HTC Gratia Smartphone Features Android 2.2 Froyo OS Specs and ReviewsHere is the latest HTC Android Smartphone -HTC Gratia. The all new HTC Gratia is a mid range android smartphone with a 3.2-inch capacitive touchscreen display with resolution of 320 x 480 pixels. The new HTC Gratia smartphone runs the Google Android 2.2 Froyo Mobile OS along with HTC's Sense UI.While coming to the specifications