versions)
3. Navigate to a complication slot
4. Scroll through available complications and select Battery

The complication displays a small arc or percentage reading depending on the face. Modular, Infograph, and Utility faces tend to offer the most flexibility for placing battery complications in prominent positions.

Not all watch faces support this — Hermès faces, some Nike faces, and the Portraits face have limited or no complication customization.

The Low Battery Indicator and Power Reserve Mode

When your Apple Watch battery drops to around 10%, the watch displays a red lightning bolt or a low battery alert, depending on watchOS version. At this point you'll be prompted to enable Low Power Mode (watchOS 9 and later) or Power Reserve (older versions).

These modes behave differently:

Low Power Mode is significantly more functional than the older Power Reserve — you retain access to core watch features, just with reduced background activity. Power Reserve essentially turns your watch into a basic clock until it's recharged.

Checking Battery Health (Not Just Current Charge)

There's an important distinction between current battery level (how much charge is left right now) and battery health (how much capacity your battery retains compared to when it was new).

To check battery health on Apple Watch:

1. Open the Watch app on your iPhone
2. Go to General → Usage → Battery Health

This shows your battery's maximum capacity as a percentage. A watch at 85% battery health can hold roughly 85% of the charge it could when new. Apple doesn't publish a specific threshold for when Watch batteries "need" replacement — unlike iPhone, which flags batteries below 80% — but noticeable degradation in daily range is a practical signal most users recognize on their own.

Battery health degrades gradually over charge cycles. How quickly depends on factors like how often the watch is charged, ambient temperature during charging, and whether it spends extended periods in extreme heat or cold.

Factors That Affect How Useful These Methods Are

Which battery-checking method works best isn't the same for every user. A few variables shape the experience:

• Watch face preference — If you use a face that doesn't support complications, you can't pin battery to the dial without switching faces
• watchOS version — Low Power Mode, updated Control Center layouts, and some complication types require recent software
• iPhone proximity — The Batteries widget only reflects real-time data when your watch and phone are in Bluetooth or Wi-Fi range of each other
• Watch model — Series 4 and earlier have smaller screens with fewer visible complication slots; newer models have more real estate and better readability
• Always-On Display — Series 5 and later can show the watch face (including battery complications) even when your wrist is down, making glance-based battery checks far easier

The combination of methods that works best depends on how you use your watch day-to-day, which face you've settled on, and how closely you want to track charge throughout the day. 🕐