Sensitivity: Measured in dBm, this determines how well the chip can acquire and maintain a lock on satellite signals in weak-signal areas. High-sensitivity GPS chips are essential for reliable urban GPS tracking or asset tracking inside vehicles/metallic containers.
Time-To-First-Fix (TTFF) (⏱️): How quickly can the tracker get a valid location after being turned on? Cold start, warm start, and hot start times are crucial. Chips supporting Assisted GPS (A-GPS) dramatically improve TTFF by using network-delivered satellite data.
Power Consumption (
Lkgps