Do I need to keep my phone awake to mine Monero?

Yes—if you are mining Monero in your phone’s web browser, you should generally keep the screen on and the mining page open in the foreground. Locking your phone, switching apps, or letting the screen turn off may slow or pause the work, so do not assume mining continues while your phone sleeps.

Why your phone going to sleep matters

Your phone tries to save battery whenever you are not actively using it. Your browser also limits what a page can do when it is hidden or no longer in use.

Mining needs ongoing calculations. A browser miner may use web workers, which are helpers that run calculations separately from the page’s buttons and text. Those helpers do not give a website permission to run without limits in the background.

Several actions can interrupt mining:

• Turning off the screen: Your phone may suspend the browser.
• Switching to another app: The mining page becomes a background task and may get fewer resources or stop.
• Opening another browser tab: The hidden mining tab may be slowed or suspended.
• Turning on battery saver: Your phone may apply tighter limits.

The exact behavior depends on your phone, operating system, and browser. There is no universal promise that a browser miner will keep running with the screen off.

Keeping it awake is not a guarantee

For the best chance of uninterrupted browser mining, leave the mining page visible and temporarily increase your screen timeout—the delay before your screen turns off automatically. Lowering the brightness can reduce the screen’s power use, though mining itself still uses energy.

Some websites support a screen wake lock, a browser feature that asks your phone to keep the display on. It does not guarantee continuous mining. Your phone can release it, and it normally stops applying when you leave the page.

On Android, battery settings may affect background activity, but changing them does not guarantee screen-off mining. On an iPhone, you should not rely on a browser page continuing heavy calculations after you lock the device.

Avoid disabling your passcode or other security protections just to keep mining.

Check whether work is actually continuing

A page that still says “mining” after you unlock your phone is not proof it worked the whole time. Its display may have stopped updating while the browser was suspended.

Look for accepted shares—small pieces of completed work acknowledged by the mining service. If the service provides a record with times, check whether shares were accepted during the screen-off period, rather than only before and afterward.

Your hashrate, the number of mining calculations performed each second, can help too. But a number left on screen may be stale. Check fresh activity, not just the last displayed speed.

Balance screen time against heat and battery wear

Keeping your phone awake adds screen power use to an already demanding task. Monero’s mining method, RandomX, favors computer processors and is demanding for a phone.

Long sessions can cause heat, faster battery drain, and reduced speed as your phone protects itself. Charging while mining may add more heat. Stop if the device becomes unusually hot or shows a temperature warning, and do not leave it mining under bedding or in direct sun.

The bottom line

For browser mining, plan to keep your phone awake with the mining page visible. Treat screen-off mining as unreliable, verify actual accepted work, and put your phone’s temperature, battery health, and security first.