caddxFPV-dat

digial camera

Several companies make digital FPV systems that can compete with or complement DJI O4. Here’s a detailed overview:

Model	Features	Notes
Caddx Nebula Pro / Vista	HD 1080p or 4K video, low-latency digital feed, small form factor	Requires compatible goggles (Fat Shark or Caddx)
Caddx Nebula Nano	Ultra-lightweight for micro quads	Limited range (~500–800 m)
Caddx Vista HD	HDMI input, supports OSD	Compatible with multiple cameras, low latency (~30 ms)

Model	Features	Notes
Walksnail Avatar Kit / Module	HD digital video, Wi-Fi phone viewing, low-latency (~100–200 ms)	Works with phone or tablet directly; good for casual FPV
Walksnail Avatar Nano	Micro lightweight module	For 2–3” frames, similar features

Camera

Model: Avatar HD V2 Camera
Image Sensor: 1/3.2-inch 4MP 4:3 sensor
Resolution:
- 1080P/60fps
- 720P/100fps
- 720P/60fps
- Compatible with 1080P/100fps and 1080P/120fps
Aspect Ratio: 16:9; native 4:3
Lens: 2.1mm
Field of View: 160°
Aperture: F2.0
Shutter: Rolling shutter
Minimum Illumination: 0.001 Lux
Weight: 7.2g
Dimensions: 19 × 19 × 22 mm
Coaxial Cable Length: 140mm

VTX

Frequency: 5.725–5.850 GHz
Transmitter Power (EIRP):
- FCC: <30 dBm
- CE: <14 dBm
- SRRC: <20 dBm
- MIC: <25 dBm
I/O Ports:
- JST1.0 × 4 (Power Input)
- JST0.8 × 6 (USB)
Mounting Holes: 25.5 × 25.5 mm; 20 × 20 mm
Dimensions: 33.5 × 33.5 × 10.5 mm
Storage: 32 GB
Recording: 1080P / 720P
Weight: 15.4 g
Operating Temperature: –20°C to 40°C
Channels: 8
Wide Voltage Input: 6V–25.2V
Supported FC Systems: Betaflight, Inav, Fettec, ArduPilot, Kiss
OSD: Canvas mode
Latency: Average 22 ms (canvas mode)
Antenna: 2 (IPEX)