Android Quick Tip – WiFi

When on wifi on your Android phone, you may have noticed that once you switch off your screen, your wifi goes to sleep and wakes up to connect only once you wake up the screen. In the interim period when the phone wakes up and the wifi is yet to connect to any available network, you are using the data over your network.

There is a setting to make the phone not put the wifi to sleep every time you switch off the screen and avoid the network data usage. To enable this go to


Here, press the MENU button and choose


Here you can change the setting to let the wifi sleep with the phone on remain on when powered or remain on always.

This is the setting that determines your WiFi state when your phone is in sleep mode

Choose your desired Sleep state for WiFi

There will, obviously, be a compromise with battery life. I have, however, heard that WiFi uses less battery than 2G or 3G network data.

2 Responses to “Android Quick Tip – WiFi”

  1. October 4, 2010 at 5:42 PM #

    Interesting. I never noticed this setting. Wifi definitely uses lesser battery on the Nexus one than gprs/edge.

    • October 5, 2010 at 3:13 AM #

      @sharninder That's true. GPRS suck out my battery like no ones business. I can only imagine what will happen to the battery life when we get 3G.

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