What this guide covers The three GPS tracker hardware families (hardwired, OBD plug-and-play, magnetic battery-powered), what each does well and badly, the use case that determines the right pick, realistic FCFA + USD prices, and the three buying mistakes most people make their first time. For individual vehicle owners and small fleet operators worldwide; pricing examples from Senegal.

TL;DR · key takeaways

  • Three hardware families, one decision: hardwired (installed pro, max features), OBD plug-and-play (self-install in 1 minute, no engine cut), magnetic battery-powered (zero install, asset tracking).
  • For a vehicle that earns income (rental, taxi/VTC, delivery, owner-operator) the answer is hardwired with engine cut. The other two don't carry the recovery posture.
  • For a personal car or short-term experiment, OBD plug-and-play is fine. 60-second self-install, no installer needed.
  • For asset tracking (trailer, container, equipment, covert second device), magnetic battery is the right tool. Watch the recharge interval.
  • Real prices in Senegal: hardwired 25,000-60,000 FCFA + 15,000 install, OBD 18,000-48,000, magnetic 24,000-72,000. Subscription ~6,000 FCFA/month per device.

Outline

  1. Hardwired GPS
  2. OBD plug-and-play GPS
  3. Magnetic battery-powered GPS
  4. Quick comparison
  5. Picking by situation
  6. Realistic prices in Senegal
  7. Three common buying mistakes
  8. Buyer's checklist

Hardwired GPS

The device is wired into the vehicle's electrical system, typically hidden behind the dashboard or under a seat. A trained installer connects it to power, ignition, and (optionally) an immobilizer relay.

Strengths

  • Continuous power from the vehicle battery, no charging cycle to manage
  • Accurate ignition state (engine on / off / accessory power)
  • Full feature support: engine cut / immobilizer, geo-zone, CAN bus reads on supported devices, fuel sensor inputs
  • Tamper-resistant: hidden, requires tools to remove
  • Long-term reliability when installed correctly

Limitations

  • Professional install required (~30 minutes per vehicle in a workshop)
  • Slightly higher upfront cost (hardware + install)
  • Not portable: moving the device to another vehicle is a re-install

Ideal use cases

  • Rental fleet operators (engine cut is operational, not optional)
  • Taxi / VTC owner-drivers: the vehicle is the income source
  • Logistics and trucking: where fuel-sensor and CAN bus integration matter
  • Personal vehicles in high-theft markets where deterrence + recovery posture are worth the install cost

For deep dives on installation specifically, see our GPS tracker installation guide (EN) or the Dakar-specific install walkthrough.

OBD plug-and-play GPS

Plugs directly into the vehicle's OBD-II diagnostic port (under the dashboard on most cars built after ~2001). No wiring, no installer.

Strengths

  • Install in 60 seconds, no tools, no shop visit
  • Power drawn from OBD port, no battery to manage
  • Reads CAN bus codes on supported vehicles (real odometer, fault codes, fuel-system data)
  • Portable across vehicles, useful if you change cars often

Limitations

  • Visible: a thief who knows where to look can pull it in 10 seconds
  • No engine cut on the vast majority of OBD plug-and-play models: the OBD port doesn't allow the relay wiring needed for ignition disable
  • Occupies the OBD port (problem if you also use a diagnostic dongle)
  • Power is gone if the OBD port loses power (rare, but it happens with some after-market wiring)

Ideal use cases

  • Personal vehicle, low-to-moderate theft risk
  • Short-term fleet pilots before committing to hardwired
  • Vehicles that change hands often (parents lending the family car, short-term rentals)
  • Self-install scenarios where bringing the vehicle to a workshop is impractical

Magnetic battery-powered GPS

A sealed waterproof case with a strong rare-earth magnet. Sticks to any metal surface: wheel well, sub-frame, cargo, equipment. Internal lithium battery (typically 3,000-10,000 mAh).

Strengths

  • Zero install, zero wiring
  • Extremely discreet: hidden under the chassis or in cargo
  • Portable across vehicles or non-vehicle assets (trailers, containers, equipment)
  • Battery life can be 1-6 months depending on update interval and battery size

Limitations

  • Finite battery: needs periodic recharge (every 1-6 months)
  • No live engine state: the device doesn't know if the vehicle is running
  • No engine cut: no wiring means no immobilizer relay
  • Recharge requires physically retrieving the device

Ideal use cases

  • Asset tracking: trailers, shipping containers, construction equipment, cargo
  • Theft-recovery secondary device: paired with a hardwired primary, the magnetic device stays hidden if a thief finds and removes the primary
  • Short-term covert tracking when wiring isn't an option
  • Movable assets without their own power supply

Quick comparison

Criteria Hardwired OBD plug-and-play Magnetic battery
Install effort Pro install, ~30 min Self, ~1 min None
Continuous power Yes (vehicle battery) Yes (OBD port) No (internal battery)
Engine cut Yes No (rare) No
Discretion High (hidden) Low (visible) High (under chassis)
Portability Low High High
Hardware cost 25,000-60,000 FCFA 18,000-48,000 FCFA 24,000-72,000 FCFA
Install fee 15,000 FCFA 0 0
Recharge interval Never Never 1-6 months

Picking by situation

You're an individual with one personal car and moderate theft risk. OBD plug-and-play. 60-second self-install, no shop visit. If theft becomes a concern in your neighborhood, upgrade to hardwired with engine cut later.

You own a vehicle and rent it out (taxi, VTC, location-vente). Hardwired with engine cut. The vehicle is your income source; off-zone use, theft, and unauthorized passenger trips cost real money. The deterrent value of an engine cut justifies the install cost on the first prevented incident.

You run a vehicle rental fleet (5+ cars). Hardwired across the fleet. OBD plug-and-play is too easy to remove for a customer who doesn't want to be tracked, and you can't recover a stolen rental car without engine cut. See GPS for car rental in Senegal: complete guide.

You run a logistics fleet (trucks, vans, deliveries). Hardwired with optional sensors (fuel level, temperature, weight). For substantive depth on truck-specific deployments, see /gps-for/truck.

You're tracking a trailer, shipping container, or piece of equipment. Magnetic battery. There's nothing to wire into; the asset doesn't have its own power supply.

You want a secret backup tracker on top of a hardwired primary. Magnetic battery as a secondary, hidden in a different location from the primary. If a sophisticated thief finds and removes the hardwired device, the magnetic one keeps emitting.

You're considering it for a teen driver's car. Hardwired or OBD depending on theft risk. The conversation matters more than the device. See Teen driving GPS tracking: a practical guide for parents.

Realistic prices in Senegal

Hardware ranges (one-time, for active live trackers):

  • Hardwired (basic): 25,000-35,000 FCFA
  • Hardwired (pro with immobilizer + sensor inputs): 35,000-60,000 FCFA
  • OBD plug-and-play: 18,000-48,000 FCFA
  • Magnetic battery-powered: 24,000-72,000 FCFA depending on battery size

Professional install (hardwired only): ~15,000 FCFA per vehicle.

Subscription: ~6,000 FCFA/month per device on the standard plan. Volume discount kicks in at 50+ vehicles. For 200+ vehicle fleets, see Traxelio Enterprise for negotiated pricing.

For a full breakdown by profile (individual, SME, fleet), see our Senegal GPS pricing guide (EN) or the FR equivalent. For installation cost specifically, Dakar installation cost guide.

Three common buying mistakes

Mistake 1: optimizing for hardware price. A 18,000 FCFA OBD device on 30 vehicles saves 210,000 FCFA versus a 25,000 FCFA hardwired device, equivalent to 35 monthly subscriptions. If the cheaper hardware leads to a single un-recovered theft or even a few hours of lost coverage, the savings are gone. Optimize on three-year total cost, not on the price tag of the device.

Mistake 2: assuming all trackers have the same anti-theft posture. A magnetic battery tracker hidden under the chassis gives you recovery (you find the vehicle after it's been stolen). A hardwired tracker with engine cut gives you prevention (you stop the vehicle before it disappears). They're different tools. Buy the one that matches the threat.

Mistake 3: ignoring the platform. A tracker is a sensor. The sensor is useless without software that turns sensor data into decisions: alerts, scores, reports, multi-user roles. If the vendor's demo doesn't show you live tracking, geofence configuration, driver scoring, and exportable activity reports, the platform isn't ready for professional use. The hardware is the tail, not the dog.

Buyer's checklist

Confirm these before you commit:

  • Live tracking with sub-30-second refresh? Yes.
  • Configurable alerts (speed, geofence, ignition, low battery, harsh driving)? Yes.
  • Engine cut / immobilizer on hardwired models? Yes.
  • Driver scoring? Yes.
  • Trip history with stop detection? Yes.
  • Multi-user roles with per-role permissions? Yes.
  • Web platform AND mobile apps (iOS + Android)? Yes.
  • Daily activity reports by email? Yes.
  • API for ERP / dispatch integration? Yes.
  • Transparent pricing, no per-feature upsells? Yes.
  • Local installer network (or DIY guide for OBD/magnetic)? Yes.

If two or more answers are "no" or "soon", look elsewhere.

Next steps

The FR equivalent of this guide is available here.