A GPS combo — one screen that does sonar and charts, waypoints and navigation — is the mainstream choice for good reason. These are the units that get the balance of imaging, mapping and value right for real boats.
The big decision isn't really the brand — it's the chart ecosystem and how much imaging you want. Get those right and any of the big three will serve you for years. New to the category? The standalone vs. combo guide explains why most anglers land on a combo.
01What separates a great combo
- Chart ecosystem. Garmin uses Navionics+, Lowrance uses C-MAP, Humminbird uses LakeMaster/CoastMaster. All cover huge numbers of lakes and coasts; pick based on coverage of your waters.
- Imaging. Most quality combos bundle CHIRP plus down and side imaging in a 3-in-1 transducer. Confirm the included transducer actually does what the display can show.
- Touchscreen vs. keyed. Touch is slick; physical keys are easier with wet, cold or gloved hands. Many units offer both.
- Room to grow. Networking and live-sonar compatibility matter if you'll expand later.
02The best GPS combos
Garmin ECHOMAP UHD2 73sv
$$Our all-around favorite combo. A 7″ touchscreen (with keyed assist) running CHIRP, ClearVü and SideVü imaging, preloaded Navionics+ charts with daily-update subscription, and LiveScope compatibility for later. Hard to beat for the money.
Lowrance Elite FS 9
$$$The mid-tier sweet spot for many freshwater anglers. A 9″ touchscreen with Active Imaging HD, C-MAP DISCOVER charts, Genesis Live on-screen mapping, and ActiveTarget 2 live-sonar compatibility. Networks and drives Ghost/RECON trolling motors.
Humminbird HELIX 7 CHIRP MEGA SI GPS G4N
$$The only 7″ with MEGA Side Imaging and Dual Spectrum CHIRP — class-leading imaging clarity, plus LakeMaster basemap and One-Boat Network. Button-driven and rugged; a structure-angler favorite.
Lowrance HOOK Reveal 7
$$A value combo done right: Active Imaging 3-in-1 (down + side + CHIRP), FishReveal target highlighting and preloaded C-MAP on a roomy 7″ screen. Excellent imaging-per-dollar for a first serious combo.
Lowrance Eagle Eye 9
$$Notable as the most accessible combo that includes forward-facing live sonar — a 9″ unit with Active Imaging 3-in-1 and live sonar capability without a separate black box. A lot of future-proofing in one buy.
Garmin ECHOMAP Ultra 2 (10-16″)
$$$When you want a big sunlight-readable screen: 10, 12 or 16″ with the highest-res scanning in the ECHOMAP line, Navionics+ charts, wireless networking and full LiveScope support. A premium helm combo.
03Choosing your chart ecosystem
| Ecosystem | Brand | Strength |
|---|---|---|
| Navionics+ | Garmin | Huge coverage, daily updates, depth shading, community Quickdraw |
| C-MAP | Lowrance | 1-ft contours on tens of thousands of lakes, Genesis Live real-time mapping |
| LakeMaster / CoastMaster | Humminbird | Detailed inland & coastal charts, included on newer units |
All three let you record your own contours as you idle. Pick the one with the best coverage of the water you actually fish — that matters more than brand loyalty.
An imaging-capable display paired with a basic transducer can't show imaging. Always confirm the bundled transducer matches the views you're paying for.
04Which combo should you buy?
For the best balance of price, imaging and a clear upgrade path, the ECHOMAP UHD2 73sv is our default. Want a touchscreen and the cleanest path to live sonar? The Elite FS 9. Chasing maximum imaging clarity on a budget screen size? The HELIX 7 MEGA SI. Want live sonar baked in cheaply? The Eagle Eye 9. Still deciding between brands? See Garmin vs. Humminbird vs. Lowrance.