Testing Nano FPV Cameras from Runcam, Caddx and Foxeer

by Oscar
Published: Last Updated on

I tested a bunch of nano FPV cameras, including: Caddx Ant, EOS2, Runcam Nano 4, Phoenix 2 Nano, Foxeer Predator, Razor, Toothless 2 Nano. Let’s compare their specs image quality to find out which is the best Nano FPV camera.

New to FPV? Check out my FPV Camera buyer’s guide.

Nano FPV cameras are really small with a width of 14mm. They might not have the same image quality as micro and full size FPV cameras due to the smaller imaging sensor and lens, but they are extremely popular in micro quads, tiny whoops and ultra-light builds where space and weight are crucial.

Every FPV camera has different latency, and it’s an important consideration when you buy one. See my testing of FPV camera latency.

Nano FPV Cameras testing


2021 Testing Nano FPV Cameras

Caddx Ant

Shops:

Specs:

  • Price: $15
  • Weight: 2g
  • Input Voltage: 3.7V to 18V (5V or 1S to 4S LiPo)

The Ant is probably my favourite in this round of testing – image quality is decent, pretty good WDR and color looks natural. It’s the cheapest and lightest camera too, what’s not to like?


Runcam Nano 4

Shops: https://amzn.to/3c1DCSK

Specs:

  • Price: $23
  • Weight: 2.9g
  • Input Voltage: 3.3V to 5.5V

Not much to say about the Runcam Nano 4, I think the Caddx Ant wins in almost all areas.


Runcam Phoenix 2 Nano

Shops:

Specs:

  • Price: $30
  • Weight: 5g
  • Input Voltage: 5V to 36V (5V or 2S to 6S LiPo)
  • Camera Settings Adjustable

Basically a miniature version of the Phoenix 2 (with smaller lens), image quality looks kind of similar to the micro version, and you can adjust camera settings too. It’s probably has the best sharpness and image detail in the list. The only thing that needs adjusting is white balance, it looks kind of green and cold on default settings.


Foxeer Predator Nano

Shops:

Specs:

  • Price: $36.9
  • Weight: 4.8g
  • Input Voltage: 4V – 20V (2S – 4S)
  • Camera Settings Adjustable

One of the most expensive cameras in this round-up. There are some desirable quality in the Foxeer Predator Nano. It supports the wide voltage range, you can power it directly from 2S up to 4S, and dynamic range is pretty good. Out of the box I find the image over-saturated with some undesirable blue tint, to the point it almost feels a bit “cartoonish”, but from online feedback it seems some people actually prefer this look.


Foxeer Razor Nano

Shops: https://oscarliang.com/product-l1jz

Specs:

  • Price: $20
  • Weight: 3.9g
  • Input Voltage: 4.5V to 7V

The image of the Foxeer Razor Nano almost looks like the Runcam Nano 4 with slightly lower sharpness, very similar in terms of image quality.


Foxeer Toothless 2 Nano

Shops:

Specs:

  • Price: $36
  • Weight: 3.1g
  • Input Voltage: 3.8V to 16V
  • Camera Settings Adjustable

Stunning image quality – probably the best in this group. But it’s not the fastest camera if you care about latency: https://oscarliang.com/fpv-camera-latency/


Image Quality Testing

Judge for yourself.

Here’s the side-by-side comparison video of the 6 nano FPV cameras:

Here are some screenshots of the test:


2019 Testing of Nano FPV Cameras

the best nano fpv camera - runcam nano 2, runcam racer nano, foxeer predator nano, caddx kangaroo, eos2

lens comparison - runcam nano 2, runcam racer nano, foxeer predator nano, caddx kangaroo, eos2


Runcam Nano 2

Shops:

Specs:

  • Price: $19.9
  • Weight: 3.2g
  • Input Voltage: 3V – 5.5V (1S)
  • Camera Settings Fixed

The Runcam Nano 2 is one of the best budget cameras, that’s why you see it on many BNF models. I think some people might even consider this their “go-to” camera for the more consistent image quality and wide FOV.


Runcam Racer Nano

Shops:

Specs:

  • Price: $35
  • Weight: 3.5g
  • Input Voltage: 3.3V – 5.5V (1S)
  • Camera Settings Adjustable

It has the most natural looking image, great wide dynamic range and low light handling. The only downside however, is the over-sharpened image with stock settings, the good news is you have full control on camera settings. I’d probably turn down sharpness a fair bit to try reducing digital artifacts. And also increase contrast to bring out the detail more.


Caddx EOS2

Shops:

Specs:

  • Price: $16
  • Weight: 3.5g
  • Input Voltage: 3.3V – 6V
  • Camera Settings Fixed

The EOS2 is an “okay” camera, but I’d rather spend $4 more and get the Runcam Nano 2. It’s one of the most cost effective cameras and therefore it’s being used in many cheap BNF models.


Caddx Kangaroo

Shops:

Specs:

  • Price: $28
  • Weight: 3.5g
  • Input Voltage: 3.3V – 5.5V
  • Camera Settings Adjustable

The Caddx Kangaroo seems to perform well in low light, but day light performance is mediocre unfortunately, not sure if the relatively smaller lens has anything to do with that.


Image Testing

Here is the test footage:

I also tested the Runcam Phoenix Oscar Edition as a reference, to give you an idea how these nano cameras compared to a good micro camera.

Day Test

Although all these FPV cameras have CMOS sensor, the Caddx EOS2 and Runcam Nano 2 look a bit more like the CCD cameras with that classic warmer tone.

Not only these two cameras seem to have the same lens, the Nano 2 and EOS2 actually produce very similar image quality as well. But the Nano 2 edges out in performance with a wider FOV (field of view), brighter image, more consistent color and better WDR.

WDR Test under shadow

Many BNF micro quads are shipped with the EOS2, so I am quite familiar with this camera, I guess Caddx just sells a ton of these to manufacturers cheaply. I am not a fan of this camera because of its tendency to changes color whenever it’s struggling with lighting, and the image can suddenly become very red and orange sometimes.

The Foxeer Predator Nano still has this annoying blue hue just like the older versions, and the image color is a bit exaggerated. However, dynamic range and low light performance is pretty good. And sharpness is also great without having too much digital artifacts.

Testing shadow detail facing the sun

The default sharpness level in the Runcam Racer Nano is way too high as you can see in the testing, there are lots of digital artifacts when looking at the tree branches. But I really like the image color of this camera, probably the most natural of all. Dynamic range and low light are also excellent.

Similar to the Racer Nano, the Caddx Kangaroo also suffers from digital artifacts. Not only that, the color is very dull, and the dynamic range is just not good at all. Shadow detail under the sun is nearly non-existent, all you can see is black. However it works surprisingly well in low light.

Here are some shots from the low light testing at sunset.

Edit History

  • Oct 2019 – Tested Runcam Racer nano, Nano 2, Caddx EOS2, Kangaroo
  • May 2021 – Shortened URL, new cameras tested: Runcam Nano 4, Phoenix 2 Nano, Caddx Ant, Foxeer Predator, Razor and Toothless 2 Nano

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11 comments

Duliyan 15th June 2021 - 5:21 am

Thank you for update Oscar! Though Foxeer Toothless comes with standard and starlight lenses, which one did you have on test?

Reply
Oscar 15th June 2021 - 10:31 am

It’s the 1.8mm starlight lens i got.

Reply
Phill 4th January 2020 - 9:37 am

I’m a bit disappointed with the Runcam nano 2 being fixed settings, it’s a pretty good picture in daylight but it’s awful in darkness with artificial lighting, seems to be the only cam that is fixed although it is lighter than the rest from what I can see.

Reply
Justin Scholtemeyer 26th November 2019 - 8:52 pm

What lense did you use for your Runcam Nano 2? 1.8 or 2.1?

Reply
Oscar 1st December 2019 - 4:34 pm

2.1mm

Reply
Islandhog 19th November 2019 - 6:53 am

My take on this is the Phoenix is nice, and will be my next micro. As for the nano’s I’d only consider the Racer and Predator. I’m leaning towards the Predator, voltage range makes it more versatile and I’m sure the picture will be nice after adjusting the settings.

Reply
Alain Assaf 14th October 2019 - 6:16 am

@Martin
to my knowledge, runcam nano 2 can’t have it’s settings changes.
it has only 3 wires, red black and yellow. no wire for osd.

Reply
Alain Assaf 14th October 2019 - 6:13 am

I am not a fan of nano runcam. i own v1 and v2 and both are annoying indoors when you suddenly face the sun.
it takes way too much time for the camera to adjust the camera exposure.

Reply
Martin 11th October 2019 - 6:01 pm

In the initial details you say “Camera Settings Fixed” for the Runcam Nano 2, yet in the summary you say “the good news is you have full control on camera settings”. It would be nice if the summary is correct, because reducing that sharpening would make it much better I think.

Reply
Oscar 15th October 2019 - 5:13 pm

i was referring to the Racer Nano 2 having full control to camera settings

Reply
Dan Brassard 8th October 2019 - 3:00 pm

Which lens focal length did you select for the Runcam Nano 2 and Racer Nano?

Reply