Garmin Striker Plus 4 with Dual-Beam Transducer (010-01870-00)

The essentials

The Garmin 010-01870-00 Striker Plus 4 is a compact fish finder with a built-in GPS and touch control, designed for anglers who want clear sonar images without getting lost in complicated menus. On paper, the combination of a dual-beam transducer and Garmin CHIRP sonar is the main reason people look this direction: it’s meant to improve how clearly you can see underwater structure and separate targets.

You also get a 4.3” display that’s described as sunlight-readable, plus built-in Quickdraw Contours mapping software. That mapping piece matters if you like to mark productive areas and come back to them—especially if you fish the same waters often. Bluetooth support is included as well, but the exact “what for” (pairing purpose, app features) isn’t spelled out in the details provided, so you’ll want to check that against what you plan to use it for.

Key takeaways: what you’ll notice day to day

In practical terms, this is the kind of unit you buy when you want an easier on-the-boat setup than a full-blown chartplotter system. The touch interface and intuitive layout are meant to keep you focused on fishing instead of menu-diving.

Sonar clarity is the headline. Garmin’s CHIRP traditional sonar and dual-beam setup are aimed at “crystal-clear images” and “remarkable target separation.” That phrasing is marketing, sure—but the underlying intent is clear: better distinction between what’s below you, like bait, fish, and structure.

The built-in GPS adds another layer. You can mark waypoints, create routes, and view boat speed. So instead of treating the sonar as a standalone tool, you can also build a basic navigation workflow around the same screen.

Tech specs that matter (and how they translate)

This model supports traditional sonar frequencies of 50/77/83/200 kHz. The listed transmit power is 200 W (RMS), and the unit includes a dual-beam transducer.

Why this matters? Frequency support gives you flexibility depending on what you’re trying to see. Lower and higher frequencies generally get used for different goals (wider coverage vs. more detail), but what you’ll truly experience depends on conditions—water clarity, depth, and bottom type.

Where it shines vs. where it may fall short

Where it shines: if you care about getting readable sonar while you’re moving around, or if you like saving contours of familiar fishing spots. The Quickdraw Contours mapping software is specifically described as letting you create and store maps with 1’ contours for up to 2 million acres. That’s a strong amount of mapping capability for a unit in this size category.

It’s also a good fit if you want a straightforward touchscreen and a rugged build for fishing environments—the description calls it rugged by design.

What to keep in mind: it’s not presented as a top-tier, ultra-featured marine electronics system. It’s more of an all-in-one fish finder + GPS approach. If your priority is advanced charting depth, networking, or highly specialized integrations, you may find this a bit “just enough” rather than fully exhaustive—so it’s worth checking how well it matches your exact fishing style.

Best use cases (realistic scenarios)

If you fish the same lake repeatedly, this setup can make your “spot work” faster. For example: you locate an area with promising bottom structure, save the waypoint, and then create contour maps so next time you can navigate to the same depth/terrain features more confidently.

And if you’re actively searching—running along a bank or scanning a shoreline—the bright, sunlight-readable 4.3” screen and touch controls can reduce the time you spend adjusting settings mid-search. You’re still going to learn the settings that work best for your water, but the interface is built to keep that learning curve manageable.

Should you buy it?

A solid pick if you want a compact, rugged touchscreen fish finder with built-in GPS, dual-beam sonar, and CHIRP traditional support, and you’re specifically interested in creating/storing contour maps with Quickdraw.

It’s not the best choice if you need a marine setup that’s clearly aimed at deeper advanced charting or highly specialized integrations beyond what’s described here—there isn’t enough detail in the provided info to confidently say it covers more demanding workflows.

You’ll probably be happiest with it if your goal is simple: get clearer sonar images, keep navigation basics on the same screen, and save productive areas without turning your boat electronics into a project.

FAQs

Can I mark waypoints and create routes with this unit?

Yes. The built-in GPS lets you mark waypoints, create routes, and view boat speed.

Does it include mapping for contours?

It includes Garmin Quickdraw Contours mapping software, described as creating and storing maps with 1’ contours, for up to 2 million acres.

What sonar frequencies does it support?

Traditional frequencies listed are 50/77/83/200 kHz.

Is the screen usable in daylight?

The display is described as bright and sunlight-readable, which is typically the main concern for on-water use.

Does it support Bluetooth?

Bluetooth is listed as a special feature, but the provided details don’t explain the specific pairing or use case—so it’s worth confirming how you plan to use it before buying.