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?

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

Specification

Walksnail Avatar 1s Mini Vtx Nano Cam Ribbon Cable Side

AVATAR HD NANO CAMERA

  • 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

AVATAR MINI 1S VTX MODULE

  • 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

WALKSNAIL AVATAR VTX ANTENNA

  • 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 3Here’s an indoor flight using the Mini VTX and Nano cam on the BetaFPV Meteor75:

Update (9th Dec 2022) – V2 Release

Walksnail Avatar 1s Mini Vtx V2 Size Compare

Here’s the specs comparison of the new version of the Avatar Mini 1S VTX V1 and V2.

V1 V2
Weight: 12g (VTX+Camera+cam cable+FC cable)
Dimensions: 33x33x6.5mm
25.5×25.5mm mounting
Cam cable length: 90mm
Input voltage 3.1V-5V
8GB Storage for recording
Up to 350mW Output Power
1080p/60FPS or 720p/120FPS switchable
4:3 / 16:9 switchable
170° FOV
Weight: 10.3g (VTX+Camera+cam cable+FC cable)
Dimensions: 30x30x6.5mm
Cam cable length: 55mm
FC cable come soldered to VTX
The rest of the specs identical

Walksnail made it smaller (30x30mm size), and a couple of grams lighter (whole setup is only 10.24g). They also removed the plug for the FC cable, wires are now directly soldered to the VTX. The rest of the specs are the same as before.

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5 comments

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?

Reply
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.

Reply
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…

Reply
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.

Reply
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

Reply