S5 vs S7: Which tracker is right for your car?

Key Takeaways:

• S5 Trackers offer maximum protection for high-risk vehicles.

• S7 trackers provide affordable, insurance-approved recovery.

• Your insurance may dictate the required tracker type.

• Choosing the right tracker depends on risk, budget, and policy.

If you own a high-value or high-performance car, you’ll get to enjoy a thrilling motoring experience – one that a thief might want to take from you. That means understanding the difference between S5 and S7 vehicle trackers.

Vehicle theft is a growing concern for many of us and to combat this, car trackers have become a cornerstone of modern vehicle security.

These devices, which have certification from the UK’s leading car security authority, Thatcham Research, help recover stolen vehicles and often satisfy insurance requirements for car theft cover.

The two primary categories today are S5 and S7 trackers, which have replaced the older Cat 5 and Cat 6 terminology.

Here, the car security experts at ghostinstallations.co.uk compare S5 trackers and Category S7 trackers, helping you decide which is best for your vehicle based on its risk profile and your insurer’s demands.

What is an S5 tracker?

Category S5 trackers are the pinnacle of Thatcham-approved vehicle tracking systems, designed for maximum security. These devices are packed with advanced features, making them ideal for high-value or high-performance vehicles like Range Rovers, Porsches and premium BMWs, which are prime targets for thieves. Key features include:

• Automatic Driver Recognition (ADR): S5 trackers require a driver to carry an ADR fob or tag. If the vehicle is started without the tag present, the system detects an unauthorised driver and sends an alert to a monitoring centre
• 24/7 monitoring: A dedicated control centre tracks the vehicle’s location in real-time, ensuring swift action if theft is suspected
• Optional remote engine immobilisation (S5 Plus): Some S5 trackers, often labelled S5 Plus, allow police-authorised remote immobilisation of a stolen vehicle, preventing it from being driven further once stopped safely
• Extra security features: S5 trackers often include tamper alerts if the device is interfered with and tow-away alerts which detects unauthorised movement, even if the engine isn’t running – which can be a boon if you aren’t at home, for example, when car thieves strike.

These features make S5 trackers the go-to choice for owners seeking robust protection and for insurers covering high-risk vehicles.

What is an S7 tracker?

Category S7 trackers are GPS-based devices that focus on effective stolen vehicle recovery without the advanced driver verification of S5 systems. They are a popular choice for mid-range vehicles or owners wanting a cost-effective, insurance-compliant solution. Key features include:

• GPS tracking: S7 trackers provide accurate, real-time location data, enabling authorities to locate and recover a stolen vehicle
• Theft alerts: If the vehicle is moved without authorisation, the tracker sends an alert to a monitoring centre
• Affordability: S7 trackers tend to be less expensive than S5 systems, both in terms of upfront cost and subscription fees for monitoring services.

While S7 trackers lack ADR functionality, meaning they cannot verify the driver’s identity, they still meet Thatcham’s stringent standards for stolen vehicle recovery. They’re considered the entry-level option for insurance-approved trackers, offering reliable protection at a lower cost.

The differences between S5 vs S7 trackers

Understanding the differences between S5 and S7 trackers is crucial for choosing the right system. Here’s a side-by-side comparison:

 

Feature	S5 Tracker	S7 Tracker
Automatic Driver Recognition (ADR)	Yes – requires driver ID tag; alerts if absent	No – cannot verify driver identity
GPS Tracking	Yes – real-time location tracking	Yes – real-time location tracking
24/7 Monitoring	Yes – dedicated control centre	Yes – dedicated control centre
Remote Immobilisation	Optional (S5 Plus) – police-authorised	No
Tamper Alerts	Yes – detects device interference	Limited or none
Tow-Away Alerts	Yes – detects unauthorised movement	Limited or none
Cost	Higher – due to advanced features and subscription	Lower – more affordable option

The standout difference is the ADR feature in S5 trackers. If a thief uses a cloned key or a relay attack, which is a common method to bypass keyless entry systems, an S5 will detect the absence of the driver’s tag and alert the monitoring centre.

However, the S7 tracker doesn’t have this capability so it won’t notice if a thief drives off with the owner’s keys, though it can still track the vehicle’s location.

S5 trackers also offer features like tamper and tow-away alerts, providing an extra layer of proactive security. These benefits come at a higher cost, both for the device and ongoing monitoring subscriptions.

Insurance implications of fitting S5 or S7 trackers

Insurers in the UK often require Thatcham-approved trackers for vehicles prone to theft, such as luxury SUVs, sports cars or models frequently targeted by thieves. The choice between the S5 and S7 depends on the insurer’s requirements and the vehicle’s risk profile:

• S7 trackers: Most insurers accept Category S7 trackers as the minimum standard for theft recovery. They meet basic requirements for many mid-range vehicles and installing one can reduce premiums or ensure coverage eligibility
• S5 trackers: For high-risk or high-value vehicles, such as a Range Rover, Audi RS or Mercedes-Benz AMG, insurers often mandate an insurance-approved S5 tracker. The ADR feature and optional immobilisation make S5 trackers a preferred choice for these cars, as they reduce the likelihood of successful theft. Be aware that some insurers will only provide theft cover for certain models if the S5 is fitted.

It’s always a good idea to check your insurance policy or consult your insurer to confirm whether the S5 or the S7 is required. Installing either can lead to lower premiums, as it demonstrates a commitment to vehicle security, but failing to meet a mandated tracker category could invalidate your theft cover.

Which car tracker do you need?

Choosing between the S5 or the S7 depends on your vehicle, budget and insurance requirements. Here’s some guidance:

• Choose the S5 tracker if:
  • You have a high-value or high-performance vehicle (e.g., Range Rover, Porsche, BMW M-series) that’s a frequent target for thieves
  • Your insurer requires the S5 tracker for theft cover, which is common for premium or high-risk models
  • You want maximum security, including driver verification and features like tamper or tow-away alerts
  • You’re willing to invest in a higher upfront cost and ongoing monitoring fees for peace of mind.
• Choose the S7 tracker if:
  • Your vehicle is mid-range or less frequently targeted by thieves (e.g., a family saloon or hatchback)
  • Your insurer accepts the S7 tracker as sufficient for theft cover, which is often the case for lower-risk cars
  • You’re looking for a cost-effective solution that still provides reliable GPS tracking and recovery
  • Budget is a key consideration, as S7 trackers are typically cheaper to buy and maintain.

Both the S5 and S7 offer a big boost for vehicle security, and Thatcham approval ensures high standards for recovery.

For maximum protection, consider a layered approach: even with the S7 tracker, other measures like steering locks or Faraday pouches for keyless fobs can deter thieves.

Ghost Installations can advise on complementary security solutions tailored to your needs.

Choosing the right tracking system

Whether you opt for an insurance-approved S5 tracker or S7 tracker, a Thatcham-approved tracker is a smart investment for protecting your vehicle and meeting insurance requirements.

S5 trackers offer advanced security with driver recognition and optional immobilisation, making them ideal for high-value cars, while S7 trackers provide reliable, cost-effective recovery for a wide range of vehicles.

By understanding the differences, you can make an informed decision that balances security, cost and insurer demands.

For expert guidance and professional installation of Thatcham-approved trackers, Ghost Installations is here to help you choose and fit the perfect tracking system for your car.