| CitadelCarAlarms.com | OnStar | LoJack | Entourage CIS | |
| Technology | GPS- and cellular-based tracking and control system. | GPS- and cellular-based tracking and control system. | Radio-controlled tracking system. | GPS- and cellular-based tracking system. |
| Advantages | Could locate a car and remotely slow it down and/or stop the car. Concealable tracking device. Could automatically notify owner of possible theft. No police report would be required to initiate recovery. Technology supports global coverage. Could transmit web camera images from the vehicle to the owner and authorities. | Can locate a car and remotely slow it down and/or stop the car. | Concealed tracking device. Early Warning Package can automatically notify owner of possible theft. No subscription fees. | Concealed tracking device. Can automatically notify owner of possible theft. Coverage includes United States and Canada. No police report required to initiate recovery. |
| Disadvantages | None | Conspicuous logo alerts thieves to the type of alarm system being used. Requires a police report to be filed and the authorities to contact OnStar before the service begins to locate the car. By then, sophisticated car thieves may have disabled the device. OnStar is a factory-installed option and cannot be installed by a retailer or dealer. | Requires a police report to initiate the recovery of the vehicle. Coverage is limited. Cannot slow down or stop the vehicle. | Cannot slow down or stop the vehicle. |
| Pricing | TBD | $199 yearly subscription | $995 (for Early Warning Package) | $399.95 + $59.95 installation fee $180 yearly subscription |