2. Sony

Battery tips for this brand are different from Samsung. To access to battery saving, just follow: Setting–> Battery management. There are also two battery models for Sony smartphones: Stamina and Ultra Stamina. In the Stamina mode, all internet connection and date transfer are off, including 3G, Wifi, Bluetooth. But they are only turned off after the smartphone screen offs. Besides, other invisible apps will also be stopped to last the using time. Meanwhile, Ultra Stamina mode is often used when your smartphone battery comes nearly to Zero. If you start this mode, your smartphone will close all apps and transfer to simple display. You only see a contact menu, message, camera, album, setting, and other basic options. And of course, all internet connection will be off.

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