There is no single best chartplotter for commercial fishing, because the requirement changes completely between a small coastal craft working within sight of land and a trawler operating in deep water for days at a time. What follows sets out the units in the Garmin and Haiyang marine range against the specifications that actually decide the choice: display size, sonar output and depth range, GNSS receiver capability, and how the unit interfaces with the rest of the boat.
Built for the Indian market: Garmin GPSMAP 585Plus
The GPSMAP 585Plus is the one unit here that Garmin describes as made for India, with support for Indian local languages. It is a 6 inch WVGA colour display in portrait orientation with a keyed interface and dedicated buttons rather than a touchscreen, which suits a wet working helm. Sonar is a built-in 600 W RMS CHIRP traditional sounder with CHIRP ClearVu scanning, and positioning covers GPS, GLONASS and BeiDou with capacity for up to 12,000 waypoints. It includes Quickdraw Contours, which builds personal depth contour maps from the sounder data as the boat works, and takes two standard SD cards for chart data. For a boat where the crew works in a local language and the priority is marking and returning to ground, that combination is hard to match elsewhere in the range.
Entry and mid-size combos: Haiyang HD-50CF and HD-880CFA
The Haiyang HD-50CF is a 5 inch WVGA combo with a dual-frequency 50 and 200 kHz sounder rated at 600 W or 1.5 kW, giving depth coverage from 2.5 m to 1,500 m. Its GNSS receiver covers GPS, GLONASS, QZSS and Galileo across 52-plus channels with DGPS and SBAS augmentation, and it holds 100,000 waypoints, 50,000 track points and 100 routes against HY-MAP, C-MAP or Navionics charts. It is built to IMO Resolution MSC.112(73) and runs on a wide 12 V to 36 V supply. That is a substantial specification for a 5 inch unit, and it suits a small boat where console space is the constraint but the sounder still has to reach deep water.
The Haiyang HD-880CFA carries the same 1.5 kW dual-frequency sounder and the same 1,500 m depth range onto an 8 inch SVGA display. The extra screen area is the point: it makes running a chart and a sonar trace side by side workable rather than cramped, which is the normal working configuration on a fishing boat.
Larger wheelhouse units: Vega VG-10CF, VG-12CF and KS-101C
The Haiyang Vega VG-10CF moves to a 10.4 inch colour touchscreen with the same dual-frequency 50 and 200 kHz sounder at 600 W or 1.5 kW and the same 2.5 m to 1,500 m range, but adds a faster navigation update rate of up to 4 Hz alongside the standard 1 Hz. The Haiyang VG-12CF takes the same platform to a 12.1 inch multi-touch display with a rotatable screen and remote control support. The Haiyang KS-101C is a chartplotter rather than a combo, a 10.1 inch WXGA touchscreen at 1024 x 600 with GNSS update rates up to 10 Hz, 100,000 waypoints and 100,000 track points, arrival, anchor, cross-track, userline and CPA/TCPA alarms, and, importantly for a boat with a wider instrument fit, NMEA 2000 input as well as NMEA 0183.
Where a full multi-function display makes sense
The Garmin GPSMAP 923xsv is a 9 inch WXGA touchscreen at 1280 x 720 with a built-in 1 kW CHIRP sonar module offering traditional, ClearVu and SideVu scanning down to 1200 kHz, a 10 Hz GPS, GLONASS and Galileo receiver with WAAS, and an IPX7 housing. The GPSMAP 1223xsv is the 12.1 inch version at 1280 x 800 with an added HDMI output. What separates these from the chartplotter combos above is networking: NMEA 2000, dual NMEA 0183 ports, a J1939 port, video input and the Garmin Marine Network, which is what allows a Garmin radar to be added later and displayed on the same screen. If the boat is likely to grow into radar and networked sensors, that matters. If it never will, it is capability being paid for and not used.
Choosing between them
- Small coastal craft, limited console space, local-language crew: GPSMAP 585Plus or Haiyang HD-50CF.
- Enclosed wheelhouse running chart and sonar together, deep water: Haiyang HD-880CFA.
- Larger vessel, touchscreen operation, longer viewing distance: Haiyang Vega VG-10CF or VG-12CF.
- Chartplotter only, with NMEA 2000 instruments and AIS to integrate: Haiyang KS-101C.
- A networked helm that will later carry radar and additional displays: Garmin GPSMAP 923xsv or 1223xsv.
Two practical points apply across all of them. The Haiyang units are built to IMO Resolution MSC.112(73) and run from a 12 V to 36 V supply, which suits the varied electrical systems found on working boats. And the transducer, not the head unit, sets what the sounder can actually see, so the 1.5 kW ratings above are only meaningful with a transducer matched to them and properly installed.
ASPL introduced marine GPS to India's fishing communities and supplies equipment under government fisheries schemes, including the documentation those programmes require, with a nationwide collection network behind the service side.