Fleet managers have more than one way to connect vehicles to a telematics platform. Plug-in trackers collect information through an installed device, while OEM-connected platforms access supported data through the vehicle manufacturer’s cloud systems.

Both approaches can support fleet visibility. The differences become important when teams evaluate vehicle compatibility, installation requirements, available data, and the work involved in adding or replacing vehicles.

For fleets with compatible connected vehicles, OEM connectivity removes the need to deploy a separate tracker in each asset. Here’s how the approaches compare, and what to check before choosing one.

What Changes When Your Fleet Requires Separate Tracking Devices?

A plug-in tracker adds a physical device to each vehicle. Even when installation is straightforward, someone must receive the hardware, fit it, confirm that it is reporting correctly, and manage it when vehicles enter or leave the fleet.

Those tasks become part of the deployment process. Devices may also need troubleshooting, replacement, or reassignment over time.

OEM-connected telematics removes that additional device from compatible vehicles. Teams still need to confirm eligibility, complete authorization, and verify data access, but they do not need to coordinate a tracker installation for each supported asset.

How Does Installation and Ongoing Cost Compare?

The cost of telematics includes more than the monthly platform fee. Device-based deployments may involve 

- Purchasing or leasing tracking hardware.

- Shipping devices to the right locations.

- Installing, activating, and testing each device.

- Troubleshooting or replacing damaged, disconnected, or missing units.

- Recovering and reassigning devices when vehicles leave the fleet.

OEM-connected telematics avoids the additional tracking device and its associated installation work for compatible vehicles. Software subscriptions and connectivity charges may still apply.

The right comparison is the total cost of supporting your fleet: platform fees, hardware, installation effort, ongoing administration, and the coverage each approach provides.

How Does OEM Connectivity Handle Mixed-Brand or Electric Vehicle Fleets?

Different manufacturers expose vehicle data through different systems. An OEM-connected fleet platform brings supported information into a consistent interface, reducing the need to review each brand through a separate portal.

Standard Fleet brings available data from supported gas, hybrid, and electric vehicles into one platform. Depending on the integration, that may include location, odometer readings, fuel level, battery state of charge, tire pressure, and supported vehicle-health information.

A unified view does not mean every vehicle provides the same fields or capabilities. Fleet managers should confirm coverage for their actual vehicles and identify which information is available across the fleet.

What Vehicle Data Can Each Approach Provide?

Data availability depends on the vehicle and the connection—not simply whether the system uses an additional device.

Plug-in trackers may combine their own GPS and motion sensors with information available through the vehicle’s diagnostic connection. Capabilities vary by device and vehicle.

OEM-connected platforms access information the manufacturer makes available through its cloud APIs. Supported fields may include location, mileage, fuel or battery levels, tire pressure, and diagnostic information.

OEM connectivity can provide useful manufacturer-specific information without adding a tracker. However, it should not be assumed to expose every signal available inside the vehicle.

When comparing platforms, ask:

- Which data fields are available for each vehicle?

- How frequently are readings updated?

- Can you see when a reading was last received?

- What happens if connectivity is interrupted?

- Which reports and alerts can the platform build from that data?

The strongest option is the one that reliably provides the information your operation needs—not necessarily the one advertising the largest number of data points.

How Quickly Can a Software-First Telematics Platform Scale a Mixed Fleet?

Adding vehicles through OEM connectivity removes hardware shipping and installation from the onboarding process for compatible assets. That can simplify deployment when vehicles are spread across locations or regularly enter and leave the fleet.

The process generally includes:

1. Submitting VINs and confirming compatibility.

2. Completing the required ownership verification and authorization.

3. Activating supported connections.

4. Checking that the expected data is reaching the dashboard.

Activation timing varies by manufacturer and integration. A compatibility review helps teams plan the rollout and identify vehicles that may require another connection method.

When Might an Aftermarket Device Be the Better Fit?

OEM connectivity is not available for every vehicle or operational requirement. An aftermarket device may be appropriate when a vehicle lacks supported factory connectivity or when the fleet needs capabilities that are not available through the OEM integration.

Some fleets may use different connection methods across their vehicles. The goal is to achieve the required coverage and functionality without adding unnecessary complexity.

Before choosing a platform, check your vehicle mix and identify the data, reporting frequency, and additional equipment your operation requires.

Use the Connectivity Your Vehicles Already Have

For compatible fleets, OEM-connected automotive telematics removes the need to install and manage a separate tracking device. Supported vehicle data can flow into one platform, helping teams review activity, track usage, and manage daily operations.

The right choice depends on your vehicles and requirements. Start by confirming compatibility, available data, and onboarding steps, then compare the total effort and cost of each approach.

Learn how software-based telematics can support your fleet by booking a 15-minute demo today.