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The Verdict
The Garmin ECHOMAP™ Ultra 2 166sv is a powerhouse command center designed for anglers who refuse to compromise on visibility. The 16-inch full HD IPS touchscreen provides massive screen real estate that remains crisp even in direct sunlight, while the multi-band GPS delivers elite-level positioning accuracy and 10 Hz updates. Users value the wireless networking capabilities, which allow for seamless sharing of waypoints and routes between units without the headache of additional cables. The inclusion of the GT56UHD-TM transducer ensures top-tier scanning sonar right out of the box, with full support for the LiveScope™ system.
The primary trade-offs are the premium price point and a high power draw, necessitated by the massive 16-inch display; you will need a dedicated high-capacity battery system to run this unit for full tournament days. Furthermore, while wireless networking handles most data, LiveScope sonar still requires a wired connection to share across multiple screens. However, these factors are standard for flagship electronics. The 166sv remains a definitive "buy" because the unmatched situational awareness and superior GPS precision justify the investment for serious offshore or tournament anglers who need to see more and react faster than the competition.
The primary trade-offs are the premium price point and a high power draw, necessitated by the massive 16-inch display; you will need a dedicated high-capacity battery system to run this unit for full tournament days. Furthermore, while wireless networking handles most data, LiveScope sonar still requires a wired connection to share across multiple screens. However, these factors are standard for flagship electronics. The 166sv remains a definitive "buy" because the unmatched situational awareness and superior GPS precision justify the investment for serious offshore or tournament anglers who need to see more and react faster than the competition.
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About this product
- 16” touchscreen with keyed assist and full HD in-plane switching display offers built-in tools to help you find and catch fish
- Preloaded Garmin Navionics+ mapping offers integrated coastal and inland lake coverage plus Auto Guidance+ technology (for planning purposes only; does not replace safe navigation operations); add premium Garmin Navionics Vision+ mapping for high-resolution relief shading and more
- Vivid scanning sonar color palettes make it easy to distinguish targets and structure
- Built-in support for the full line of live sonar products, including the LiveScope System plus Garmin CHIRP traditional sonar and UHD ClearVü and SideVü scanning sonars (sold separately)
- Both wired and/or wireless networking allows for easy sharing of sonar, waypoints and routes with another ECHOMAP Ultra 2 or ECHOMAP UHD2 chartplotter on board (optional LiveScope sonar cannot be shared wirelessly)
Specifications
- Brand
- Garmin
- Model
- 010-03386-01
- Brand
- Garmin
- Screen Size
- 16 Inch
- Control
- Touchscreen
- Sonar
- Live Sonar
- Maps
- North America
- Transducer
- Transducer Included
- Connectivity
- Wi-Fi, NMEA 2000, NMEA 0183
- Width
- 10.5 inches
- Height
- 13.8 inches
- Depth
- 3.14 inches
- Weight
- 9.5 pounds
- Colour
- GT56UHD-TM transducer
- Warranty
- 2 Year Limited Warranty
- Released
- 2025-07-08T00:00:01Z
- Part number
- 010-03386-01
- Manufacturer
- Garmin
- GTIN
- 00753759353360