Good marketing is vital for a successful product. The HTC Bolt had a winning sales pitch - gold medal winning, that is. With Usain Bolt, the world-famous sprinter, advertising this phone for Sprint, it was an ad exec's dream come true. But what of the HTC 10 evo? It's the same hardware, but without the star power.
Source: http://www.gsmarena.com/htc_10_evo-review-1571.php