Review: Walksnail Avatar 1S Mini VTX + Nano Camera

How does it compare to the original Avatar VTX and Camera (Full Size)?

by Oscar
Walksnail Avatar 1s Mini Vtx Nano Cam

The Walksnail Avatar 1S Mini VTX and Nano Camera are designed for 1S whoops and micro drones. It’s light weight and takes 1S input voltage, yet with little compromise to image quality and features. Let’s check out how it compares to the full size camera and VTX in this review.

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The Avatar 1S Mini VTX and Nano camera are first used in the BetaFPV Meteor75, check out how it flies here.

Further Reading:

Where To Buy?

Update (Mar 2023): there is now a new version, the Walksnail Avatar HD Mini 1S Lite Kit!

It comes with the following accessories:

  • 1x Walksnail Avatar IPEX (U.FL) Antenna
  • 1x 6-Pin Power Cable
  • 2x M2 4mm Screws
  • 1x 4-Pin USB Cable


Walksnail Avatar 1s Mini Vtx Nano Cam Ribbon Cable Side

  • Resolution: 1080p/60FPS or 720p 60FPS or 720p/120FPS switchable
  • Aspect Ration: 4:3 / 16:9 switchable
  • Minimum Illumination: 0.001Lux
  • Shutter Style: Rolling Shutter
  • Cable Length: 90mm
  • Image Sensor: 1/2.7″
  • Field Of View: 170°
  • Aperture: F 2.0
  • Lens: 2.1mm
  • Dimensions: 14x14x17mm
  • Weight: 3.5g


  • Up to 350mW Output Power
  • Input Voltage: 3.1V – 5V
  • Input Power Connector: JST1.0 6-pin
  • Firmware Update Connector (to USB-A): JST1.0 4-pin
  • Supported FC Firmware: Betaflight
  • Antenna Connector: IPEX (U.FL)
  • Bitrate: 25mbps/50mbps
  • Internal Storage: 8GB for recording
  • Mounting: 25.5×25.5mm
  • Dimensions: 33x33x6.5mm
  • Weight: 6.8g


  • Radiation Efficiency: >= 98%
  • Bandwidth: 5.6-5.9GHz
  • Gain: 2dBi Average
  • Polarization: LHCP
  • Connector: IPEX
  • Length: 90mm
  • VSWR: <=1.4
  • Weight: 1.5g

Closer Look at the Avatar 1S Mini VTX Nano Camera

Walksnail Avatar 1s Mini Vtx Nano Cam

The Avatar 1S Mini VTX and Nano Camera combo has pretty much the same feature set as the full size setup:

  • full Betaflight OSD support
  • 1080p 60FPS / 720p 120FPS, 25/50mbps switchable
  • same 25.5×25.5 mounting

The chipset appears the same.

Walksnail Avatar 1s Mini Vtx Nano Cam Top Pcb

Walksnail Avatar 1s Mini Vtx Nano Cam Bottom Pcb

The main difference is just the much lower input voltage, weight, and reduced maximum output power of 350mW, which is plenty for 1S builds.

For simplicity and weight saving, there’s no metal bar securing the camera connector and antenna U.FL connectors, it’s just glued in place. It still has the same 25.5×25.5mm mounting.

Walksnail Avatar 1s Mini Vtx Nano Cam Cable Connector Glue

Image Quality

Here’s the testing footage.

In case you can’t watch the video, here are some screenshots.

Although the specs claim the Nano Camera and Standard size camera having the same 170° FOV, in my testing I found the standard size camera has slightly wider FOV. Image detail and sharpness appears to be quite similar.

Walksnail Avatar Vtx Cam Full Size 1s Mini Nano Image Comparison Day 1080p

The way they handle high light and shadow also appears identical.

Walksnail Avatar Vtx Cam Full Size 1s Mini Nano Image Comparison Day High Light Sun

Both cameras are not ideal for low light flying as you can see in the night testing pretty much like the DJI OG camera. Both Avatar cameras seem to have dynamic exposure that changes with lighting level. You can see the exposure increases in steps as I move the camera down facing the ground (towards the darker area). But the initial threshold seems a bit too low in my opinion, exposure didn’t change until the frame gets really dark (probably too dark to fly).

The DJI OG camera doesn’t have dynamic exposure, it’s constant the whole time.

At some situations the DJI is doing better than the Avatar, and others the Avatar’s are better. But if Avatar fix the initial threshold I think it will perform slightly better than DJI in low light.

Walksnail Avatar Dji Vtx Cam 1s Mini Nano Image Comparison Night Low Light 2 Walksnail Avatar Dji Vtx Cam 1s Mini Nano Image Comparison Night Low Light 1 Walksnail Avatar Dji Vtx Cam 1s Mini Nano Image Comparison Night Low Light 3 Here’s an indoor flight using the Mini VTX and Nano cam on the BetaFPV Meteor75:

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Matt 2nd March 2023 - 2:49 am

I can’t seem to build a 2s for the life of me. I have tried 3 different aio boards, and none of the 5v bec provide enough amps to power the vtx. Anyone know what the max amp draw is?

Created by Stas 17th May 2023 - 8:48 am
It seems you need for proper working around 1.5 A BEC for VTX only.

Salukikev 7th February 2023 - 2:47 am

Surprised you didn’t sort out current draw (or did I miss it?) lots of builds are hoping to use fc 5v out which typically is only good for an amp or two. So, pretty important spec.

Oscar 7th February 2023 - 3:44 pm

This is the old version (V1), they already release the V2 and I will test it soon.

Ricky 30th November 2022 - 11:45 pm

Hi Oscar do you know the difference between the old and new version of the 1S avatar kit?

Oscar 1st December 2022 - 12:01 pm

Mostly just lighter, few grams lighter. But most shops are still selling the old version until old stock runs out. You should check which version you are getting before placing your order.

Ventilo 1st November 2022 - 10:54 am

Thanks for this review, can you please confirm the cable length? On Caddx’s website the length is listed as “45mm/90mm”, which is rather unclear… and on your pictures it seems very short indeed…

Oscar 1st November 2022 - 11:00 am

It says 90mm long cable in the specs, but mine is only about 35mm long. I didn’t get the original mini VTX and nano, mine is from the Meteor75 BNF, so BetaFPV might have changed the cable to a shorter one? I am not entirely sure.

Ventilo 5th November 2022 - 2:06 pm

All right, I asked their support, the standard mini 1S kit comes with a 55mm long coaxial… That’s neither 90 nor 45 by the way :) So you’re probably right that BetaFPV changed the cable on the Meteor75