A regular car GPS will happily route a 13-foot-6 rig under an 11-foot bridge, and that is exactly how drivers end up peeling the roof off a trailer. A real truck GPS knows your height, weight, length, and load type, then builds a route that keeps you legal and out of trouble. That single difference is worth more than every other feature combined.
We looked at the units over-the-road drivers actually run every day, judging them on truck-specific routing accuracy, screen size and glance-ability, live traffic, weather, and how well they handle the real world of weigh stations, low clearances, and tight delivery streets. Here are the seven best GPS units for semi trucks right now, ranked from our top overall pick down.
| Photo | Product | Score | Buy |
|---|---|---|---|
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Garmin dezl OTR1010 Best Overall 10-inch HD display, custom truck routing, live traffic and weather via app |
9.5 | 🛒 Check Price |
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Garmin dezl OTR800 Best 8-Inch Pick 8-inch high-res display, magnetic mount, custom truck and trailer profiles |
9.3 | 🛒 Check Price |
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Rand McNally OverDryve 8 Pro Best for Trucking Tools 8-inch Android tablet, truck routing, dash cam, weigh station and fuel data |
9.1 | 🛒 Check Price |
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Garmin dezl OTR700 Best Value 7-inch display, full truck routing, voice-assist, traffic via app |
8.9 | 🛒 Check Price |
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Rand McNally TND 750 Best Trucker Heritage 7-inch display, truck-specific routing, electronic logging compatible |
8.7 | 🛒 Check Price |
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Garmin dezlCam OTR710 Best With Built-In Dash Cam 7-inch display, integrated dash cam, full truck routing, incident detection |
8.5 | 🛒 Check Price |
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TomTom GO Expert Plus Best Map Detail 7-inch HD screen, truck routing, lifetime world maps, live services |
8.3 | 🛒 Check Price |
1. Garmin dezl OTR1010: Best Overall
The Garmin dezl OTR1010 is the unit we would put in our own truck. The 10-inch display is the headline, but the real story is the routing engine underneath it. You enter a full vehicle profile, height, weight, length, axle count, and hazmat class, and it builds routes that respect every one of those numbers. In our testing the low-clearance and weight-limit warnings fired early and clearly, giving plenty of time to react rather than panicking at the underpass.
It also goes beyond raw navigation. The trip and break planning tools help you stay ahead of your hours, and the live traffic and weather overlays through the paired app are genuinely useful for routing around closures. The honest weakness is dependence on that phone connection for the live data, so if your cab has poor signal you lose some of the smarter alerts. Even so, as a standalone navigator the truck routing alone earns it the top spot.
- Large 10-inch edge-to-edge glass display that stays readable in direct sun
- Custom truck routing using your exact height, weight, length, and hazmat profile
- Built-in dispatch, load, and break planning tools through the Garmin Drive app
Pros: Best-in-class truck routing accuracy and low-bridge warnings; Big, bright screen is easy to read at a glance; Integrates ELD-style break and drive-time planning
Cons: The large screen takes up real estate on a crowded dash; Some advanced features lean on a paired phone and data connection
2. Garmin dezl OTR800: Best 8-Inch Pick
The Garmin dezl OTR800 takes everything good about the 1010 and shrinks it for drivers who do not want an 8-inch or larger slab dominating the windshield. The truck routing, low-bridge alerts, and weigh-station notices are all here, and they work exactly as well as on the bigger unit. We especially liked the powered magnetic mount, which lets you pull the GPS off the dash in one motion when you park overnight.
The ability to store several truck and trailer profiles makes this a strong choice for drivers who pull different equipment week to week, since you just select the right profile instead of re-entering dimensions. The trade-off versus the 1010 is simply screen area, the 8-inch panel shows a touch less map context, and that matters most in dense city navigation. For the majority of drivers, though, this is the sweet spot of size and capability.
- Compact 8-inch screen that fits cabs where a 10-inch unit is too much
- Powered magnetic mount makes it quick to grab and stow at truck stops
- Multiple truck and trailer profiles for drivers who swap loads
Pros: Same proven Garmin truck routing in a smaller footprint; Magnetic mount is fast and secure; Saves several distinct vehicle profiles
Cons: Smaller screen shows slightly less of the map at a glance; No 4K or extra-high resolution, just clean and clear
3. Rand McNally OverDryve 8 Pro: Best for Trucking Tools
Rand McNally has been making trucker tools for generations, and the OverDryve 8 Pro is their attempt to fold the whole cab into one device. It runs Android, so the truck navigation lives alongside whatever apps you want, music, messaging, or a load board, and that flexibility is genuinely handy on long hauls. The built-in dash cam is a nice bonus that saves you buying and mounting a separate camera.
The truck routing respects your dimensions and the trucking POI database is excellent, with reliable weigh-station and fuel information. The catch is performance. Layering Android over a navigator can make the interface feel less snappy than Garmin’s purpose-built software, and there is a steeper learning curve. If you want one device that does many jobs and you do not mind a little fiddling, this is the most capable all-rounder on the list.
- Runs full Android so you can add apps alongside truck navigation
- Built-in dash cam captures the road while you drive
- Trucking-specific data for weigh stations, fuel, and points of interest
Pros: Doubles as a tablet for apps, music, and communication; Integrated dash cam is a real convenience; Deep trucking POI and weigh-station database
Cons: Android layer can feel slower than a dedicated navigator; More to learn and set up than a single-purpose GPS
4. Garmin dezl OTR700: Best Value
If you want real Garmin truck routing without paying for the largest screen, the dezl OTR700 is the smart buy. The 7-inch display is the most modest on this list, but the navigation brain is the same one driving the pricier units. You still get custom vehicle profiles, low-clearance and weight warnings, and the upcoming road and exit guidance that makes Garmin easy to trust on unfamiliar routes.
Voice assistance lets you search and route without taking your hands off the wheel, which is exactly what you want at highway speed. The honest limitation is the screen. At 7 inches, the map and instructions are simply smaller, and older eyes or quick glances suffer a bit compared with an 8-inch or larger panel. For drivers who value a clean, reliable navigator and do not need all the trip-management bells, this delivers the core experience at excellent value.
- 7-inch screen that fits almost any dash without crowding
- Complete Garmin truck routing with custom vehicle profiles
- Voice-assisted navigation keeps your hands on the wheel
Pros: Strong truck routing at a friendly, sensible value; Compact size mounts easily in any cab; Hands-free voice control works well
Cons: Smaller screen is harder to read at a quick glance; Fewer extras than the 800 and 1010
5. Rand McNally TND 750: Best Trucker Heritage
The Rand McNally TND 750 is the no-nonsense trucker’s navigator. There is no Android layer and no dash cam, just a dedicated GPS built around truck-specific routing, road restrictions, and the kind of warnings that keep a heavy rig out of trouble. For drivers who want a tool that does exactly one job and does it without fuss, that focus is a real strength.
It pairs neatly with Rand McNally’s electronic logging hardware, making it a tidy fit for owner-operators already in that ecosystem. The drawbacks are showing the brand’s age in places. Map and firmware updates can be a slow, occasionally frustrating process, and the interface looks plainer than the slick Garmin software. Look past the cosmetics, though, and the underlying routing is dependable and trucking-smart.
- Purpose-built trucking navigator with no app clutter
- Detailed truck routing with road restrictions and warnings
- Compatible with Rand McNally electronic logging hardware
Pros: Made by a brand that knows trucking inside out; Clean, focused interface with no distractions; Pairs with ELD hardware for a connected workflow
Cons: Map and software updates can be slow to install; Interface looks dated next to newer rivals
6. Garmin dezlCam OTR710: Best With Built-In Dash Cam
The Garmin dezlCam OTR710 answers a question a lot of drivers ask, why mount two devices when one will do. It is essentially the dezl truck navigator with a quality dash cam baked in, recording the road ahead the whole time you drive. When it detects a hard impact or sudden event, it locks that footage automatically, which is exactly the protection you want if a four-wheeler cuts you off and blames the truck.
You get the same trustworthy Garmin truck routing as the rest of the dezl family, so navigation is never an afterthought. The compromise is that the camera, while solid, is not as sharp as a dedicated high-end dash cam, and you do have to keep an eye on the memory card. For a driver who wants navigation and an honest video witness in a single tidy package, the value here is hard to beat.
- Built-in dash cam records continuously while you drive
- Saves footage automatically when an incident is detected
- Complete Garmin truck routing with vehicle profiles
Pros: Combines a proven navigator and a dash cam in one unit; Automatic incident capture protects you in disputes; One device means one mount and one power cable
Cons: Dash cam resolution is good rather than class-leading; Recording uses storage you must manage on a memory card
7. TomTom GO Expert Plus: Best Map Detail
TomTom is a heavyweight in consumer navigation, and the GO Expert Plus brings that polish to trucking. The HD screen renders maps beautifully, with clear lane guidance and some of the best-looking junction views in the category, which genuinely reduces missed exits in complex interchanges. Truck routing accounts for your dimensions and weight, and the live traffic rerouting is quick and confident.
Where it trails the dedicated trucking brands is the depth of North American trucker data. The weigh-station and truck-stop database is not as rich as what Rand McNally and Garmin offer, so US-only over-the-road drivers may miss a few amenities. On the other hand, the worldwide maps make this a standout for anyone running cross-border routes. If map clarity and broad coverage rank high on your list, the Expert Plus earns its place.
- Bright HD screen with crisp, detailed map rendering
- Truck routing tuned to your vehicle size and weight
- Includes worldwide maps and live traffic services
Pros: Excellent, detailed map graphics and lane guidance; Worldwide map coverage out of the box; Strong live traffic rerouting
Cons: Trucking POI database is thinner than the US-focused brands; Fewer North American weigh-station details than Rand McNally
Frequently Asked Questions
Do I really need a truck-specific GPS instead of a phone app?
Yes, if you drive a semi. Standard phone apps and car GPS units route based on cars, so they do not account for your height, weight, length, or hazmat status. That is how trucks end up under low bridges or on roads with weight limits and turn restrictions. A truck GPS uses your full vehicle profile to keep you on legal, clearance-safe roads, and it warns you about low overpasses, sharp turns, and weigh stations ahead. For an over-the-road driver, that protection is the entire reason these units exist.
What screen size is best for a semi truck GPS?
It depends on your dash space and your eyes. Many drivers find 8 inches to be the sweet spot, large enough to read at a glance without dominating the windshield. A 10-inch unit like the Garmin dezl OTR1010 is fantastic for map context and at-a-glance reading, but it needs a cab with room to mount it safely out of your sightline. A 7-inch model fits almost anywhere and works well if you prefer a compact setup. Just make sure whatever you choose mounts where it is easy to see but not blocking the road.
How do low-bridge and clearance warnings actually work?
When you set up the GPS, you enter your vehicle height. The unit then cross-references that against its map database, which stores clearance data for bridges, tunnels, and overpasses along your route. If your height is close to or exceeds a clearance ahead, it routes you around it or warns you well in advance. Accuracy depends on the map data being current, which is why keeping your maps updated matters. Garmin and Rand McNally both maintain strong clearance databases, and that is a big reason they lead this category.
Will a truck GPS keep me away from weigh stations and restricted roads?
It will help you plan around them, not avoid the law. Quality truck GPS units flag upcoming weigh stations so you are never surprised, and they route you off roads that prohibit trucks or restrict weight, length, or hazmat loads. Rand McNally in particular has a deep weigh-station and trucking POI database. Keep in mind the GPS is a planning aid, not a substitute for following posted signs and regulations, but it makes staying compliant far easier on unfamiliar routes.
How often do I need to update the maps?
Plan on updating at least a few times a year, and ideally whenever an update is available. Roads change, clearances get re-rated, and new restrictions appear, so stale maps can route you incorrectly. Most modern truck GPS units offer free lifetime map updates, but you still have to install them, usually over Wi-Fi or by connecting to a computer. Set a reminder, because an out-of-date clearance database is exactly the kind of gap that leads to a costly mistake. Fresh maps are the cheapest insurance you can give yourself.
Our Verdict
For most over-the-road drivers, the Garmin dezl OTR1010 is the best GPS for semi trucks, combining the most trustworthy truck routing, a big bright 10-inch screen, and genuinely useful trip and break planning into one polished package. If you want that same routing in a smaller, dash-friendly form, the Garmin dezl OTR800 is our runner up and the better fit for tighter cabs. Whichever you choose, set up your full vehicle profile and keep your maps current, because the right truck GPS pays for itself the first time it steers you away from a bridge you would never have cleared.
