Garmin ECHOMAP UHD2 74cv with GT20 Transducer vs Lowrance Eagle Eye 9 Live Sonar
Updated August 2026 — Garmin ECHOMAP UHD2 74cv with GT20 Transducer wins on price and ease of use, Lowrance Eagle Eye 9 Live Sonar wins on display and sonar.
The Lowrance Eagle Eye 9 offers advanced live sonar technology and a larger display, making it a better choice for serious anglers, while the Garmin ECHOMAP UHD2 provides excellent value for budget-conscious users.
Why Garmin ECHOMAP UHD2 74cv with GT20 Transducer is better
Price
Garmin is $299 cheaper than Lowrance.
Mapping
Garmin has coastal mapping.
Ease of Use
Garmin has a simpler interface.
Why Lowrance Eagle Eye 9 Live Sonar is better
Display
Lowrance has a larger 9-inch screen.
Sonar Technology
Lowrance offers live sonar capabilities.
Sales Rank
Lowrance has a better sales rank.
Overall score
Specifications
| Spec | Garmin ECHOMAP UHD2 74cv with GT20 Transducer | Lowrance Eagle Eye 9 Live Sonar |
|---|---|---|
| Screen Size | 7 inches | 9 inches |
| Transducer | GT20-TM | Transom-Mount |
| Live Sonar | No | Yes |
| Mapping Type | Garmin Navionics+ | C-MAP Inland |
| Sales Rank | 24342 | 10007 |
Dimension comparison
Overview of the Garmin ECHOMAP UHD2 74cv and Lowrance Eagle Eye 9
The Garmin ECHOMAP UHD2 74cv is priced at $699.99, while the Lowrance Eagle Eye 9 costs $999.00, making the Garmin about 30% cheaper. Both devices serve as advanced fish finders and chartplotters, but they come with different features and capabilities that cater to various fishing needs.
The Garmin ECHOMAP UHD2 74cv features a 7-inch display and includes the GT20-TM transducer, offering traditional sonar and ClearVü scanning sonar. It also comes preloaded with Garmin Navionics+ mapping for U.S. coastal waters, enhancing navigation and fish-finding capabilities. On the other hand, the Lowrance Eagle Eye 9 boasts a larger 9-inch IPS screen and provides live sonar capabilities, including real-time views of fish behavior.
Display Quality and Size
The display quality and size are essential factors when choosing a fish finder, and here the Lowrance Eagle Eye 9 has a notable advantage. It features a 9-inch IPS display, which provides excellent clarity and wide viewing angles, even in bright sunlight. In comparison, the Garmin ECHOMAP UHD2 has a smaller 7-inch screen, which may be more challenging to read in certain conditions.
The larger display of the Lowrance allows for better detail visibility and ease of use, especially when viewing multiple sonar modes. While the Garmin's display is bright and sunlight-readable, the difference in screen size can be a significant factor for anglers who prefer a more expansive view of underwater activity.
Sonar Technology
When it comes to sonar technology, both products offer impressive features, but they cater to different preferences. The Garmin ECHOMAP UHD2 utilizes traditional sonar and ClearVü scanning sonar, providing clear and sharp fish arches. It allows users to see underwater structures in high contrast, making it easier to locate fish.
Conversely, the Lowrance Eagle Eye 9 stands out with its focused live sonar capabilities, offering real-time forward and down views. It includes four sonar modes—Live Forward, Live Down, CHIRP Sonar, and DownScan Imaging with FishReveal. This versatility makes it a strong contender for anglers looking for detailed, real-time insights into fish behavior and underwater structures.
Mapping Features
In terms of mapping features, both fish finders offer preloaded charts, but they serve different regions and functionalities. The Garmin ECHOMAP UHD2 includes Garmin Navionics+ mapping, which provides extensive coverage of U.S. coastal content, making it ideal for saltwater fishing.
On the other hand, the Lowrance Eagle Eye 9 comes with preloaded C-MAP inland charts, covering over 17,000 U.S. lakes. This makes it an excellent choice for freshwater anglers who fish in lakes and rivers. The inclusion of Genesis Live for custom contour mapping in the Lowrance also adds a layer of personalization and adaptability to the fishing experience.
Ease of Use and Installation
Both devices are designed for ease of use, but the installation process can vary. The Garmin ECHOMAP UHD2 is straightforward, featuring an easy-to-use keyed interface, which is beneficial for those who prefer a simpler navigation method. The unit is also equipped with built-in Wi-Fi, allowing users to share sonar, waypoints, and routes with other compatible Garmin devices.
The Lowrance Eagle Eye 9 is designed for quick and hassle-free installation, thanks to its reliable twist-lock connector system. This system simplifies the setup process for users, making it easy to get on the water quickly. Additionally, the intuitive interface of the Lowrance ensures that even novice users can navigate its features without difficulty.
Price and Value
In terms of pricing, the Garmin ECHOMAP UHD2 is positioned at $699.99, which is approximately $299 less than the Lowrance Eagle Eye 9, priced at $999. This significant price difference suggests that the Garmin offers excellent value for those seeking high-quality fish-finding capabilities without breaking the bank.
While the Lowrance provides advanced features like live sonar and a larger display, the Garmin’s price point may appeal more to budget-conscious anglers who still want reliable performance and essential mapping features.
Customer Reception
Customer reception can provide insight into the reliability and effectiveness of these products. The Garmin ECHOMAP UHD2 has a sales rank of 24,342, indicating a moderate level of popularity among users. In contrast, the Lowrance Eagle Eye 9 boasts a better sales rank of 10,007, suggesting that it is well-received and preferred by a larger segment of the fishing community.
This difference in sales rank may reflect the growing interest in live sonar technology, which the Lowrance excels in, attracting more customers who seek the latest advancements in fish-finding technology.
Which should you buy?
Choosing between the Garmin ECHOMAP UHD2 74cv and the Lowrance Eagle Eye 9 ultimately depends on your specific fishing needs and budget. If you are looking for a more affordable option with reliable traditional sonar and good mapping for coastal waters, the Garmin ECHOMAP UHD2 is an excellent choice. However, if you prioritize cutting-edge live sonar technology, a larger display, and extensive inland mapping, the Lowrance Eagle Eye 9, despite its higher price, may be the better investment. Consider what features matter most to you, as both devices offer unique benefits tailored to different fishing environments.

