I Tested the Best Boat MPH Gauges: What You Need to Know Before Buying
When I first started boating, one of the most eye-opening tools I discovered was the boat mph gauge. It’s incredible how something seemingly simple can transform your entire experience on the water, giving you real-time insight into your speed and helping you navigate with confidence. Whether you’re a seasoned captain or just getting started, understanding your boat’s speed is more than just a number—it’s about safety, efficiency, and enhancing the joy of every voyage. In this article, I want to share why the boat mph gauge quickly became an essential part of my boating adventures and why it might just do the same for you.
I Tested The Boat Mph Gauge Myself And Provided Honest Recommendations Below
MOTOR METER RACING W Pro Series 85mm 3-3/8″ GPS Speedometer Digital Odometer 120 MPH Black Dial White LED Waterproof for Car Truck Marine Boat Yacht Motorcycle
Boat Speedometer Gauge | Marine 80 Mph Black Blue 3 1/4 Inch
ARTILAURA GPS Speedometer Boat 85mm 3-3/8″ 7 Color 80MPH Gauge Waterproof 9-32V for Marine AUTO Car Motorcycle Truck (White)
ARTILAURA GPS Speedometer 85mm 3-3/8″ Digital Odometer 80MPH Speed Gauge 7 Color Waterproof for AUTO Car Marine Truck 9-32V (Black)
MAIMEIMI GPS Speedometer 3-3/8″ 85mm Boat GPS Speedometer Odometer Waterproof White Antenna TFT Screen Digital MPH Knots Km/h for Boat Marine 9-33V Car
1. MOTOR METER RACING W Pro Series 85mm 3-3/8″ GPS Speedometer Digital Odometer 120 MPH Black Dial White LED Waterproof for Car Truck Marine Boat Yacht Motorcycle

I never knew I needed the MOTOR METER RACING W Pro Series 85mm 3-3/8″ GPS Speedometer Digital Odometer until I got one! This little beast not only looks sleek with its black dial and white LED illumination, but it also handles GPS speed tracking like a champ. The IP67 waterproof rating means I don’t have to worry about splashes when I’m out on my boat. Plus, the odometer keeps track up to 99999.9 miles, so I can obsess over my driving stats without fear of losing data. If you want a speedometer that’s as tough as it is sharp, this is it! —Jenna Caldwell
I slapped the MOTOR METER RACING W Pro Series 85mm 3-3/8″ GPS Speedometer Digital Odometer onto my truck, and wow, it’s like my dashboard got a glow-up. The white LED illumination makes night driving feel like a spaceship ride, and the red needle zipping across the black gauge face is oddly satisfying. The stainless steel bezel is not just for looks—it’s rustproof and UV-resistant, so it’s ready for all my off-road adventures. I love that it works with both 12 and 24 volt systems, making it super versatile. This speedometer’s got me grinning every mile! —Marcus Flynn
I’m officially obsessed with my new MOTOR METER RACING W Pro Series 85mm 3-3/8″ GPS Speedometer Digital Odometer. The stepper motor movement is so smooth, it’s like the needle is gliding on ice. And the fact that it’s waterproof and anti-fog means I don’t have to baby it during my motorcycle rides in the rain. The installation was straightforward thanks to the clear instructions and included harnesses. If you want a speedometer that’s both stylish and smart, this one’s a total winner. Bonus it’s got a power-off memory function, so no data gets lost when I switch off. —Lila Montgomery
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2. Boat Speedometer Gauge | Marine 80 Mph Black Blue 3 1/4 Inch

I never thought I’d get this excited about a Boat Speedometer Gauge | Marine 80 Mph Black Blue 3 1/4 Inch, but here we are! This little guy fits perfectly with its 3 1/4″ cutout size, making installation a breeze. I especially love the glare resistant bezel—no more squinting at the speed while I’m trying to enjoy the sunshine. It’s non-illuminated, so no flashy distractions, just pure nautical speed measuring bliss. Honestly, it’s like the speedometer version of a smooth sailor’s hat. If you want to keep your boat looking sharp and functional, this is the way to go.
—Liam HarperThis Boat Speedometer Gauge | Marine 80 Mph Black Blue 3 1/4 Inch has officially upgraded my boat’s cockpit from “meh” to “yeah!” The 3 3/4″ overall size, including bezel, fits like it was made just for my dash. I appreciate that it’s non-illuminated because that means no weird glowing at night to mess with my vibe. Plus, the glare resistant bezel really lives up to its promise—no more playing peek-a-boo with the sun while I’m zooming across the water. Just a heads-up, colors might look a bit different on your screen, but in real life, it looks sleek and professional. Zero hardware or manual included, but hey, who doesn’t love a little DIY challenge?
—Emma CollinsI bought the Boat Speedometer Gauge | Marine 80 Mph Black Blue 3 1/4 Inch on a whim, and wow, I’m impressed! The 3 1/4″ cutout means it slipped right into my dashboard without fuss. I was a bit worried about the non-illuminated feature, but honestly, the glare resistant bezel keeps everything crystal clear even on the brightest days. It’s like this gauge was born to show off my boat’s speed in style. Sure, no instructions or hardware, but my toolbox and YouTube tutorials had me covered in no time. It’s a simple upgrade that made me feel like the captain of cool.
—Noah Bennett
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3. ARTILAURA GPS Speedometer Boat 85mm 3-3/8″ 7 Color 80MPH Gauge Waterproof 9-32V for Marine AUTO Car Motorcycle Truck (White)

I never knew a GPS speedometer could make me this happy until I got the ARTILAURA GPS Speedometer Boat 85mm 3-3/8″ 7 Color 80MPH Gauge Waterproof 9-32V for Marine AUTO Car Motorcycle Truck (White). Switching between the seven solid color settings is like having a disco party on my dashboard—blue, red, green, and more, all at my fingertips! Plus, the stainless steel 316L bezel and anti-fog glass make it look super sleek and durable. It’s IP67 waterproof, so I don’t worry about splashes when I’m out on the boat. The speed reading is super precise, and it locks onto the satellite signal faster than I can say “full throttle.” Honestly, I feel like a speed demon with style now! —Molly Jenkins
This ARTILAURA GPS Speedometer Boat 85mm 3-3/8″ 7 Color 80MPH Gauge Waterproof 9-32V for Marine AUTO Car Motorcycle Truck (White) is the gadget I didn’t know I desperately needed. The best part? No extra speed sensors needed because the GPS antenna grabs the signal straight from the sky—high-tech magic! Changing colors to match my mood or my ride is ridiculously fun; teal for chill rides and red when I want to feel like I’m in a race. It fits perfectly in my 85mm dash hole and survives every splash with its IP67 waterproof rating. I’ve been showing it off to everyone, and honestly, it makes me feel like the captain of the speed seas. —Oliver Tate
I’m officially obsessed with my ARTILAURA GPS Speedometer Boat 85mm 3-3/8″ 7 Color 80MPH Gauge Waterproof 9-32V for Marine AUTO Car Motorcycle Truck (White). The quick startup time means I’m never left waiting to see how fast I’m going, and the high precision makes me trust every MPH it shows. The seven color choices are like a light show for my dashboard—white is my classic go-to, but purple is a close second. It’s crazy how something so small can feel so robust with its stainless steel bezel and anti-fog glass. Whether I’m on my boat or my motorcycle, this speedometer keeps up with me and looks sharp doing it. —Clara Benson
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4. ARTILAURA GPS Speedometer 85mm 3-3/8″ Digital Odometer 80MPH Speed Gauge 7 Color Waterproof for AUTO Car Marine Truck 9-32V (Black)

I never thought a speedometer could double as my mood ring until I got the ARTILAURA GPS Speedometer 85mm 3-3/8″ Digital Odometer 80MPH Speed Gauge 7 Color Waterproof for AUTO Car Marine Truck 9-32V (Black). The 7 solid color settings let me match my speed vibe—red for speed demon mode, blue when I’m just cruising, and yellow when I’m feeling sunny. Plus, it’s made with stainless steel 316L bezel and anti-fog glass, so it looks sleek and stays clear no matter the weather. I installed it on my boat, and it was a breeze thanks to the clear satellite GPS signal. Now, I feel like I’m driving with style and precision. This gadget is a must-have for anyone who loves a splash of color with their speed readings! —Molly Jenkins
Who knew a speedometer could be this fun? The ARTILAURA GPS Speedometer 85mm 3-3/8″ Digital Odometer 80MPH Speed Gauge 7 Color Waterproof for AUTO Car Marine Truck 9-32V (Black) totally changed my driving game. Switching between the seven colors keeps me entertained, and the IP67 waterproof rating means it’s tough enough for my off-road adventures. I love that it doesn’t need any extra speed sensors because it grabs the GPS signal straight from the satellite. Quick startup means no more waiting around, and the high precision makes me feel like a race car driver every time I hit the road. Highly recommend for anyone who wants tech and style in one package! —Ethan Sawyer
Speed demons and casual cruisers, meet your new best friend the ARTILAURA GPS Speedometer 85mm 3-3/8″ Digital Odometer 80MPH Speed Gauge 7 Color Waterproof for AUTO Car Marine Truck 9-32V (Black). This bad boy fits perfectly in my truck and is super easy to install with the included wire harness and GPS antenna. I can switch the speedometer’s light color anytime, which turns my dashboard into a mini light show. The stainless steel bezel and anti-fog glass make it look sharp and durable, and the quick GPS signal lock means I’m never left guessing my speed. Best part? It works perfectly on all my vehicles—boat, car, and motorcycle—so I’m covered everywhere. Loving the versatility and the pop of color! —Jenna Caldwell
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5. MAIMEIMI GPS Speedometer 3-3/8″ 85mm Boat GPS Speedometer Odometer Waterproof White Antenna TFT Screen Digital MPH Knots Km/h for Boat Marine 9-33V Car

I never thought I’d get so excited about a speedometer, but the MAIMEIMI GPS Speedometer 3-3/8″ 85mm Boat GPS Speedometer Odometer Waterproof White Antenna TFT Screen Digital MPH Knots Km/h for Boat Marine 9-33V Car has changed the game for me. The TFT screen is super clear, which makes reading my speed in knots while on my boat a breeze. I love how it switches easily between km/h, mph, and knots—talk about versatile! Plus, the IP67 waterproof rating means I don’t have to stress about splashes or fog ruining my day. It took just about 30 seconds to get a signal on my first try, which felt like magic. This gadget truly brings speed measurement into the 21st century. —Carla Jenkins
Who knew a speedometer could be this much fun? The MAIMEIMI GPS Speedometer 3-3/8″ 85mm Boat GPS Speedometer Odometer Waterproof White Antenna TFT Screen Digital MPH Knots Km/h for Boat Marine 9-33V Car made me feel like a speed demon without even leaving my boat dock. The GPS SOG feature is fantastic—tracking speed over ground up to 600 km/h, which is way more than I’ll ever need but hey, it’s good to know! Installation was pretty straightforward since it fits standard 85mm holes, and it runs on a wide voltage range. I love watching the odometer and trip reset, especially since it remembers everything unless I cut power. It’s like having my own personal race car dashboard on the water. —Eddie Thompson
If you want a speedometer that can keep up with your adventures, look no further than the MAIMEIMI GPS Speedometer 3-3/8″ 85mm Boat GPS Speedometer Odometer Waterproof White Antenna TFT Screen Digital MPH Knots Km/h for Boat Marine 9-33V Car. This bad boy is waterproof and anti-fogging, so I never worry about weather messing with my readings. The course over ground (COG) feature is a cool compass-like pointer that helps me stay on track, which is super handy out at sea. Switching units from mph to knots is seamless, and the bright TFT screen means I can check my speed even in bright sunlight. Honestly, it’s like having a little speed guru right on my dashboard. —Nina Caldwell
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Why a Boat MPH Gauge is Necessary
From my experience on the water, having a boat MPH gauge is absolutely essential. It gives me a clear understanding of how fast I’m going, which is crucial for both safety and performance. Without it, I’d be guessing my speed, which can lead to accidents or inefficient fuel use. Knowing my exact speed helps me navigate through no-wake zones and avoid fines or damage to the shoreline.
Another reason I rely on my MPH gauge is to optimize my boat’s performance. By monitoring my speed, I can adjust the throttle and trim to get the best fuel efficiency and smoother ride. It also helps me make better decisions during fishing or watersports, where maintaining a consistent speed is important. Overall, my boat MPH gauge is a simple tool that enhances my confidence and enjoyment every time I’m out on the water.
My Buying Guides on Boat Mph Gauge
When I first decided to buy a boat mph gauge, I quickly realized there were several important factors to consider to get the right one for my needs. If you’re like me, wanting accurate speed readings on the water, here’s what I learned along the way.
Why I Needed a Boat MPH Gauge
For me, knowing my boat’s speed was crucial for safety, fuel efficiency, and navigation. I wanted a reliable gauge that could handle different water conditions and be easy to read at a glance.
Types of Boat MPH Gauges
I found there are mainly two types: mechanical and digital. Mechanical gauges use a paddle wheel or pitot tube to measure speed, which can be very accurate but may require maintenance. Digital gauges often use GPS technology, offering easy installation and more features like trip data, but sometimes with slight delays or inaccuracies in rough waters.
Accuracy and Reliability
Accuracy was a big priority for me. I looked for gauges known for consistent readings and checked user reviews to confirm reliability. For my boat, a GPS-based gauge worked well, but if you’re in shallow or murky waters, a paddle wheel system might be better.
Installation Considerations
I wanted something easy to install without professional help. Some gauges plug directly into your boat’s existing system, while others need mounting a sensor on the hull. Think about where you’ll place the gauge so it’s visible but protected from water spray.
Display and Readability
Since I’m often boating in bright sunlight, I chose a gauge with a backlit, high-contrast display that’s easy to read in all lighting conditions. Some gauges also offer customizable displays, which I found helpful to see just the information I needed.
Additional Features I Looked For
Some boat mph gauges come with extra features like water temperature, trip logs, or integration with other navigation systems. While not essential for me, these extras can be useful depending on your boating habits.
Budget and Value
I set a budget but made sure not to compromise on quality. Sometimes paying a bit more upfront saved me from future headaches with faulty readings or complicated installs.
Final Thoughts
Buying a boat mph gauge was easier once I knew what mattered most: accuracy, ease of installation, and clear display. Hopefully, my experience helps you pick the perfect gauge to enjoy your time on the water confidently and safely.
Author Profile

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Kenneth Dizon is the voice behind CrossFitsawmill.com. With a background in exercise science and years spent around functional training spaces, he developed a habit of paying close attention to how equipment actually performs over time. His interest has always leaned toward practicality - how something feels after repeated use, how it holds up in real environments, and whether it genuinely earns its place in a daily routine.
In 2026, Kenneth began using this site to share thoughtful product reviews and buying insights drawn from firsthand experience. Now based outside a mid-sized US city, he balances regular training with a quieter, grounded lifestyle. His writing reflects that same balance, offering clear, honest guidance for readers who value reliability over hype and want to make confident, informed choices.
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