Samsung Galaxy Watch Battery Draining Fast — What It Means & How to Fix It

What Does This Error Mean?

Your Samsung Galaxy Watch battery is not lasting as long as it should. The most common causes are the Always-On Display, frequent health monitoring, LTE cellular radio, or a recently installed app. Adjusting a few settings can significantly improve battery life.

Affected Models

Samsung Galaxy Watch 6
Samsung Galaxy Watch 6 Classic
Samsung Galaxy Watch 5
Samsung Galaxy Watch 5 Pro
Samsung Galaxy Watch 4

Common Causes

Always-On Display is enabled
Continuous heart rate monitoring set to every 1–2 minutes
LTE cellular is active when phone is nearby
Wi-Fi is enabled on the watch (uses power even when not needed)
Watch face uses many complications that poll data constantly
Battery degradation after extended use

How to Fix It

Turn off Always-On Display: watch Settings > Display > Always On Display > Off.

Always-On Display is the biggest single battery drain on Samsung Galaxy Watch, reducing battery life by 30–40%.
Change heart rate monitoring frequency: Samsung Health on phone > Settings > Watch settings > Heart rate > set to 'Every 10 minutes' instead of continuous.

Continuous heart rate monitoring keeps the optical sensor active constantly. Reducing frequency to every 10 minutes saves significant power.
Disable LTE when near your phone: pull down on watch > tap the LTE icon to switch to Bluetooth-only mode.

LTE uses far more power than Bluetooth. When your phone is nearby, there is no benefit to using LTE — switch to Bluetooth-only automatically in the Galaxy Wearable app.
Switch to a simpler watch face with fewer active complications.

Watch faces with live weather, heart rate, stock tickers, and calendar events poll data constantly. A simpler face with a clock and date only uses much less power.
Enable Power Saving mode temporarily: pull down the quick settings shade on the watch and tap Power Saving.

Power Saving mode limits features to extend battery when you know you will not be near a charger for a while.

When to Call a Professional

Samsung Galaxy Watch batteries can be replaced by authorised Samsung service centres. If your watch is more than 2 years old and does not reach 12 hours on a charge despite optimised settings, battery replacement will restore normal life.

Frequently Asked Questions

How long should Samsung Galaxy Watch battery last?

Galaxy Watch 6 is rated for about 40 hours on a charge (with AOD off) and about 30 hours with AOD on. Galaxy Watch 5 Pro is rated for up to 80 hours. If your watch is not reaching at least 70% of these figures, check your settings or consider a battery replacement.

Does GPS drain Galaxy Watch battery quickly?

Yes — GPS is one of the biggest battery drains on a Galaxy Watch. An outdoor workout with continuous GPS can use 30–40% battery per hour. For walking, use phone GPS via the connected phone to preserve watch battery.