The unibody phone has a 4.3-inch curved glass AMOLED screen with no forward facing buttons; users double-tap to lock and unlock.

这款直板手机使用的是4.3英寸的弧面amoled屏幕，边缘没有物理按键，用户使用双击屏幕来锁屏或解锁。

youdao

You have their picture set as background or lock screen (or BOTH!) on your phone.

你把对方的照片设置为手机的背景或锁屏(或两者皆是)。

youdao

Smart phone must set the lock screen password, if you accidentally encounter the phone lost, at least to ensure that the first time the phone's data is not obtained.

智能手机一定要设置锁屏密码，如不小心遇到手机丢失的情况，至少能保证第一时间手机里的数据不被获取。

youdao

You can use the site to remotely ring phones, or to remotely lock the phone, and send lost phone message on the screen.

FORBES: CES: AT&T Unveils 4G Motorola, HTC, Samsung Phones; Confirms Motorola Plans Honeycomb Tablet

To that end, it has more system controls than the existing Facebook app, with permission to turn off the lock screen, start up when the phone boots and control your WiFi connection, among others.

ENGADGET

Generally, these manufacturer skins exist with the claimed goal of enhancing the platform's stock functionality, but we actually found a case on the Epic where the opposite is true: the phone's lock screen consists of a circle in the center of the screen that you drag up to unlock... and that's it.

ENGADGET: Epic 4G review