For anyone shopping in marine electronics sonar navigation, the biggest decision is often whether to prioritize a new display or a tested touchscreen chartplotter. One option is a 5-inch marine GPS navigator with a dual chart system; the other is a Garmin GPSMAP 1242xsv Touch that has been checked and is ready to use. Here's how they compare.
Quick Verdict
If you want a brand-new GPS navigator with a dual chart system and a compact 5-inch screen, choose the Boat GPS Navigator 5in Marine GPS Navigator AIS TFT LCD Screen LED Backlight. It's listed at $336.52. If you prefer a touchscreen chartplotter that's been tested and fully functional, go with the Garmin GPSMAP 1242xsv Touch Chartplotter Marine GPS Display at $1,897.00, provided you're comfortable with a used unit.
Comparison Table
| Feature | Boat GPS Navigator 5in | Garmin GPSMAP 1242xsv Touch |
|---|---|---|
| Listed price | $336.52 | $1,897.00 |
| Condition | New | Used, tested |
| Display | 5-inch TFT LCD with LED backlight | Touchscreen, clear and bright |
| Positioning | GPS + compass dual mode | GPS chartplotter |
Where Each Product Wins
Where the 5-inch Navigator Wins
- New condition, so no prior service wear.
- Dual chart system with C-MAP and XINUO MAP.
- Compact 5-inch display that fits smaller helm layouts.
Where the Garmin Wins
- Touchscreen display for easy chart interaction.
- Tested and described as fully functional with a clear, bright screen.
- Includes cover and power cable.
Product Notes
Boat GPS Navigator 5in Marine GPS Navigator AIS TFT LCD Screen LED Backlight
This brand-new unit uses a 5-inch TFT LCD with 480 x 272 resolution and an LED backlight. The wide viewing angle helps the screen stay readable from different positions, and the DC 12-36V power input adapts to many boat electrical systems. For positioning, it combines GPS with a compass for accurate position, speed, and heading data. The built-in dual chart system includes C-MAP and XINUO MAP, so you can switch between chart formats. It also supports multiple languages and six screen modes. The main reason to choose this navigator is the new condition plus the dual-chart GPS in a compact package. The limitation is the 5-inch screen: it's small enough that you'll likely need to look closely while navigating, especially if you're used to a larger chartplotter.
Garmin GPSMAP 1242xsv Touch Chartplotter Marine GPS Display
This chartplotter is a used unit that was recently removed from service and tested. It comes with the cover and power cable, and the display is described as clear and bright. The touchscreen interface is the standout reason to pick this model, since it makes zooming and panning on the chart feel more direct. As a tested, fully functional display, it offers a ready-to-run option if you prefer a touch-controlled chartplotter. The limitation is its used condition: you're buying gear that has already been in service rather than a brand-new unit. If you're comfortable with that history and want a touchscreen chartplotter, this is the direction to go.
Final Choice by Use Case
If you're equipping a smaller boat or a secondary nav station, the Boat GPS Navigator 5in Marine GPS Navigator AIS TFT LCD Screen LED Backlight gives you a new unit with dual chart support and a straightforward GPS/compass setup. For a primary helm where you want a touchscreen chartplotter and are comfortable buying a used, tested display, the Garmin GPSMAP 1242xsv Touch Chartplotter Marine GPS Display is the better fit. Choose the 5-inch unit for its new condition and compact footprint; choose the Garmin for its touch interface and tested working status.
