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4.1 out of 11 reviews READ REVIEWS

Garmin DriveAssist 51LMTHD with Built-In Dash Cam and Free Map Updates

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Overview & Details

Garmin DriveAssist 51LMTHD with Built-In Dash Cam and Free Map Updates
Welcome to advanced GPS navigation. This Garmin GPS helps you keep your eyes on the road and your hands on the wheel for distraction-free driving, but that's just the beginning. A built-in dash cam provides a record of your road trip and any incidents along the way. It also provides camera assisted alerts to keep you focused on your driving. It works seamlessly with Garmin backup cameras and smartwatches too. When it comes to smart GPS, Garmin is at the head of the class.

What You Get

  • Garmin DriveAssist 51LMTHD 5" GPS
  • Vehicle power cable with built-in traffic antenna
  • GPS mounting bracket
  • Windshield suction-cup mount
  • USB-to-mini-USB cable
  • Quick-start guide
  • Manufacturer's 1-year limited warranty
Good to Know
  • To access live information, you must download the free Smartphone Link app.
  • This GPS receiver is not intended to be used indoors such as in a garage or under an overhanging structure. If the unit is not receiving a strong enough satellite signal, move to a location with a clear view of the sky.
  • Drivers in California and Minnesota are prohibited from using suction mounts on their windshields while operating a motor vehicle.
For warranty information, please call Customer Service at 800.933.2887 (8 am-1 am ET).
Shop all Garmin

The Key Specs

Display: 5" widescreen color TFT display (480 x 272 resolution)
Points of Interest: Millions of points of interest including Foursquare and TripAdvisor
Wi-Fi: Yes

Additional Specs

Route Options: Fastest Time; Shortest Distance; Avoid Tolls; Avoid Delays
Auto Re-Route: Yes
Voice-Activated Navigation: Yes
Voice Prompts: Yes
Lane Assist: Yes, with junction views
FM Transmitter: No
Memory Card Slot: Supports microSD memory cards (sold separately)
Ports: Mini-USB

The Basics

Model #: DriveAssist 51LMTHD
Measurements: Approx. 5.5"W x 3.3"H x 1.1" Deep Approx. 7.2 oz.
Country of Origin: Taiwan


Advanced navigation with built-in dash cam
  • Provides advanced driver alerts such as Forward Collision Warnings
  • Built-in dash cam with optional in-vehicle audio continuously records your drive and automatically saves files on impact
  • GPS records where and when events occurred
  • Easily play back video footage right on the device
  • Or use Garmin's free VIRB Mobile app to watch footage later on your compatible smartphone or tablet
Real-time live services for your drive
  • Outsmart traffic jams with time-saving alternate routes or by avoiding them altogether
  • PhotoLive displays live traffic cameras with subscription
  • Live Parking sends real-time parking trends to your device, when available, through the Smartphone Link app
  • Spend less time circling the block to look for parking
  • Also provides basic weather information
Camera-assisted drive alerts
  • When stopped in traffic, the “Go” Alert notifies you when traffic in front of you has started to move
  • The Forward Collision Warning alerts you if driving too closely to the vehicle ahead
  • If you drift off the road or into oncoming traffic, receive Lane Departure Warning alerts
  • Easily navigate hard-to-read house numbers thanks to the Garmin Real Vision
  • When you approach address destinations, your navigation display will switch to a camera view, showing a bright arrow that points to where you need to go
Smart connectivity and Bluetooth call handling
  • Sync your Bluetooth-enabled smartphone to get great features that keep you connected without taking your hands off the wheel
  • Place hands-free phone calls and receive customizable smart notifications on your navigator’s display
  • See incoming calls, text messages and calendar reminders without even having to reach for your phone
  • Requires a Bluetooth-enabled smartphone, sold separately
  • Must download free Smartphone Link app
Voice-activated navigation and friendly guidance from Garmin Real Directions
  • Includes spoken turn-by-turn directions 
  • Easy-to-understand driving directions use recognizable landmarks, buildings and traffic lights in addition to spoken street names, guiding you as if your best friend is sitting in the passenger seat
  • No more squinting to read distant street signs
  • Just listen for Garmin Real Directions to tell you, “Turn left after the QT,” or “Turn right after the red building”
5" capacitive touchscreen display
  • Easy to read and navigate menus and maps at a glance

Driver awareness alerts
  • Advises when the posted speed limit changes so drivers can adjust their speed accordingly 
  • Alerts you when you go the wrong way on a one-way street
  • Plays a tone and displays the distance to and speed limit of (if available) an upcoming school zone
  • Plays a tone and displays the distance to slow traffic ahead, as well as upcoming railroad or animal crossings and sharp curves
  • Suggests break times and potential rest areas to avoid driver fatigue

Preloaded with detailed maps with lifetime updates
  • Includes maps of the North America
  • Enjoy lifetime map updates, so you always have the latest, most detailed map info
  • High-quality HERE map data helps reduce driving frustrations by helping you avoid delays

Lifetime traffic alerts
  • Help you stay on top of changing traffic conditions for regular commutes and road trips
  • Tell you how many minutes of delay to expect and if there are any possible detours
  • Lets you know whether or not you're on the fastest route

Active Lane Guidance with photoReal Junction View
  • Guides you into the proper lane as you approach junctions and intersections
  • See what the upcoming junction looks like
  • Never miss a turn again
Built-in Wi-Fi
  • For convenient map and software updates
Automatic incident notifications
  • Automatically notifies your loved ones if an incident occurs
  • Just designate your chosen contact phone and they will automatically receive a text message unless you cancel the message prompt before it sends. The text notification includes a map link to where the incident occurred.
Recap the ride with Travelapse
  • Use the built-in dash cam to create a cool video of your next road trip using the Travelapse feature
  • Capture your long, scenic driving footage and use the free VIRB Mobile app on your compatible smartphone to create a short video recap
  • Easily share your video on social media to relive your memories again and again

Millions of points of interest including Foursquare and TripAdvisor
  • Easily locate restaurants, shops, malls, gas stations and other places
Garmin smartwatch compatible
  • Pair with your compatible Garmin smartwatch to receive navigation information right on your wrist, even after you've parked your car and are walking toward your destination
  • Get helpful driver alerts on your smartwatch
  • Your smartwatch can provided compass guidance from your parked vehicle to your destination and back again
  • Perfect for large, crowded parking areas
  • Garmin smartwatch sold separately
Works with optional Garmin backup camera
  • Pairs with the Garmin BC 30 wireless backup camera, sold separately
  • Once connected, you can easily see vehicles, pedestrians and other obstacles right on your Garmin DriveAssist display as you reverse


Garmin DriveAssist 51LMTHD with Built-In Dash Cam and Free Map Updates
11 reviews 4.1 out of 5

Review Breakdown

5 Star
72.73% 8
4 Star
0% 0
3 Star
0% 0
2 Star
18.18% 2
1 Star
9.09% 1
Would recommend to a friend

    Lots of safety features on this model and a built in dash camera in case of a problem. We feel much safer on the road.We have used Garmin for years. We love it!

    Was this review helpful? 1 out of 2 found this review helpful
  • Excellent

    My husband is very happy!!

    horse-lover, OH
    Was this review helpful? 1 out of 2 found this review helpful
  • Love Garmin

    I think this gadget is awesome and I appreciate the fact that it is multifunctional. I own three, and one Magellan. I rarely use the Magellan, so sorry!

    tlongmoody, VA
    Was this review helpful? 3 out of 4 found this review helpful
  • My newest Garmin

    This is my 5th Garmin, it's better than all I had before.

    TwinklingStars4, SC
    Was this review helpful? 8 out of 10 found this review helpful
  • My little worked

    It's a Xmas gift

    andy87, CT
    Was this review helpful? 1 out of 3 found this review helpful