5. HTC Wildfire
Announced in May 2010, the HTC Wildfire shipped with Android 2.1 Eclair, which HTC later upgraded to 2.2. The phone had a 3.2-inch display, 512 MB of internal storage and a microSD card slot that supported up to 32 GB of external storage. The Wildfire sported a 5-megapixel camera and a 528 MHz Qualcomm processor. The phone was sometimes described as the mini HTC Desire.