To save screen space, you could add an option to not show the /s part. It's up to the user to interpret what he sees : for me, something like ↓3.5M ↑148K is sufficient to know that my current speeds are 3.5 Mbits/s down and 148 Kbit/s up (or 3.5 Mbytes/s and 148 MBytes/s, depending on the settings).
To save screen space, you could add an option to not show the
/spart. It's up to the user to interpret what he sees : for me, something like↓3.5M ↑148Kis sufficient to know that my current speeds are 3.5 Mbits/s down and 148 Kbit/s up (or 3.5 Mbytes/s and 148 MBytes/s, depending on the settings).