Garmin GMR Fantom™ 24x, Dome Radar, White
Quick take
The Garmin GMR Fantom™ 24x is a 50-watt 24-inch dome radar for boat owners who already use a compatible marine chartplotter and want stronger long-range detection plus easier moving-target interpretation. It offers MotionScope moving-target color highlighting, true echo trails, and dual range split-screen views. The main buying caveat is compatibility, because many of the “smart” radar behaviors are designed to show up on your connected chartplotter.
Pros and cons
Pros
- 50-watt solid-state dome radar for long-range and improved target detection on a compatible chartplotter.
- MotionScope technology uses Doppler-style moving-target detection and highlights targets as they move.
- True echo trails help you track moving targets and potential collision threats.
- Dual range and dual range support for split-screen close and long-range views.
Cons
- Chartplotter compatibility matters, since key features are meant to display on your connected unit.
- Higher-end radar is a commitment if you only need occasional short-range awareness.
What buyers think
Buyer-review evidence for this model is limited. Available feedback is very positive, with a small number of reviewers describing the unit as easy to use and performing well. Because the review sample is small, it is not possible to draw a reliable pattern around long-term reliability, setup difficulty, or durability from reviews alone.
Key features that affect real-world use
Long-range detection with solid-state power
The radar is rated at 50 watts and is designed to improve target detection range on compatible chartplotters. In day-to-day boating, that typically translates to more confidence when scanning open water, channels, or areas with more distance between contacts.
MotionScope moving-target highlighting
MotionScope technology uses the Doppler effect to detect moving targets and highlight them in different colors on your compatible chartplotter. If your goal is to quickly separate “things that are moving” from static clutter, this feature is central to how the system is intended to be interpreted.
True echo trails for situational awareness
True echo trails provide a historical trail on the chartplotter, helping you identify movement patterns over time. This can be especially helpful when evaluating contact behavior rather than relying only on a single scan.
Dual range split-screen views
Dual range supports split-screen images with separate range settings and controls for both close and long range. This is a practical workflow benefit when you want a broader overview and a more detailed view at the same time.
High refresh rotation speed
With up to 60 RPM rotation speed, the radar is positioned to detect movement at any speed with a faster refresh cycle. The practical takeaway is reduced “blind time” between updates when contacts are changing quickly.
Power and transmit control options
The power save feature lets you draw more or less power based on the performance you need. Timed transmit mode lets you specify active and inactive times down to seconds instead of minutes, which is designed to reduce power consumption. If your priority is extending time on the water, these controls are directly relevant to how you run the system.
Resolution and separation control for different conditions
The target size feature lets you adjust on-screen target resolution for better separation based on your surroundings. This is the kind of control that can matter in cluttered areas or when you need to distinguish nearby contacts more clearly.
Connectivity and integration: what to double-check before buying
This model connects via Ethernet and is intended to work with marine chartplotters. The system supports radar overlay behavior on compatible displays, and some features are designed to appear directly on your chartplotter interface. Before purchasing, confirm that your chartplotter model and radar overlay workflow are compatible, because that is the most common reason a radar upgrade feels “underwhelming” if the display side does not support the intended view.
Who this radar is best for
- Boat owners using a compatible marine chartplotter who want radar data integrated directly into their normal navigation display.
- Riders who care about tracking moving contacts, with MotionScope-style color highlighting and true echo trails.
- People who want dual range views to monitor both nearby and distant water at once.
- Anyone balancing radar performance with runtime who will actually use power save and timed transmit modes.
Who should avoid (or consider a different setup)
- If you do not have a compatible chartplotter (or you cannot verify that radar overlay and MotionScope presentation will work as expected), this is not the right purchase.
- If you only need occasional radar awareness or you mostly boat in very sheltered areas, a less feature-heavy option may be a better fit for value.
Pros and cons summary
- Best strengths: moving-target highlighting (MotionScope), echo trails for better tracking, dual range split-screen for flexible scanning, and built-in power management tools.
- Main tradeoff: your user experience depends heavily on compatibility with your chartplotter and how it presents radar features.
Verdict
The Garmin GMR Fantom™ 24x is a strong choice for boaters who want a modern 50-watt dome radar with clear tools for interpreting moving targets. If you have the right compatible chartplotter integration, the feature set is designed to make radar contact reading more intuitive, with dual range views and historical echo trails. If compatibility is uncertain, verify it first, because the “value” of MotionScope and echo trails shows up on your display workflow.
FAQ
Is the Garmin GMR Fantom™ 24x dome radar easy to use?
Available buyer feedback describes the unit as easy to use. As with most marine radar systems, the experience will also depend on how your compatible chartplotter displays and controls radar views.
What does MotionScope do on this radar?
MotionScope uses the Doppler effect to detect moving targets and highlight them in different colors on your compatible chartplotter as they move toward or away from you.
Does dual range mean split-screen on my chartplotter?
Dual range provides split-screen images on your compatible chartplotter with separate range settings and controls for both close and long range.
Can I reduce power draw when I do not need maximum performance?
Yes. The radar includes a power save feature to draw more or less power based on the performance you need, and a timed transmit mode that can specify active and inactive times down to seconds.
What is the biggest compatibility consideration before buying?
The radar is designed to work with compatible marine chartplotters, especially for features like radar overlay presentation and MotionScope/echo trail visuals. Confirm chartplotter compatibility before purchase.
Does it come with batteries?
Batteries are not included.
Specifications
| Product Title | Garmin GMR Fantom™ 24x, Dome Radar, White |
|---|---|
| Category | Electronics > Car & Vehicle Electronics > Marine Electronics > Radar Systems |
| Brand | Garmin |
| Manufacturer | Garmin |
| Model Name | GMR Fantom™ 24x |
| Model Number | 010-02585-00 |
| Item Weight | 250 Grams |
| Compatible with Vehicle Type | Boat |
| Screen Size | 24 Inches |
| Additional Features | MotionScope technology, Dual radar support, Dual range, Dynamic Auto Gain, Radar overlay support |
| Connectivity Technology | Ethernet |
| Map Types | North America |
| Mounting Type | Dashboard Mount |
| Operating System | Windows |
| Touch Screen Type | Capacitive |
| Display Type | LCD |
| Human-Interface Input | Touchscreen |
| Compatible Devices | Marine Chartplotter |
| Control Method | Touch |
| Are Batteries Included | No |
| Supported Satellite Navigation System | GPS |
| Connectivity Protocol | Ethernet |
| Sport Type | Boating |
| Built-In Media | GMR Fantom 24x; Power cable (15 m/49.21 ft); Network cable (15 m/49.21 ft); Installation instructions; Mounting hardware kit and template |
| Model Year | 2021 |
| UPC | 753759300111 |
| Mfr Part Number | 010-02585-00 |
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