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Dynon SkyView HDX vs Garmin G3X: Which Fits Your Panel?
The better EFIS is not the one with the longest feature list. It is the system that fits your aircraft, installation plan, existing avionics, autopilot strategy and approval requirements.
Dynon SkyView HDX vs Garmin G3X Touch: Start With the Aircraft
Comparing these systems as if they were interchangeable tablets misses the most important part of the decision. An EFIS is part of an aircraft avionics architecture. Your existing navigator, autopilot, engine-monitoring equipment, transponder, standby instruments, wiring and aircraft approval status can all affect the best choice.
| Decision factor | SkyView HDX | G3X Touch |
|---|---|---|
| Best starting point | Builders wanting a flexible Dynon-centered panel and modular approach. | Pilots wanting a Garmin-centered avionics ecosystem. |
| User interface | Touch interface with physical controls depending on display/configuration. | Touch interface with dedicated controls/knobs on applicable displays. |
| Engine monitoring | Strong choice where Dynon engine-monitoring integration is important. | Strong EIS integration within the Garmin ecosystem. |
| Navigation ecosystem | Can be integrated into mixed-brand configurations where supported. | Particularly attractive with compatible Garmin navigators and other Garmin equipment. |
| Autopilot strategy | Depends on aircraft category, Dynon equipment and applicable approval. | Can integrate with Garmin autopilot solutions; certified installations require the applicable approval. |
| Certified-aircraft question | Verify the current Dynon STC/AML and installation limitations. | Verify the current Garmin STC/AML and compatible equipment. |
Where Garmin G3X Touch Has a Clear Advantage
Garmin’s strongest argument is ecosystem depth. The certified G3X Touch is designed to interface with a range of Garmin navigators, transponders, audio equipment and autopilot systems. Garmin also documents G3X Touch integration with the GFC 500 autopilot and compatible navigation sources for coupled approaches in approved configurations. citeturn2search0turn2search16
Choose G3X Touch when ecosystem consistency matters
- You already operate compatible Garmin navigation equipment.
- You want a panel built around Garmin’s navigation and flight-control ecosystem.
- You are evaluating a GFC 500-based autopilot installation where your aircraft is approved.
- You value Garmin’s display/interface approach and want room to expand within that ecosystem.
Garmin’s current certified G3X Touch information lists display options, GFC 500 integration, compatible navigators and other interfaces. Exact compatibility should still be checked against the current Garmin documentation and your aircraft configuration. citeturn2search0
Where Dynon SkyView HDX Can Be the Better Fit
SkyView HDX can make strong sense for builders who prefer Dynon’s architecture, engine-monitoring approach and modular panel philosophy. The important point is not that one system universally beats the other; it is that your desired architecture may favor one manufacturer.
- Experimental/kit-built project: evaluate the complete system rather than a single display.
- Phased upgrade: consider how easily your planned components can be added later.
- Engine monitoring: compare the depth of the engine data and sensors you actually need.
- Mixed-brand panel: verify each proposed interface rather than assuming two avionics products will communicate because they use similar terminology.
- Builder support: compare the installation documentation, wiring approach and support resources available for your specific project.
The Autopilot Question Can Change the Answer
Do not choose an EFIS first and assume the autopilot will work later. For many aircraft, the autopilot and display are part of a larger approval and interface decision.
- Is the exact aircraft make/model covered by the applicable approval?
- Does the approval cover the relevant serial-number range or configuration?
- Is the autopilot separately approved for the aircraft?
- Are the intended navigator, transponder and standby instruments compatible?
- Are there installation limitations or required equipment that affect the proposed configuration?
Garmin’s current certified G3X Touch information explicitly lists compatible autopilot and navigation interfaces, while Garmin’s documentation also distinguishes the display interface from the applicable autopilot installation requirements. citeturn2search0turn2search17
Experimental vs Certificated Aircraft: A Critical Difference
| Question | Experimental / kit-built | Certificated aircraft |
|---|---|---|
| Primary constraint | Aircraft design, installation method, equipment compatibility and applicable operating/maintenance requirements. | Applicable approved data, STCs/AMLs, installation limitations and maintenance requirements. |
| Autopilot choice | Evaluate system compatibility and aircraft installation requirements. | Verify the applicable autopilot approval independently. |
| Documentation | Follow the aircraft/equipment documentation and applicable requirements. | Approved installation data and required records become especially important. |
| Best comparison method | Compare the complete panel architecture and build effort. | Start with aircraft eligibility and approved configuration, then compare features. |
Display and Controls: Look Beyond the Spec Sheet
Modern EFIS displays can make both systems look impressive in a comparison table. In practice, the controls and workflow matter just as much as resolution or screen size.
Questions worth asking
- Can you make common adjustments without hunting through menus?
- How comfortable are you using the interface in turbulence?
- Which functions have dedicated physical controls?
- Can the display show the information you actually use without excessive page changes?
- Does the interface make sense to every pilot who will fly the aircraft?
Garmin’s current G3X Touch certified product information includes touchscreen controls plus dedicated bezel controls/knobs on applicable configurations. citeturn2search0
Navigation, ADS-B and Avionics Integration
Do not compare “GPS,” “ADS-B,” or “autopilot” as isolated checkboxes. Determine which hardware provides the function and how the devices exchange data.
| System area | What to verify |
|---|---|
| GPS/navigation | Which navigator supplies the approved navigation function? Is the EFIS receiving the required data? |
| ADS-B | Which transponder or receiver provides ADS-B data? Is the intended interface supported? |
| Autopilot | Which system supplies attitude, heading, navigation and flight-director information? Is the interface approved for the aircraft? |
| Engine monitoring | Which sensors/modules are required, and does the system support the engine data you need? |
| Standby instruments | What independent backup is required or desired, and how does it interact with the primary system? |
Do Not Choose on Display Size Alone
A larger screen is useful only if the rest of the panel architecture supports it. Consider panel space, electrical load, mounting, wiring, cooling, redundancy and future expansion before deciding that the biggest display is automatically the best purchase.
A Better Buying Checklist
- Identify the aircraft category: experimental, light-sport or certificated.
- Write down the exact aircraft model and configuration.
- List existing avionics you intend to retain.
- Choose the navigation architecture.
- Choose the autopilot strategy.
- Define engine-monitoring requirements.
- Verify every required interface.
- For certificated aircraft, verify the current approval/AML and installation data.
- Price the complete installation—not just the display.
- Confirm documentation and support before ordering.
What About the Garmin G5?
If your project is already moving toward Garmin avionics, the G5 can be relevant as a standby or supporting flight instrument in compatible configurations. Garmin’s certified G3X Touch information specifically describes G5 integration in supported installations. citeturn2search0
Jet Aviation Spare Parts also carries Garmin G5 equipment for certified-aircraft applications, including the G5 Electronic Flight Instrument Kit and G5 HSI with GPS/NAV interface. For installation planning, see our Garmin G5 installation guide.
Where This Fits in an Avionics Upgrade
EFIS selection is only one part of an avionics project. You may also need to evaluate transponders, ADS-B, altitude encoders, GPS sources and documentation.
- Browse Jet Aviation Spare Parts avionics
- Aircraft altitude encoders
- ADS-B solutions
- Aircraft parts certification
- Aircraft parts receiving inspection
Choosing Between Dynon and Garmin?
Start with your aircraft, existing equipment and installation requirements. Then compare the complete system—not just the headline features of the display.
Browse Avionics Buying ChecklistFrequently Asked Questions
Neither is universally better. The right choice depends on aircraft type, existing avionics, desired autopilot, engine-monitoring needs, installation approach and, for certificated aircraft, applicable approval and compatibility.
Both can be strong options. Compare the complete architecture, including displays, ADAHRS, engine monitoring, navigation, ADS-B, autopilot, wiring and future expansion.
G3X Touch is the natural system to investigate first when the panel is already centered on compatible Garmin navigators, transponders and autopilot equipment.
Yes, Garmin documents G3X Touch integration with the GFC 500 in compatible installations. Certified aircraft require the applicable approval and installation documentation. citeturn2search0turn2search16
No. If an autopilot is part of the upgrade, evaluate the two together. On a certificated aircraft, verify the applicable approval for the specific aircraft and configuration before purchasing.
Compatibility with the aircraft and the rest of the panel. A feature-rich display is not useful if the required equipment, interfaces or approval basis do not fit the intended installation.