Network signal strength
Below you find a table explaining the different signal strength values for mobile data shown in the device charts window:
| Power level (dBm) | Signal strength |
|---|---|
| Greater than −60 | Excellent (you’re very close to a cell tower) |
| −60 to −75 | Very good (usually this is the best it gets) |
| −76 to −90 | Good (you’re in an area with decent coverage) |
| −91 to −100 | Fair (coverage is spotty, and may be slow) |
| −100 to −110 | Poor (very weak; you may be having connectivity problems) |
| Less than −110 dBm | No signal (you’re probably unable to make or complete a call) |