|Availability by country||December 2009 (UK)|
|Successor||Acer Liquid E|
|Dimensions||62.5 x 115 x 12.5 millimetres|
|Weight||135 grams (battery included)|
|Operating system||Android 1.6 Donut (Upgradeable to Android 2.1 Eclair)|
|CPU||Qualcomm QSD 8250 (Snapdragon), 768 MHz|
|Removable storage||microSD, microSDHC, TransFlash, SDIO|
|Battery||Li-Po 1350 mAh|
|Display||3.5" TFT LCD, capacitive touchscreen; 480x800 pixels|
|Rear camera||5 MP, 2560х1920 pixels, autofocus|
|Connectivity||Bluetooth 2.0 + EDR; Wi-Fi 802.11g, GPS with A-GPS|
|Other||Google turn-by-turn navigation|
The Acer Liquid A1 (S100) is a smartphone manufactured by Acer Inc. of Taiwan. It was launched on 7 December 2009 in the UK. The phone is Acer's first to use the Android operating system, backed by Google. It is also the world's first Android phone to use a Snapdragon processor.
Acer announced their intention to release an update for the Acer Liquid in the first half of 2010 that would upgrade the Android OS 1.6 version to version 2.1 (Eclair). The update finally came in July 2010.