Garmin 2026 Avionics: What Pilots Need

The important Garmin aviation GPS story in July 2026 is not an unverified future roadmap. It is AXIS, a new family of integrated flight displays that can place an IFR GPS, communications, navigation and audio functions inside one 11.6-inch display.

Garmin announced AXIS on 8 July 2026. The company says the 11.6-inch displays have FAA and EASA Technical Standard Order authorisation and will be available in July. It describes the 8-inch models, certified twin-engine indication and GFC 600 compatibility as forthcoming rather than available now.

That launch matters, but it does not make every other Garmin navigator obsolete. GTN Xi remains the larger panel-navigator family, while the GPS 175, GNC 355 and GNX 375 solve narrower retrofit jobs in a two-inch-tall format.

This guide is based on Garmin's current product pages, pilot guides and releases. It is not a hands-on test, installation approval or price quote. Compatibility, software functions, database coverage and aircraft eligibility must be checked for the exact equipment and aircraft.

Quick answer: which Garmin GPS belongs on the shortlist?

Requirement	Product family to evaluate	Main distinction
New primary or multifunction display with maximum integration	AXIS	Selected 11.6-inch variants combine display, IFR GPS, radio and audio functions
Full-size panel navigator and larger interface	GTN Xi	GTN 650Xi and 750Xi sit at the centre of Garmin's certified navigator stack
Compact IFR GPS only	GPS 175	WAAS/SBAS GPS navigation and LPV approach capability without an integrated radio or transponder
Compact IFR GPS plus VHF communications	GNC 355	Adds a communications radio to the GPS 175-style navigation job
Compact IFR GPS plus ADS-B transponder	GNX 375	Adds ADS-B In and Out through an integrated transponder
Display replacement without changing the navigator	G3X Touch, TXi, GI 275 or another eligible display	These are display/instrument products, not direct substitutes for every navigator function

Start with the missing function in the existing panel. Buying the device with the longest feature list can create unnecessary installation work if the aircraft already has a suitable radio, transponder, display or audio panel.

What is actually new in 2026?

AXIS combines categories that used to occupy separate boxes

Garmin publishes three display sizes for AXIS: an 11.6-inch landscape model and planned 8-inch portrait and landscape models. The 11.6-inch certified range includes a base PFD/MFD version, a GPS/COMM version and a GPS/NAV/COMM version. The GPS-equipped variants also include an audio panel and four-place intercom.

Garmin's release says AXIS can reuse many sensors, line-replaceable units, panel cut-outs and mounting points used by G3X Touch. That can reduce rework in an eligible installation, but it is not a promise that every existing panel is a direct swap. The approved model list, equipment interfaces, wiring, antennae, cooling, electrical load, software and installation data still need to be checked.

Availability needs to be read model by model

The 11.6-inch displays are the July 2026 product. Garmin says the 8-inch displays are expected in early 2027. The same release marks certified twin engine indication, the 8-inch formats and GFC 600 compatibility as coming later.

That distinction belongs in any quote or article about the system: announced is not the same as orderable, and orderable is not the same as approved for a particular aircraft.

Connectivity is becoming part of the panel decision

AXIS publishes built-in Wi-Fi and Bluetooth, Garmin Pilot connections, USB-C data transfer and compatibility with PlaneSync functions through a GDL 60. Garmin's PlaneSync product release describes automatic database downloads, remote aircraft status and flight or engine log uploads, with hardware, signal and subscription conditions.

Treat those as system functions, not a free feature attached to every display. Ask which hardware and subscriptions are required, when connectivity works, where data is stored and how logs can be exported.

GTN Xi: the larger navigator path

GTN Xi is the current large-format certified navigator family. The 650Xi combines GPS, NAV and COMM functions in a smaller chassis; the 750Xi provides a larger display and interface. Garmin's current aviation navigation catalogue is the right starting point for current models rather than an old installed-price comparison.

Garmin's published GTN Xi update notes include functions such as database synchronisation with the GPS 175, GNC 355 and GNX 375, chart shortcuts and configurable display fields. Those functions depend on software and connected equipment, so a quote should identify the software baseline and interfaces as well as the box.

GTN Xi deserves the first look when the owner wants a larger navigator interface, NAV radio capability, more screen area or a panel architecture built around a central navigator. It can be excessive when the real gap is only an IFR GPS, communications radio or ADS-B transponder.

The compact navigator family

Garmin groups the GPS 175, GNC 355 and GNX 375 around the same compact touchscreen format. The current pilot guide is a better source for operating detail than a sales summary.

GPS 175

The GPS 175 is the navigation-only choice. Garmin introduced it as a certified WAAS/SBAS IFR navigator capable of LPV approaches. It suits an aircraft that already has the radio and transponder functions the owner intends to keep.

GNC 355

The GNC 355 adds a communications radio. It is a logical configuration to examine when the panel needs both an IFR GPS and a replacement COMM but does not need an integrated transponder.

GNX 375

The GNX 375 adds a transponder with dual-link ADS-B In and ADS-B Out to the navigator function. Garmin's GPS 175 and GNX 375 announcement describes the original certified scope and interface. Use the current pilot guide and dealer data to confirm the software and installation being quoted now.

The decision between these three is therefore architectural, not a simple good-better-best ladder. Inventory the equipment the aircraft will retain, then avoid buying a second version of a function that is already satisfactory.

Displays and navigators are not the same purchase

The original version of this page mixed G3X Touch, GI 275, GTN Xi and portable products into one supposed 2026 GPS launch list. That is not a useful way to design a panel.

A flight display presents attitude, air data, engine, map, traffic, weather or other information according to its approved configuration. A navigator provides the certified navigation source and procedure capability. A transponder, radio, audio panel, datalink and autopilot each add another job. Some new products combine several jobs, but the installation still has to account for each one.

Create a one-page architecture before requesting quotes:

• equipment staying in the aircraft;
• equipment being removed;
• required IFR navigation and approach capability;
• primary and standby flight instruments;
• communications and navigation radios;
• ADS-B In and Out;
• audio and intercom;
• autopilot interfaces;
• traffic and weather inputs;
• mobile-device and database workflow;
• electrical, antenna and panel constraints.

That page makes competing quotes easier to compare and exposes missing adapters, subscriptions or retained equipment.

Six checks before accepting a quote

1. Aircraft eligibility

Ask for the exact approval basis and model eligibility. A TSO authorisation describes the article standard; the installation still needs an approved path for the aircraft and configuration.

2. Functions available on delivery

Separate current functions from planned ones. This is especially important for AXIS while different display sizes and compatibility items have different published timelines.

3. Interfaces and retained equipment

List every retained display, navigator, autopilot, CDI, transponder, audio panel, datalink and mobile connection. Ask the installer to identify supported, unsupported and adapter-dependent connections in writing.

4. Installed scope

The hardware price is not the installed project. Compare labour, panel work, wiring, antennae, breakers, cooling, configuration, database setup, testing, paperwork, training and contingency.

5. Software and subscriptions

Record the delivered software version, included databases, regional coverage, update method and recurring plans. A connected feature may require a datalink, service plan and usable ground connectivity.

6. Training and fallback

Use the relevant trainer, pilot guide and dealer demonstration before launch into instrument conditions. Garmin's dealer demo locator lists which product families can be demonstrated at participating locations.

Also document what remains available after a display, navigator, data link or electrical failure. Integration can simplify the panel, but it makes the failure analysis more important, not less.

Bottom line

Garmin's genuine 2026 change is AXIS: a display family that can consolidate functions that previously occupied several units. The 11.6-inch models are the current release; the 8-inch models and some compatibility items remain on Garmin's published future timeline.

GTN Xi, GPS 175, GNC 355 and GNX 375 still address distinct retrofit jobs. Choose between them by mapping the existing panel, required functions, approval path and installed scope. The right answer is the smallest coherent architecture that delivers the required capability and leaves the pilot with a clear operating and failure-recovery workflow.