Tracking with set 10 second updates when in motion. The only device on the market with a set max update rate of every 10 seconds. The only thing faster is the optional 5 second update rate.
This service does not require a contract but you must purchase the subscription service in 3 month blocks. The billing period starts on the first day of the month and ends the last day of the month. Purchassing mid month requires adjusting the service period which will reduce the number of actual days of service depending on when the device is purchase in the month. This is a requiremnt of AT&T which prevents us from billing for 30 days from the date of purchase instead of from the first to last day of the month. Shipments may be delayed in order to arrive on the first of the month to provide the maximum service period.