|Release date||October 2009|
|Operating system||Android, officially 2.1, can be upgraded to custom 2.2 ROMS.|
|CPU||768 MHz ARMv6-capable processor, Underclocked to 528 MHz|
|Memory||192 MB DDR SDRAM (Some models have 256 MB)|
|Storage||Flash memory:  MB
microSD slot: supports up to 16 GB
|Display||320 x 480 px, 3.5 in (89 mm), HVGA, transflective TFT|
|Input||Capacitive touchscreen display, on-screen QWERTY keyboard, volume controls, 3-axis accelerometer, 4 front-facing physical buttons|
|Camera||3.2 megapixel CMOS Sensor with auto focus (Rear-Facing Camera)|
|Connectivity||WCDMA (3G) or GSM (2G) telephony network, Wi-Fi (802.11b/g), Bluetooth 2.0+EDR, USB Micro-B, A-GPS|
|Power||4.2 V 1150 mAh (4.3 Wh)
Internal rechargeable removable lithium-ion battery
|Dimensions||116 mm (4.6 in) (h)
62.5 mm (2.46 in) (w)
13.6 mm (0.54 in) (d)
|Weight||135 g (4.8 oz)|
The T-Mobile Pulse (Huawei U8220)(sold as the CHT8000 in Taiwan) is an Android-powered phone manufactured by Huawei and rebranded by T-Mobile. It is available in many markets including the UK and The Netherlands. Compared to many Android phones released at the time it was relatively low cost - originally selling for £185 in the UK, the Pulse achieved a minimum price of £19.99 + £10 top up on PAYG before being discontinued in April 2011. This made it one of the cheapest Android powered smartphones available at the time. The Pulse was also marketed as being the first Pay As You Go phone running the Android OS.
The Pulse was originally released with Android 1.5 heavily customised and branded by T-Mobile. It came with its own Home screen app, as well as various non-stock applications, including Documents To Go and RoadSync from DataViz.
Official firmware from the manufacturer, have been independently released by
As of June 2010, T-Mobile has provided some firmware releases for the Pulse:
Several custom ROMs have been created adding various features, including EXT2/3/4 file system support and Busybox preinstallation. The firmware from the Huawei u8230 has been ported to the Pulse to remove the T-Mobile branding, as well as other changes.
On 12 May, 2.1 was released on the Modaco Forums.
On 8 October, Tom G from the Modaco Forums ported a 2.2 beta of CyanogenMod 6. Latest available version is CM6.1RC2 0.40 Beta.