Garmin 1490LMT accuracy

Press the signal icon for a few seconds. The sat screen will pop.

Is there a reason to see this?

I agree with you since what you see is based on where you are and the time of day there is NO need to see that, only 3 are needed by the GPSr to get you there, seeing a whole bunch has nothing to do with accuracy for once again only 3 is all you need.

only 3 are needed by the GPSr to get you there, seeing a whole bunch has nothing to do with accuracy for once again only 3 is all you need.

Three satellites might seem enough to solve for position since space has three dimensions and a position near the Earth's surface can be assumed. However, even a very small clock error multiplied by the very large speed of light — the speed at which satellite signals propagate — results in a large positional error. Therefore receivers use four or more satellites to solve for both the receiver's location and time.

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Although four satellites are required for normal operation, fewer apply in special cases. If one variable is already known, a receiver can determine its position using only three satellites. For example, a ship or aircraft may have known elevation. Some GPS receivers may use additional clues or assumptions (such as reusing the last known altitude, dead reckoning, inertial navigation, or including information from the vehicle computer) to give a less accurate (degraded) position when fewer than four satellites are visible.

However, if a car-based GPS doesn't care about elevation then perhaps it might be able to get by with just three.