Choosing a new head unit for your boat's navigation system involves more than picking a familiar brand. In the market for marine electronics sonar navigation equipment, you often have to decide between a lower-priced unit that needs work and a costlier one that's ready to install. That's exactly the trade-off here with the SIMRAD NSS7 EVO3 and the GARMIN GPS MAP 8008 Volvo Penta.
Quick verdict: If you can repair electronics or need a donor unit for your existing Simrad system, the $394.94 price is the cheapest way into the NSS7 EVO3 platform. If you want a Garmin touchscreen chartplotter with multiple network and video connections, the $699.95 Garmin GPS MAP 8008 Volvo Penta gives you more connectivity out of the gate.
| Product | Price | Notable Detail | Best For |
|---|---|---|---|
| SIMRAD NSS7 EVO3 | $394.94 | For parts/not working; cracked screen, no power | Buyers who can repair or need parts |
| GARMIN GPS MAP 8008 Volvo Penta | $699.95 | NMEA 2000, NMEA 0183, network, and video connections | Buyers who want a Garmin with broad connectivity |
Where each product wins
The SIMRAD NSS7 EVO3 wins on price. At $394.94, it costs $305 less than the Garmin, and the NSS7 EVO3 name includes chartplotting, fishfinding, sonar, radar, and GPS functions in one unit. The catch is the unit does not power on and has a cracked screen, so the win is only for those who can bring it back to life.
The GARMIN GPS MAP 8008 wins on connectivity and utility. It comes with an NMEA 0183 connection, an NMEA 2000 connection, four network connections, DVI-I video, and two CVBS inputs, plus engine and house connections. That's a much richer set of integration options for a boat's electronics network.
SIMRAD NSS7 EVO3
At $394.94, this is the lower-priced unit by a wide margin - $305 below the Garmin. The NSS7 EVO3 is a multi-function display that combines chartplotter, fishfinder, sonar, radar, and GPS in one head unit. If you're comfortable with electronics repair, the cracked screen and non-responsive touchscreen could be workable. However, the unit doesn't power on, and the condition is clearly described as for parts or not working. There's a 90-day warranty, but that won't change the fact that this is a repair project. Choose it if you're looking for a donor unit or you have confidence you can replace the screen and restore power.
GARMIN GPS MAP 8008 Volvo Penta
This Garmin unit, part number 2VD000078, is priced at $699.95. It brings the Garmin GPS MAP 8008 touchscreen chartplotter into a Volvo Penta-badged version, with a substantial footprint - roughly 7.5\" L x 10.5\" W x 4.5\" deep - so you'll need real dash space. Its main draw is connectivity: one NMEA 0183, one NMEA 2000, four network ports, DVI-I video, and two CVBS inputs, plus separate engine and house connections. That's a lot of flexibility for integrating sonar, radar, and other instruments into a unified boat network. The downside is the price - $305 more than the Simrad - and the larger size may complicate installation on a crowded helm.
Final choice by use case
If you're on a tight budget and have repair skills, the Simrad NSS7 EVO3 is the only way to get into a multi-function display for under $400. If you'd rather have a Garmin with a full set of connection options and are willing to pay $699.95, the GPS MAP 8008 Volvo Penta is the better-equipped choice.
