In looking at the ad, Apple has clearly cut out much of the connection and load times. Now let's examine the reality of cell phone network speeds. As reported by tests done by Computer World, AT&T's network averaged download speeds of 755Kbit/sec. and average upload speeds of 484Kbit/sec. Computer World also included a 3 second network connection time. With this information, let's calculate the load time for an average 50kb page.
- Convert our download rate to Kb: 755/8 (8 bits in a byte) = 94.4 Kb/sec
- Download page time: 50 / 94.4 = 0.53 seconds
- Total time: connection time of 3 sec + download time of 0.53 seconds = 3.53 sec