Buying a fish finder usually means deciding what kind of angler you are. Do you need a simple depth reading, or do you want a full navigation screen with charts and side scanning? In marine electronics sonar navigation, the gap between an entry-level depth finder and a feature-rich fish finder is large, and the right pick depends on how you fish and how much detail you want on the water.
Quick verdict: If you want an affordable, straightforward depth finder, the Garmin Fishfinder Depth Finder 80 at $65 is the practical choice. If you want a more capable system with extra navigation features, the Humminbird 597ci 597 HD at $252 is the stronger investment. The trade-off is simple: budget versus capability.
| Garmin Fishfinder Depth Finder 80 | Humminbird 597ci 597 HD | |
|---|---|---|
| Price | USD 65.00 | USD 252.00 |
| Condition | Used | New other (see details) |
| Sonar | Yes | Yes |
| Highlights | Decimal and Imperial measurement | Color display, chart plotting, side scanning, depth alarm, expandable memory |
Where each product wins:
- Garmin Fishfinder Depth Finder 80 wins for price and simplicity. It's the lower-cost way to get depth readings on your boat.
- Humminbird 597ci 597 HD wins for capability. It delivers a richer on-water information experience.
GARMIN Fishfinder Depth Finder 80
The Garmin Fishfinder Depth Finder 80 is the lower-priced pick. It provides depth finding with both Decimal and Imperial measurement options, so you can switch between unit systems depending on your preference. Its plastic housing is built for the marine environment, and the depth sensor is designed for fishing. For an angler who just wants to know how deep the water is and whether fish are below, this unit keeps things simple. The condition is Used, so the trade-off for the lower price is that you are buying a pre-owned unit. If you want a simple, no-fuss depth finder for basic fishing, this is where to start. The price makes it accessible as a starter unit, and the focus is on the essentials rather than a full screen of maps and waypoints.
Humminbird 597ci 597 HD Fish Finder sonar
The Humminbird 597ci 597 HD is the feature-heavy option. It pairs a color display with chart plotting, side scanning, depth alarms, and expandable memory, making it a strong fit for anglers who like to see bottom structure and waypoints on a screen. The color display makes it easier to interpret what is below the boat, and the side scanning expands your view beyond the direct beam. With expandable memory, you can store more waypoints and charts. The condition is New other (see details), so it is not strictly brand new; that is the main condition trade-off. Its higher price buys the extra capability and the richer on-water navigation experience. For an angler who spends time learning specific structure and returning to the same spots, the extra information can justify the cost.
No matter which you choose, make sure it fits the way you fish. A simple depth finder is enough for many trips; a feature-rich sonar earns its keep when you explore new water or need to mark structure.
Final choice by use case: If budget is your priority, choose the Garmin Fishfinder Depth Finder 80. If you want the full navigation experience, choose the Humminbird 597ci 597 HD.
