## Signal/Battery Indicators

The mobile phone UI contains two important strength level indicators:

- Signal strength indicator
- Battery level indicator

Both indicators have the same structure. The signal strength and battery level icons are displayed beneath the strength levels. Strength levels are displayed by revealing the strength bitmap in sections. You can change the color of the icons and the level bitmaps, but the sections are predefined.
Note: Levels are animated when a device is charging. Animation consists of revealing the step levels from 0 to 7 repeatedly, until the battery is full. The signal network icon is displayed with a packet data indicator when the network is available and the mobile phone user has subscribed to it. The same icon color is used.
Note: Placement of the signal and battery indicator may vary in landscape mode.

### Signal Strength Indicator

The signal strength indicator is displayed on the top left corner of the screen. Optimum reception is indicated by having all seven levels revealed. No reception is indicated when no levels are displayed. It is important that levels are clearly indicated, as reception clarity and network availability may affect the mobile phone user's actions. Full screen applications, such as Pinboard, Speed dial and games, do not display signal strength indicators in portrait view.

### Battery level indicator

The battery level indicator is displayed only when the device is in idle mode or during power saving mode when the mobile phone is being charged. Like the signal strength indicator, the battery level indicator consists of seven levels. The indicator measures the available battery energy levels.