# Simrad NSX 3009 vs Humminbird HELIX 9 CHIRP MEGA SI+ GPS G4N: specs and price compared

A sourced, side-by-side comparison of the Simrad NSX 3009 (Simrad) and Humminbird HELIX 9 CHIRP MEGA SI+ GPS G4N (Humminbird) among marine chartplotters.

## Side by side

| Spec | Simrad NSX 3009 | Humminbird HELIX 9 CHIRP MEGA SI+ GPS G4N |
| --- | --- | --- |
| US price | $1449 | not published |
| Brand | Simrad | Humminbird |
| Display size (in) | 9 | 9 |
| Resolution px | 1280x720 | 1024x600 |
| Sonar builtin | Single-channel CHIRP sonar port supporting HDI and Active Imaging transducers (transducer sold separately) | MEGA CHIRP + MEGA Side Imaging+ + MEGA Down Imaging+ |
| Chirp frequencies (kHz) | 50/200 base CHIRP port rating (HDI/Active Imaging transducers add higher frequencies) | MEGA CHIRP: full 150-220, narrow 180-240, wide 140-200, optional 28-250; MEGA SI+ 1050-1175; MEGA DI+ 1100-1200; also supports 50/83/200/455/800 |
| Gps type | Internal GPS, 32-channel, 10 Hz, 3 m horizontal accuracy | Internal GPS receiver with trackplotting; Humminbird Basemap preloaded (10,000+ lakes plus US coastal) |
| Touchscreen | Yes | No |
| Networking | Bluetooth 4.0, Wi-Fi 802.11b/g/n, 1 Ethernet port, NMEA 2000 (Micro-C), 1 USB, microSD | Ethernet (5-port switch compatible), NMEA 2000, Bluetooth, Wi-Fi, One-Boat Network |
| Preloaded charts | C-MAP DISCOVER X | Humminbird Basemap (10,000+ lakes plus continental US coastal coverage); LakeMaster/CoastMaster/Navionics compatible but sold separately |

## Key differences

- Resolution px: Simrad NSX 3009 1280x720 vs Humminbird HELIX 9 CHIRP MEGA SI+ GPS G4N 1024x600
- Sonar builtin: Simrad NSX 3009 Single-channel CHIRP sonar port supporting HDI and Active Imaging transducers (transducer sold separately) vs Humminbird HELIX 9 CHIRP MEGA SI+ GPS G4N MEGA CHIRP + MEGA Side Imaging+ + MEGA Down Imaging+
- Chirp frequencies (kHz): Simrad NSX 3009 50/200 base CHIRP port rating (HDI/Active Imaging transducers add higher frequencies) vs Humminbird HELIX 9 CHIRP MEGA SI+ GPS G4N MEGA CHIRP: full 150-220, narrow 180-240, wide 140-200, optional 28-250; MEGA SI+ 1050-1175; MEGA DI+ 1100-1200; also supports 50/83/200/455/800
- Gps type: Simrad NSX 3009 Internal GPS, 32-channel, 10 Hz, 3 m horizontal accuracy vs Humminbird HELIX 9 CHIRP MEGA SI+ GPS G4N Internal GPS receiver with trackplotting; Humminbird Basemap preloaded (10,000+ lakes plus US coastal)
- Touchscreen: Simrad NSX 3009 Yes vs Humminbird HELIX 9 CHIRP MEGA SI+ GPS G4N No
- Networking: Simrad NSX 3009 Bluetooth 4.0, Wi-Fi 802.11b/g/n, 1 Ethernet port, NMEA 2000 (Micro-C), 1 USB, microSD vs Humminbird HELIX 9 CHIRP MEGA SI+ GPS G4N Ethernet (5-port switch compatible), NMEA 2000, Bluetooth, Wi-Fi, One-Boat Network
- Preloaded charts: Simrad NSX 3009 C-MAP DISCOVER X vs Humminbird HELIX 9 CHIRP MEGA SI+ GPS G4N Humminbird Basemap (10,000+ lakes plus continental US coastal coverage); LakeMaster/CoastMaster/Navionics compatible but sold separately

## Sources

- Simrad NSX 3009: https://www.simrad-yachting.com/simrad/type/fishfinders-chartplotters/nsx-3009-no-xdcr-amer/ (simrad-yachting.com, verified 2026-08-01)
- Humminbird HELIX 9 CHIRP MEGA SI+ GPS G4N: https://humminbird.johnsonoutdoors.com/us/shop/fish-finders/helix/helix-9-chirp-mega-si-gps-g4n (humminbird.johnsonoutdoors.com, verified 2026-08-01)

Canonical: https://frontdeskreview.com/gear/marine-chartplotters/simrad-nsx-3009-vs-humminbird-helix-9-chirp-mega-si-plus-gps-g4n/
Cite: Per The Front Desk Review, Simrad NSX 3009 ($1449) vs Humminbird HELIX 9 CHIRP MEGA SI+ GPS G4N (not published) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/marine-chartplotters/simrad-nsx-3009-vs-humminbird-helix-9-chirp-mega-si-plus-gps-g4n/
License: CC BY 4.0.