GPS Tracker Hardware
Hardware is where everything begins. Before you worry about apps, dashboards, or subscriptions, the physical tracker has to work — and that's where most cheap devices fail. This section covers the three main hardware types (OBD-II, hardwired, magnetic), their real-world trade-offs, and which specific units we've found worth buying at each price point.
How to Judge a GPS Tracker's Hardware
Ignore the marketing specs and focus on three things. Battery type: replaceable beats sealed, always — sealed batteries are the #1 reason trackers die in year two. Antenna quality: this is where cheap units quietly fail, and you can't tell by looking at them; you have to test signal strength in real conditions. Connector durability: on hardwired units, look at the plastic on the fuse tap; if it feels brittle, walk away. If a seller can't tell you the battery type and antenna spec in one sentence, that's your answer.
Editor's Picks in Hardware
Plug into the port under your dash. No tools, no wiring, works on any vehicle built after 1996. The best place to start if you're tracking fewer than 10 vehicles.
Wired into the fuse box, hidden from view. Takes 30 minutes to install, but once it's in, nobody knows it's there. Worth the effort for high-theft-risk fleets.
Sticks to any metal surface. Moves between vehicles in seconds. Great for shared equipment, trailers, and rented vehicles — but battery-powered, so plan to recharge monthly.
Quick Recommendation
For most small fleets (3–10 vehicles): start with an OBD-II tracker. If it works well for two weeks, buy the rest. Only move to hardwired if you need the unit hidden or if you're tracking vehicles older than 1996 (which don't have OBD-II ports).
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Frequently Asked Questions
OBD-II: 30-second install, no tools, but visible. Hardwired: hidden, permanent, needs 30 min of wiring. Magnetic: portable, battery-powered, sticks anywhere metal but easiest to find and steal. For most small fleets, OBD-II is the right starting point.
Some are. We test every hardwired tracker for at least 90 days. What matters is antenna quality and connector durability — not the brand. We've found $20 units that outlast $60 ones.
No. A good hardwired tracker connects to an always-on circuit (like the fuse box) using a fuse tap. This is a 15–30 minute job with basic tools. If a manufacturer tells you to disconnect the battery, they're either being overly cautious or the unit isn't well designed.
Depends on update frequency. A typical magnetic tracker with 60-second updates lasts 5–14 days on a charge; with 10-minute updates, 3–6 weeks. If a manufacturer claims 6 months, they're probably reporting a mode you'll never use.
If you can change a car fuse, you can install a hardwired tracker. It's a fuse-tap connection, not a splice. We've written a step-by-step guide in our basics section.