Humminbird APEX 16 MSI+ Chartplotter MFD Display Only

“Display Only” in the name is doing real work here, and it’s worth reading before you buy: the APEX 16 MSI+ is a control head built to join a Humminbird system you already have running, not to be the first piece of one. Humminbird positions it for premium saltwater center consoles, twin-helm sportfishers, and tournament bass boats in the 24 to 45-foot range that are adding a second display or upgrading a head unit inside an existing multi-transducer network.

Key Features

- 15.6″ Full HD Cross Touch IPS display at 1920×1080 — a step down from the APEX 19’s 18.5 inches, sized for a second station or a helm with less room to spare.
- Same MEGA Side Imaging+, MEGA Down Imaging+, and dual spectrum CHIRP processing as the APEX 19 — the display is smaller, the sonar processing power isn’t.
- MEGA Live Imaging Network compatible — runs live sonar transducers from an existing Humminbird network without needing its own dedicated sonar module.
- Dual Ethernet ports for networking into a multi-display Humminbird setup — built to be one node in a system, not a standalone unit.
- Lighter than the APEX 19 at 5.4 kg — matters when you’re mounting a second display where weight and swing space are tighter.

Who This Is For

This is for boats that already run Humminbird sonar hardware — an existing transducer network, MEGA Live Imaging, or another APEX/SOLIX unit — and need an additional or replacement control head, not a first-time buyer starting from zero. If you don’t already have that network in place, the APEX 19 or a bundle that includes a transducer is the more direct starting point.

Compatibility

Confirmed compatible: NMEA 2000 devices, dual Ethernet networking with other Humminbird APEX/SOLIX/HELIX displays, HDMI in/out, and Humminbird’s MEGA Live Imaging transducer network. As a display-only control head, it is not a standalone fishfinder — it depends on an existing transducer or network connection to output sonar data at all.

Technical Specifications

- Display: 15.6″ Full HD Cross Touch IPS, 1920×1080
- Sonar power: 1,000W RMS / 8,000W peak-to-peak (via connected network)
- CHIRP frequencies: 50/83/200 kHz (150-220 kHz full spectrum)
- Scanning sonar: MEGA Side Imaging+, MEGA Down Imaging+, 455 kHz / 800 kHz / 1.2 MHz
- Max depth: 3,500 ft traditional (MEGA scanning limited to 250 ft)
- Networking: Dual Ethernet, NMEA 2000, HDMI in/out, Bluetooth, Wi-Fi
- Operating voltage: 10.8-20V DC, max draw 3.6A at 12V
- Dry weight: 5.4 kg / 11.9 lbs

Warranty & Support

Covered by Humminbird’s 2-Year Limited Warranty, with a third year available free when you register the product.

Against the APEX 19, this is the right pick specifically when you’re expanding a system rather than building one — a second helm station, a twin-console setup, or a control head swap on a boat that already has the sonar hardware installed. Buying it as your only display with no existing network behind it means paying for a control head with no sonar source to read from.