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I am working on an Android app where I need to, as accurately as possible, measure the download speed of the current connection. Here's the best method I could find so far (basically I start a timer, start downloading a Linux distro from a fast server, download around 200 kbytes, then stop the timer and check time elapsed and total bytes downloaded): try{ InputStream is = new URL("http://www.domain.com/ubuntu-linux.iso").openStream(); byte[] buf = new byte[1024]; int n = 0; startBytes = TrafficStats.getTotalRxBytes(); /*gets total bytes received so far*/ startTime = System.nanoTime(); while(n<200){ is.read(buf); n++; } endTime = System.nanoTime(); endBytes = TrafficStats.getTotalRxBytes(); /*gets total bytes received so far*/ totalTime = endTime - startTime; totalBytes = endBytes - startBytes; } catch(Exception e){ e.printStackTrace(); } After that I just need to divide the number of bytes transferred by the time taken and it will give the download speed in bps. Questions : 1. Will this method be accurate? 2. Do you know a better one? Thanks a lot.

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