HD Goggles
Here you'll find links to the HD Goggles for FPV pilots based on my testing over on AOS Labs and my own experience and research. Some of these links are affiliate links (affiliate policy).
DJI
DJI Goggles N3
The DJI Goggles N3 support the DJI O3 O4, NEO and Avata 2. They only have 60 fps screens so do not support any of the low latency modes but are significantly cheaper than the Goggles 3. If you're mainly cruising and not latency sensitive these coud be a good option. Freestyle pilots should probably look at the Goggles 3.
DJI Goggles 3
The DJI Goggles 3 are the top of the line digital goggles from DJI. They support DJI O3, O4, NEO and the Avata 2. They also support race mode on the DJI O4.
Mid range
DJI Goggles Integra
Significantly cheaper than the DJI Goggles 2 the Integra goggles give up adjustable Diopters for fixed lenses and the touchpad for a joystick. The screens and video link performance are the same as the more expensive Goggles 2.
Best value
DJI FPV Goggles V2
If you are looking to get into DJI FPV at a lower price point these goggles offer large LCD screens and the option to fit aftermarket antennas.
Top of the Line
DJI Goggles 2
If you are flying DJI FPV and want the best experience these goggle bring OLED screens, a lighter weight, and a nicer user interface to the DJI ecosystem.
Walksnail Avatar
Top of the Line
Walksnail Avatar HD Goggles X
The latest and greatest goggles from Walksnail for the Avatar system. Lighter and much more comfortable than the first Walksnail goggles. 50 degree FOV and support for 1080p100 video from any Walksnail VTX. HDMI in and out, bluetooth and wifi connectivity with a companion app coming soon. If the Walksnail system is for you these are the goggles you'll want.
Best value
Walksnail Avatar Digital HD FPV Goggles w/ Patch Antennas
These goggles from Caddx offer a premium experience with the Walksnail system: 100fps, OLED screens, and a comfortable fit (for me at least). The navigation joystick for the in goggle menus can be a little imprecise.
Value add on
Walksnail Avatar VRX
Separate VRX modules offer a lower cost way to get into a system if you have existing goggles. However, they typically have higher latency than purpose built goggles.
HDZero
Best value digital
EMAX Transporter 2 HD 5.8GHz FPV HDZero Goggles
Great value box goggles with removable screen for the HDZero Digital system. This brings the cost of HDZero right down and in line with many analog systems. Perfect for racing and freestyle.
Value add on
HDZero VRX - Digital HD Receiver Module
The HDZero VRX module provides a low cost way to experience the HDZero video system on existing goggles. However, you won't achieve the lowest possible latency with the VRX due to HDMI input lag. If you're a racer you'll want to save up for the goggles.