We researched and compared the top small boat radars on the market using manufacturer specifications, industry standards, and aggregated owner feedback. Our evaluation focuses on performance, durability, value, ease of use, and safety to help you choose the best radar for your vessel. Whether you need a compact unit for a center console or a powerful array for a cruising sailboat, this guide covers the key considerations.
| Photo | Product | Score | Buy |
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Furuno DRS4W Best Overall 4 kW, 24 nm range, 18-inch radome, wireless connectivity |
9.0 | 🛒 Check Price |
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Simrad GO9 XSR Best Integrated System 9-inch touchscreen, 18-inch radome, 36 nm range, Halo pulse compression |
8.7 | 🛒 Check Price |
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Garmin GMR 18 xHD Best Value 4 kW, 36 nm range, 18-inch dome, xHD digital processing |
8.4 | 🛒 Check Price |
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Raymarine Quantum 2 Q24D Best for Sailboats 24-inch dome, Doppler technology, 48 nm range, CHIRP pulse compression |
8.1 | 🛒 Check Price |
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Lowrance HDS-12 Live Best Display 12-inch touchscreen, includes 3-in-1 transducer, optional radar module |
7.8 | 🛒 Check Price |
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Furuno 1715 Budget Pick 2.2 kW, 24 nm range, 12-inch radome, monochrome display |
7.3 | 🛒 Check Price |
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Navico Broadband 3G Compact Option 3G radar, 24 nm range, 14-inch radome, solid-state |
7.2 | 🛒 Check Price |
1. Furuno DRS4W: Best Overall
After comparing specifications and owner feedback, the Furuno DRS4W stands out for its exceptional small target detection and reliable performance in challenging weather. Its 4 kW output and 24 nm range provide solid coverage for coastal cruising and fishing. The wireless connectivity reduces cable clutter, and the compact 18-inch radome fits easily on small boats. Owners consistently praise its ability to pick up buoys and small vessels even in heavy rain.
However, the DRS4W is not a standalone unit; it requires a compatible Furuno display or chartplotter. This adds to the overall investment and may not suit those on a tight budget. If you already own a Furuno MFD, this radar is an excellent upgrade. But if you need an all-in-one solution, consider a model with built-in display.
- Wireless network compatibility with Furuno TZtouch and NavNet systems
- Dome weighs only 17 lbs, ideal for small boats
- Target separation of 23 meters at close range
Pros: Excellent target detection in rain and clutter; Easy integration with existing Furuno chartplotters
Cons: Requires separate chartplotter or display (not standalone)
2. Simrad GO9 XSR: Best Integrated System
The Simrad GO9 XSR is a versatile all-in-one system that combines a chartplotter, sonar, and radar in a single 9-inch display. We evaluated its Halo pulse compression technology, which delivers excellent short-range target separation and reduced clutter. The 36 nm range is sufficient for coastal navigation, and the radome is compact and lightweight. Owner reviews highlight the ease of use and the clear, bright screen even in direct sunlight.
Its main limitation is that the radar range may not satisfy offshore cruisers who need longer detection. Additionally, the built-in display means you cannot upgrade the radar independently. If you prefer separate components, this integrated approach may feel restrictive. For most small boat owners, however, the GO9 XSR offers a convenient, space-saving solution.
- All-in-one chartplotter, sonar, and radar display
- Halo pulse compression for improved short-range resolution
- Wireless connectivity and Active Imaging sonar
Pros: Intuitive touchscreen interface; Combines multiple functions in one unit
Cons: Radar range limited compared to larger units
3. Garmin GMR 18 xHD: Best Value
The Garmin GMR 18 xHD offers solid radar performance at a reasonable investment. We compared its 4 kW power and 36 nm range, which cover typical small boat needs. The xHD digital processing provides clear target returns, and the dual-range display lets you view close and far simultaneously. Owners appreciate the straightforward installation and compatibility with Garmin’s network.
However, this model lacks wireless networking, so you must run an Ethernet cable to your display. This can complicate installation on some boats. Also, the radome is slightly heavier than some competitors. If you already have a Garmin MFD and don’t mind cables, this is a dependable choice. But if wireless convenience is a priority, look elsewhere.
- Digital signal processing for crisp images
- Marine network compatible with Garmin chartplotters
- Dual-range display capability
Pros: Good balance of performance and cost; Reliable brand with strong support
Cons: No wireless connectivity; requires cable
4. Raymarine Quantum 2 Q24D: Best for Sailboats
Raymarine’s Quantum 2 Q24D uses Doppler technology to display moving targets in red/green, making it easy to identify other vessels. Its CHIRP pulse compression provides excellent short-range resolution, ideal for crowded harbors. We found owner feedback particularly positive among sailors who appreciate the low power draw and the ability to see approaching boats at a glance. The 48 nm range is generous for a small dome.
The main drawback is the price; it is one of the more expensive options in this class. Additionally, the 24-inch dome may be too large for very small boats. If your budget is tight or your boat has limited mounting space, you might prefer a smaller radome. But for sailors who prioritize safety and target discrimination, the Quantum 2 is a top contender.
- Doppler radar shows moving targets in color
- Superior short-range detection with CHIRP
- Low power consumption for sailboats
Pros: Exceptional target identification; Energy efficient
Cons: Higher cost per feature
5. Lowrance HDS-12 Live: Best Display
The Lowrance HDS-12 Live is primarily a fishfinder/chartplotter that can be paired with a separate Broadband radar module. We evaluated its 12-inch SolarMAX display, which is one of the brightest and most readable in direct sunlight. The unit also includes a high-performance 3-in-1 transducer. When combined with a radar module, it offers a capable navigation system. Owners love the intuitive interface and the large screen.
However, the radar capability is an add-on, which increases total cost and complexity. The HDS-12 Live itself is not a radar, so you must purchase a dome separately. Also, the Broadband radar modules have shorter range (up to 24 nm) compared to some competitors. If you need a full-featured display and are willing to invest in a radar module, this is a great choice. But if you want an all-in-one radar solution, consider a dedicated unit.
- Large, bright SolarMAX display
- Active Imaging 3-in-1 sonar
- Compatible with Broadband 3G/4G radar
Pros: Excellent screen visibility; Versatile fishfinder/chartplotter
Cons: Radar module sold separately
6. Furuno 1715: Budget Pick
The Furuno 1715 is a basic standalone radar that provides essential navigation capability at a low cost. We examined its 2.2 kW output and 24 nm range, which is adequate for inshore and coastal use. The 7-inch monochrome display is clear but not as detailed as color units. Owner reviews mention it is easy to install and use, with automatic tuning that reduces clutter. It is a popular choice for small fishing boats and day cruisers.
Its limitations are significant: the monochrome screen makes it hard to differentiate targets, and the range is insufficient for offshore passages. The radome is also small (12 inches), which reduces performance in heavy seas. If you need a radar for occasional use near shore and are on a tight budget, the 1715 works. But for serious navigation, we recommend spending more for a color unit with better performance.
- Standalone radar with built-in 7-inch monochrome display
- Compact and lightweight design
- Automatic tuning and sea clutter control
Pros: Very affordable entry-level radar; Simple, reliable operation
Cons: Monochrome display lacks color information; Limited range and resolution
7. Navico Broadband 3G: Compact Option
The Navico Broadband 3G is a compact, solid-state radar designed for small boats where space and power are limited. With a 14-inch radome and only 12 lbs, it is the smallest unit we evaluated. It offers instant-on operation and very low power consumption, which is ideal for sailboats or kayaks. Owner feedback notes it provides decent short-range performance for navigation in bays and rivers.
However, its 24 nm range is the shortest among our picks, and the solid-state technology may not match the detection of higher-power magnetron radars. It also requires a compatible Lowrance or Simrad display, so it is not standalone. If you need a radar for very close quarters and already own a compatible MFD, this could work. Most small boat owners will get better value from a more capable unit.
- Solid-state design for instant-on and low power
- Very compact and lightweight (12 lbs)
- Works with Lowrance and Simrad displays
Pros: Minimal power draw; Fits in tight spaces
Cons: Shortest range in this guide; Requires compatible MFD
Frequently Asked Questions
What is the minimum range I need for a small boat radar?
For most small boats, a radar with a range of 24 to 36 nautical miles is sufficient for coastal and inland navigation. Short-range performance (under 1 nm) is more important for collision avoidance in harbors. Look for models with pulse compression or digital processing for good close-range target separation.
Can I install a radar on a small boat myself?
Many radomes are designed for DIY installation, but you must ensure proper mounting height and a clear view. Some units require running cables and connecting to a display. If you are comfortable with basic electrical work, you can install it. However, professional installation is recommended for optimal performance and safety.
Do I need a separate display for a radar?
Some radars are standalone with a built-in display, while others require a compatible chartplotter or MFD. If you already have a chartplotter, choose a radar that integrates with it. If not, a standalone unit may be more cost-effective. Check compatibility before purchasing.
What is the difference between a radome and an open array radar?
Radomes are enclosed, compact, and suitable for small boats. Open arrays have larger antennas that spin openly, offering longer range and better performance but require more space and power. For small boats, a radome is usually the best choice due to size and weight constraints.
How important is Doppler radar for a small boat?
Doppler radar shows moving targets in color, making it easier to identify potential collisions. It is very useful in busy waterways but adds cost. For most small boat owners, a standard radar with good target separation is sufficient. Doppler is a premium feature.
Our Verdict
After comparing specifications, industry standards, and owner feedback, our top pick is the Furuno DRS4W for its excellent target detection and wireless integration. The Simrad GO9 XSR is a strong runner-up, offering an all-in-one solution with an intuitive interface. Choose based on your existing equipment and budget.
