Remember the HTC Desire 610? That had a 4.7″ qHD screen, Qualcomm Snapdragon 400 1.2 GHz quad-core CPU and 8GB on-board. The 620, however, has had a bit of an upgrade with a slightly bigger 5″ 720×1280 screen but similar specs everywhere else.
The 620 is now available on Three with prices starting at £17 to get the phone for free. That’ll get you 500MB of data, 300 minutes and unlimited texts. The phone itself has a 1.2GHz quad-core CPU, 1GB RAM, 8 megapixel rear camera, 5 megapixel front camera, 4G (well, of course), 8GB on-board storage (plus a microSD slot) and a 2100mAh battery.
This being Three, you get 4G for no extra cost. Below Three have done a comparison video with the 610 and this new 620..
https://www.youtube.com/watch?v=WZFGUvxUiIE&feature=youtu.be