Uploaded February 2026 | Updated September 2026, 6 hours ago

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Update: Skyzone has released new firmware for the 04x Pro which basically fixes all of the issues. No update for the 04o Pro though.

If you run the tests and somehow manage to get average latency of 8-12ms, please let me know. I'd love to be proven wrong so I can actually use my goggles.
Heads up for iPhone users: The 240fps slo-mo is not actually 240fps and more like 120-160fps.

Patreon: patreon.com/cw/NilsVo
Latency tester (contains flashing images): latency-tester.thezonefpv.com
Discord: discord.gg/jhAK4UesUF
My FPV Sim: store.steampowered.com/app/3491280/The_Zone__FPV_Drone_Simulator

Test quad setup:
Camera: Foxeer T-Rex, NTSC 4:3
VTX: Foxeer Reaper Extreme v3
Flight controller: NBD Hummingbird 305 F722
Dirty power and bad grounding: Yes I know

0:00 - Intro
1:10 - Latency test setup
2:34 - How it should look like
3:08 - 04o Pro latency results
3:37 - Fatshark HDO2 latency results
4:11 - Video smoothness test
5:59 - Is my goggle just broken?
7:02 - What about the 04x Pro?
7:44 - 04x Pro latency results
9:21 - Ads reeeeeeee
10:14 - Putting it into perspective
12:13 - Community test results
12:52 - Rest of the review
15:51 - What am I gonna get now?