A GPS tracker may remain connected to a vehicle every hour of the day, but that does not mean it consumes mobile data like a smartphone. Unlike a phone streaming videos, downloading social media content or loading websites, a conventional vehicle tracker mainly collects coordinates and selected vehicle information and transmits those records to a tracking server over the mobile network. Teltonika describes its tracking terminals as using GNSS to collect coordinates and GSM connectivity to transfer those coordinates to a server.

This distinction is important for vehicle owners who assume that continuous tracking must require several gigabytes of data every month. In reality, the location records transmitted by a conventional GPS tracker can be relatively small. What determines the final monthly consumption is how frequently the device creates records, how much information is included in each record and how often those records are transmitted to the server.

A vehicle tracker does not normally transmit the map that appears on your phone. The device sends information such as coordinates and other configured telemetry to the server, while the tracking platform uses that information to display the vehicle on a map for the authorised user. This is one reason a normal GPS tracker can operate using substantially less mobile data than applications involving photographs, audio or video.

The amount of information contained in each tracking record can vary considerably. Teltonika’s Codec 8 documentation states that a minimum AVL record can be about 45 bytes when optional I/O information is disabled, while records and packets can become larger as additional parameters are included. These additional parameters may include information relating to ignition, movement, GSM signal, speed, external voltage and other enabled inputs depending on the tracker and configuration.

Reporting frequency is therefore one of the biggest factors affecting mobile data consumption. A tracker configured to create and transmit frequent updates will naturally generate more data than one configured to report less often. Teltonika devices allow administrators to configure acquisition and sending behaviour using parameters such as time intervals, distance travelled, changes in angle and changes in speed.

Consider a simple illustration. If a tracker generated only a minimum-sized 45-byte location record every 30 seconds continuously for 30 days, the raw AVL information would amount to approximately 3.9 MB before considering network overhead, acknowledgements and additional telemetry. If the same minimum-sized record were generated every 10 seconds, the raw record volume would rise to approximately 11.7 MB over 30 days.

Those numbers should not be treated as a customer’s expected monthly bill. They are simply illustrations showing why GPS tracking can work with relatively compact amounts of information. Actual mobile data usage will be higher because communication also involves packet structure, network protocols, acknowledgements and potentially additional vehicle parameters.

The size of the individual record can change the calculation significantly. Using a much larger 255-byte record every 10 seconds throughout a 30-day month would already represent roughly 66 MB of raw record data, before communication overhead is added. This shows why two vehicles using similar GPS trackers can consume different amounts of mobile data when they are configured differently.

A tracker that reports every few seconds may be useful where very detailed live fleet visibility is required. A less demanding application may not need that frequency. A private vehicle that spends most of the night parked, for example, does not necessarily require the same data-acquisition behaviour as a commercial truck being monitored closely throughout a long-distance journey.

Professional vehicle trackers can also be configured differently depending on whether the vehicle is moving or stationary. Teltonika documents separate data-acquisition behaviour for moving and stopped states on some devices, allowing record creation to reflect how the vehicle is actually being used.

This can make the system more efficient. When a vehicle is parked securely for several hours, repeatedly transmitting the same location every few seconds may provide little additional operational value. When the vehicle starts moving, the system can collect information more frequently depending on how it has been configured.

Distance can also determine when a new tracking record is created. Some tracker configurations can be instructed to generate information after the vehicle travels a certain distance, while others can respond to changes in direction or speed. This allows fleet-management requirements to influence how much information the tracker produces rather than depending only on a fixed timer.

The number of vehicle parameters being monitored also matters. A basic tracker may primarily send location, ignition and movement information, while a more sophisticated telematics installation may collect additional inputs from the vehicle or connected accessories.

Each additional piece of telemetry contributes information to the tracking records. The result can be larger packets and greater data consumption, although the amounts remain very different from systems transmitting continuous video. Teltonika’s data protocol documentation shows that AVL records can contain multiple I/O elements in addition to the basic positioning information.

This distinction becomes important when comparing an ordinary GPS tracker with an AI dashcam or video telematics system. A standard tracker primarily communicates structured location and vehicle data, while a connected camera may also need to transmit images or video. Customers should therefore avoid assuming that the data requirements of a GPS tracker and an internet-connected dashcam are the same.

A vehicle’s daily operating pattern will also affect usage. A car driven for two hours each day may generate fewer movement records than a truck operating 18 hours a day if both devices are configured to acquire more records while moving.

This is one reason fleet operators should not judge expected data consumption only by the number of vehicles they own. The operating hours, routes, reporting frequency and information being collected can all affect the final figure.

Network interruptions can influence data transmission as well. When compatible tracking devices lose GSM or GPRS connectivity, they can continue saving records in internal memory and transmit stored information after connectivity returns. Teltonika documents this behaviour on several devices, noting that records can be saved during a period without network connectivity and sent after GSM/GPRS service is restored.

This means a tracker may temporarily appear offline without necessarily losing the journey information. When the device reconnects, it may need to send a backlog of stored records, creating a temporary burst of mobile data usage.

The fleet manager may therefore notice that data is not always transmitted at an identical rate throughout the month. Some days may involve continuous small transmissions, while another period may include the upload of records that were stored during poor network coverage.

Cross-border operations can introduce another consideration. Tracking devices may use different acquisition and sending behaviour when connected to a roaming mobile network, depending on their configuration. Teltonika documents Home, Roaming and Unknown data-acquisition modes on some trackers, with reporting settings capable of changing according to the mobile operator being used.

This can help fleet operators manage how trackers communicate when vehicles leave their normal network environment. Businesses operating trucks between Kenya and neighbouring countries should therefore confirm both roaming support and the reporting configuration used outside the home network.

Commands sent to the tracker can also use data. When a fleet manager sends instructions through the platform, changes device settings remotely or requests specific information, communication takes place between the server and tracker. The amounts involved in individual commands may be small, but they form part of the total communication load.

Remote firmware and configuration activities can add further data consumption. These events do not necessarily happen continuously, but they illustrate why the final SIM usage will not consist purely of latitude and longitude records.

For most vehicle owners, there is little value in trying to calculate every byte manually. The more important issue is whether the tracking provider has configured the SIM package and device reporting settings appropriately for the intended use.

A professionally configured system should balance visibility with efficiency. Updating too infrequently can reduce the usefulness of live tracking, while sending far more information than the application requires can consume unnecessary network resources.

Private vehicle security, commercial fleet management, fuel monitoring and high-risk cargo tracking may therefore justify different tracking configurations.

A private motorist may mainly need reliable real-time location, ignition alerts and trip history. A logistics company may require much more detailed reporting about vehicle movement throughout the day.

The correct configuration should follow the operational requirement rather than applying one identical setting to every customer.

Users should also understand that the mobile data used by the tracker and the mobile data used by their phone are separate things.

When a customer opens the tracking application on a smartphone, their phone uses its own internet connection to load the tracking interface and map. The tracker itself is separately communicating with the tracking server through the SIM or cellular connection installed or integrated with the device.

This is why opening the tracking app more frequently does not normally mean that the tracker suddenly begins using smartphone-style amounts of data. The tracker continues following its configured acquisition and transmission behaviour.

Customers should also be cautious about installing their own ordinary consumer SIM card into a professional tracker without understanding the required settings. The device may require correct APN, server, port and mobile-data configuration before it can communicate successfully with the tracking platform. Teltonika identifies incorrect APN or GPRS settings among common reasons a tracker may fail to send data to its server.

A tracking provider should therefore manage the communication side of the system as carefully as the physical installation. A perfectly installed tracker becomes far less useful if its SIM stops communicating or the required data service expires unexpectedly.

Fleet businesses should also monitor devices that suddenly stop reporting. An offline tracker may have lost network coverage, experienced a power problem, suffered a SIM-related issue or encountered another technical problem. Device status and communication history can help narrow down the cause before management assumes that the tracker itself has failed.

The main takeaway is that a conventional GPS tracker does not normally require enormous amounts of mobile data simply because it operates continuously. It sends compact digital records, and the total amount depends heavily on how frequently those records are created and how much telemetry is included. Teltonika’s protocol and acquisition documentation demonstrates how record size and reporting intervals can vary substantially between configurations.

For the customer, this means the better question is not simply, “How many megabytes does a GPS tracker use?”

The more useful question is, “How has my tracker been configured, what information is it sending and how frequently is it reporting?”

Those settings determine whether a tracking system is appropriate for a private car, a company vehicle or an entire commercial fleet.

Finatrack Global Ltd provides professionally installed GPS tracking and fleet telematics solutions for private vehicles and businesses operating vehicles in Kenya. Tracking systems can be configured according to the security and fleet-management requirements of the customer.

Professional installation can be arranged at the customer’s convenient location or at Vision Plaza, 1st Floor, Office 2, Mombasa Road, Nairobi. For GPS tracking solutions, contact Finatrack Global Ltd on 0723 645 810 or visit www.finatrack.co.ke.

A GPS tracker does not need to send a lot of data to tell you something very valuable.

It needs to send the right information, at the right time, reliably.