Switching between defense mode and combat mode may become necessary if their stamina is too low, and if there is some recovery time necessary after receiving a blow.

因此在双方耐久度下降的时候，防御和进攻模式的转换就非常必要了。并且在受到打击之后会有一个恢复的时间。

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The more applications installed, the bigger the effect of Battery STAMINA Mode.

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Apps can be white-listed to ignore Stamina mode if required.

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Xperia ZL also includes Battery STAMINA Mode that significantly improves the battery standby time by automatically shutting down battery-draining apps whenever the screen is off and starting them up again when the screen is back on.

ENGADGET: Sony Xperia ZL goes on pre-order for US customers, off-contract: $720 for HSPA, $760 for LTE