Comment by gucci-on-fleek

I also monitor the bandwidth of each device on my network, and my numbers are much lower than his. The totals that I observed over the last 90 days:

  Device         Download     Upload
  ===========  ==========  =========
  Echo Show A   5.487 GiB  1.451 GiB
  Echo Show B   4.343 GiB  1.293 GiB
  Echo A        0.778 GiB  0.739 GiB
  Echo Dot      0.626 GiB  0.580 GiB
  Echo B        0.132 GiB  0.291 GiB
  -----------  ----------  ---------
  Total        11.366 GiB  4.354 GiB

Also note that both devices in the OP are called "echoshow", which means that they have a full LCD display that you could theoretically stream videos on (if you like watching videos on a 5" display with a terrible interface).