On android phones you can activate a feature called pattern lock. this feature can be compared to a windows computer asking for password after the screen saver kicked
A smartphone, or smart phone, is a mobile phone built on a mobile operating system, with more advanced computing capability and connectivity than a feature phone.
Manual For Android Phone Huawei Model H866c
HUAWEI H866C Android Touch
14Huawei G530 quad-core Android 4.1 4.0 inch smart phones