Runcam Split 2 Camera Review and Testing

by Oscar

The Runcam Split 2 has addressed many minor issues from the first version, which has been extremely popular. In this review we will take a closer look at the improvements and features.

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For those who aren’t familiar with this product, basically the Split is a compact HD action camera that is capable of capturing HD footage (1080p@60fps), while it can be used as a low latency FPV camera for flying. It can be stacked on top of your FC, which makes your build cleaner, lighter, and cheaper by merging 2 cameras into 1.

The Split V2 is available at BanggoodGetFPV and Amazon.

Have a look at our guide on how to choose a great HD action camera for quadcoptersHere is my review of the Split V1.

Update: Runcam has released a smaller version – the Split Mini.

Improvements Summary

  • Takes 5V to 17V input voltage with onboard voltage regulator – Runcam confirmed that they have taken into account of the possible voltage spikes in a mini quad, so it should be relatively safe to use with 4S lipo
  • USB reverse current” bug fixed
  • More reliable SD card slot
  • JST connector replaced by solder pads (video signal, power, TX & RX serial port)
  • Comes with GoPro lens by default (RC25G)
  • WiFi module redesigned for more user friendly connection
  • Stronger lens/board ribbon cable connector
  • Better cooling
  • New microphone

The camera with the main board and heatsink weights 25.4g.

What I reviewed here is just a prototype of the Split V2 camera, so there could still be some minor changes to it, but we can only expect it to get even better.

If you cannot wait you can still purchase the V1 here:

Runcam Split V1 - the older version

Runcam Split V1 – the older version

Runcam Split V2 - the new version

Runcam Split V2 – the new version

A closer look at these changes

The biggest improvement of the Split V2 in my opinion is the wide input voltage support of up to 17V. This means you can now power the Split directly by a 2S, 3S or even 4S LiPo battery, no more worrying about additional BEC and current rating. With the built-in voltage regulator circuit it also fixed the “reverse current” bug that might happen when connecting the power and USB cable at the same time.

At first glance, I noticed a piece of metal that is added on top of the Split V2 camera. I was told this is for two purposes:

  • Holds the SD card in place
  • Acts as a heat-sink for better cooling

The Split V2 camera has gone back to the traditional “push ejection” SD card slot. To remove the SD card you just need to lift the piece of metal that is preventing the card from flying away, and push the SD card to eject it. This is way more reliable than the previous design IMO.

This piece of metal is held in place by the 4 standoff’s, and it is removable. Runcam is also considering adding damping (possibly O-rings) to the four screws and hoping it can reduce the impacts to the board in crashes.

I am very excited to see that they’ve changed the WiFi module design, and use a Mini HDMI connector so you can plug the BT module in horizontally. Previously it was nearly impossible to use the WiFi module after you install the Split inside the frame, as the WiFi module has to be plugged in vertically.

I personally don’t think the WiFi module is actually that useful, apart from allowing users to preview what is being filmed. All the settings can be changed in the OSD anyway (and hopefully through FC/Betaflight too in the near future), so I asked them if they could maybe remove it and make it cheaper and smaller.

Not everyone is going to like the new solder pads, but I prefer solder pads over JST connectors. Whoever is using the Split must also build their own quad and has access to a soldering iron right? Soldered connection is much stronger and more reliable, and you can connect as many wires as you need.

Lastly, we were told that every Runcam Split V2 will come with the GoPro lens (RC25G) as the stock lens, which is a good move IMO because I prefer the colour and image much more than the original lens. (check out my comparison testing in my Split V1 review)

Some close-up’s of the PCB:


Same as the V1.


So far we have gone through all the hardware changes, the next part of our review will be looking at the image quality. I will be comparing the Split V1 and the Split v2, stay tuned.

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terry t zelk 26th September 2018 - 12:56 pm

these runcam 2 splits are complete garbage!!! i’ve been through two of them in 4 months and i’m just a beginner flyer, and don’t fly too often. these things didn’t make a dozen flights before they went dead. the screen gets full of vertical colored bars then dies. i’ve not even had any hard crashes with these things, they just quit for no reason. they aren’t worth anywhere near what they cost because they are horrible quality. i wouldn’t recommend these to even my worst enemy, they are such crap. i didn’t keep the emails on my puter when i ordered them so now i can’t get reimbursed for them or get replacements.
there are good cams on the market, but this isn’t one of them, buyer beware!!!!!

Oran 28th December 2017 - 9:43 am

Noise VDO problem as throttle increase. I use Split 2 PCB with Split 1 camera. How to remove the noise?

mah 7th April 2018 - 4:02 am

I have two of these damaged things I can say is very awful. Because they are not designed for this board, there is a safe input for voltage.
As soon as you connect the voltage to the opposite, the board will fire. This is very stupid.
I dropped around $ 150 rubbish bin. Within two months.

Dashz 25th November 2017 - 11:54 pm

Will you make the 2nd review of it and the latency test?

Oscar 26th November 2017 - 12:41 am

latency is the same.

Robert 25th December 2017 - 3:49 pm

Which is? Is it that hard to put numbers here?

Oscar 3rd January 2018 - 1:27 pm

Around 50ms. Is it that hard to google “Runcam Split Latency”?

Alpha Tango FPV 24th November 2017 - 6:06 pm

Hello !
Did you manage to find the camera setup, like brightness, contrast, etc ?
I did not find the similar menu that we have on other Runcams.
Therefore I can’t adapt the seting to the ambiant light :(

Ideas ?

Eduardo 19th November 2017 - 7:38 pm

Please, did you test the V1 camera with the V2 PCB?
I have a broken V1 PCB, the price of the V1 and V2 PCB is the same in Runcam store!
I’d like to buy the v2 board!
Or If I buy an entire V2, I’d like to know if I’ll have the V1 camera as replacement if I break it!

Oscar 28th November 2017 - 1:49 pm

yes image look identical from what i can see, i just haven’t had time to upload the footage yet. i don’t even know if there is a point of doing it.

Joshua Carson 22nd December 2017 - 10:13 am

I have tested the V1 camera with the V2 PCB and xan confirm it works. I broke my PCB and contacted RunCam support for the V2 PCB.

doc 11th November 2017 - 3:31 am

Relatively , mmm? I plan on using my v2 just as HD cam and that is how Runcam should market this cam with a good mount that will will work 99% of the frames out there. 60g less than a session?

Atlas 8th November 2017 - 2:14 am

Hi Oscar,
Can you please test the split 2 PCB on split 1?
The control chip on my split 1PCB is loose and it needs applying pressure on it to make it work, otherwise it gives unauthorised error.
If the split 2 PCB works on split 1 then I just need to change the PCB instead of the entire camera. I know many people have this problem as well.

Oscar 12th November 2017 - 4:31 pm

can you buy the PCB separately? I will test this soon.

Atlas 13th November 2017 - 12:30 pm

Thanks for your reply, mate. I am looking forward to your test result.
I have not seen anyone selling the PCB by itself. I guess Runcam wants people to buy the whole camera instead of the PCB itself. I notices that the PCB problem happens to quite a lot of people. Runcam has issued a software fix and offered replacement PCB if the customer can provide detail information of the problem. I welcome the replacement offer but it means I won’t have a PCB for at least a month and the issue may occur again on the replacement. I think the split 2 PCB is a better idea.
I am currently using the software fix but it is far from perfect. I have had a few incident when the camera turns off after a minor shock (when the quad hit something midair), and it forces me to failsafe because I don’t have camera feed.
Some people suggest that the controller chip is loosen over time due to vibration on the quad. They have proven the idea by heating up the chip with heat gun to fix the solder joints. I think this is really the issue and I think the software fix is to allow the camera to operate with poor connectivity, which is problematic if you think about it.

Damage 18th November 2017 - 4:02 am

I too am curious if the Split 2’s PCB will work with the split1’s camera & cable. I have a split 1 camera glued into the fuse of a plane with no easy way to remove it or the cable attached to it. I would like to gain the benefits of the split2 without having to rip apart the plane. The easiest thing would be to swap out the split1 PCB for the Split 2 if that is viable.

Atlas 25th November 2017 - 12:15 am

So Runcam has listed the PCB for sales on their website

Bullfrog 25th October 2017 - 6:57 am

Excellent work on the review as always, thanks! Can’t wait for the second one with latency as this will make or break the camera for me.

Keep up the good work.

Dave D 14th October 2017 - 10:57 am

Hey Oscar I’m with you, if people aren’t currently running some filtering AND watching where they’re running their esc signal and power wire (ie:get them as faraway as possible from the board and video signal, which is not easy) are asking for glitches and problems. Latency yes I can deff see that could be a hindrance for racers where this product seams a natural fit for, but seeing as I don’t race, my vote goes for getting more recording datarate. Plus getting more robust replacements for those fragile power/mode buttons, as I did have to get mine replaced cause one of the buttons stopped working. Oh yeah people if you have problems with your products and it’s under warranty TELL runcam they just sent me a new board totally free!!!

JB 13th October 2017 - 1:08 pm

Hi oscar was just about to buy the v1 but may as well wait. So does it display voltage since I’m not running telemetry ? Also how cool would it be to make a micro 2 axis gimbal for this lightweight camera.

Oscar 19th October 2017 - 3:37 pm

It doesn’t have OSD built-in, but most FC these days have Betaflight OSD on them so that shouldn’t be an issue :)

Kevin 21st October 2017 - 9:52 pm

OSD is in the works…

Had a reply from Runcam saying they’re working on an OSD similar to the max7456 system.

Oscar 24th October 2017 - 2:43 pm

Thanks for the update Kevin :)

Geoff 13th October 2017 - 6:52 am

Thanks Oscar for your beta review and look forward to catching your full review.
Could you provide these dimensions? Yes, these could change. (It’s a prototype :-)


Christopher 13th October 2017 - 5:42 am

I hope there is a basic in flight OSD with ability to show pilots call sign in the FPV feed/ This was not an option in V1 and was a major let down.

Oscar 19th October 2017 - 3:29 pm

OSD has been a request before the V1 even came out. I think the hold up is due to the limited space on the board. Hopefully they can come up with OSD in the future.

Scott McClarin 5th October 2017 - 5:05 pm

THIS! is what I have been waiting for! now to see when it can be purchased online? who will get it first?

Scott McClarin 17th October 2017 - 5:24 pm

Just preordered a Split V2 direct from Runcam; Expected release date is 18th Oct 2017 you can preorder direct from RunCam here:

Pablo 4th October 2017 - 2:47 pm

My runcam split v1 stop working (the red led is blinking all the time and the camera don’t power up…
Anyone knows when the v2 its going to be available?

John Solano 4th October 2017 - 5:06 am

Excelente, estoy a la espera de la split v2

Banner 2nd October 2017 - 2:57 pm

A lot of people dont like the latency on the split 1, if runcam can half it or make it the same as the swift 2 then ill definitely be buying it. I notice a big difference latency wise when i use the split compared to the swift 2. Wonder if they fixed the jello issues too, have had 2 splits with gopro lens and both had crazy jello till i changed the lens, after that the jello died down a bit

TODD LANDEN 1st October 2017 - 2:57 am



Damian Stocks 6th November 2017 - 9:23 am

How do you manage your camera power supply? At what point does it cut out?

Daniele Carradore 30th September 2017 - 3:11 pm

good job. I just bought another V1 because the previous one has problems. we hope well

jo 30th September 2017 - 6:32 am

I agree with Scott and Lamaule. Many people had severe issues with the Split so far. I bought three from different dealers and different charges and already received three(!) more for replacement. None of all these worked correctly for more then 5 flights. 2 or 3 I had to reset or reflash already three times each. I finally stopped any setups with split and saved my time and motivation for less frustrating projects.
If you call this “minor issues” it’s a slap in the face of money people and I start to doubt that your reviews are still neutral and objective. It would be a pity if not.

jo 30th September 2017 - 6:51 am

“money people” is a nice mistake, of course “many people”…

Oscar 5th October 2017 - 2:27 pm

I used 2 of the Split V1 and they all worked as expected. So you think my reviews are not objective because I didn’t have the issues that you had? That’s an “objective” comment? :D
It’s not going to help you get your money back by moaning on my blog you know. Talk to Runcam! :)

Peter 30th September 2017 - 12:29 am

When does part 2 of review come out? Also, when will Split V2 be available for purchase?

Oscar 5th October 2017 - 2:25 pm

Should be early next week :)
I would say probably in Nov? Definite before Xmas.

roy 29th September 2017 - 11:38 pm

Have they fixed “SD CARD FULL”!

Oscar 5th October 2017 - 2:24 pm

I believe this is fixed in the latest firmware release?

Kevin 21st October 2017 - 10:02 pm

From my experiance, some SD cards that function well wih PC’s, don’t work well with other devices. Had this issue with several Samsung SD’s in Samsung cell phone no less. Swapping to another brand of the same spec’s solved the issue. Not even sure why this would be an issue with what should be compatable products.

Azhar 29th September 2017 - 8:15 am

Bluetooth module uses mini HDMI? Looks like a micro HDMI port.
Interesting choice, does it mean we can also use the bluetooth module on any other micro hdmi device (like a gopro and get live feed?

Or we can plug in a micro HDMI cable to a screen?

Oscar 5th October 2017 - 2:22 pm

It’s the Wifi module not BT module :)
And no, it doesn’t do live feed :) it’s purely designed for wifi :)

CS 29th September 2017 - 12:41 am

Is it using the same camera?

Mike 29th September 2017 - 12:26 am

Where’s the osd

nub 29th September 2017 - 12:03 am

Can the v2 output 16:9 FPV feed without letterboxing?
And they should have a trade in program for the poor saps, like me who beta tested their super buggy v1.

Giorgio 30th September 2017 - 12:48 pm

+1 !

Ghostface 9th December 2017 - 10:03 am

16:9 is still letterboxed on my split 2 using skyzone sky02s

Mike 28th September 2017 - 10:25 pm

I wonder if you could just purchase the new PCB and use the old camera.

LUCIANO 5th October 2017 - 2:10 am


Oscar 5th October 2017 - 2:15 pm

This is something I asked, I haven’t got a reply yet.

Scott Durham 28th September 2017 - 9:56 pm

Please give Runcam feedback to redesign the fpv feed so that it is live all the time it is powered. I have had multiple frozen screens with the fpv feed causing multiple crashes. I now only use it as a stand alone recording camera because I can’t trust it. Thanks for the review Oscar!

Lamaule 29th September 2017 - 6:01 pm

Agreed, I have had the same issue. I’m frustrated with runcam, this isn’t a new unit this is just addressing the flaws with the old one – which were substantial! Runcam should really recall the v1 and issue customers with an upgrade to the one that actually works!!!

Scott Durham 30th September 2017 - 2:26 am

I agree! I love the idea of the Runcam Split but with the issues it has it is not safe to use! An upgraded safe version would be a show of awesome customer support!

Danny D 28th September 2017 - 9:07 pm

I was hoping this version would add a voltage and timer OSD to the non-recorded feed.

Ed Scott 28th September 2017 - 8:54 pm

I don’t think 17volt is enough to handle the voltage spikes of some ESC can throw on breaking, I could be wrong but the early foxeer arrow v1 only had 20 volts or so and would burn up. Mayeb they added some spike filtering? Please find out before I upgrade. Also no OSD

nub 28th September 2017 - 11:35 pm

i’d agree, expect voltage spikes of around 22V-24V on ESC’s that are considered to be low noise, seen some ESC’s giving voltage spikes of 27V+ lol

Oscar 5th October 2017 - 2:17 pm

I don’t know about you guys… but I would never connect my VTX/Camera directly to LiPo without having additional LC filter and/or voltage regulator in between :) usually i only power my FPV system with regulated 12V :)

Oscar 5th October 2017 - 2:13 pm

Yes they confirm there is voltage spike filtering in place.

Ed Scott 28th September 2017 - 8:40 pm

Still no OSD?

Stacey Abshire 28th September 2017 - 7:55 pm

Any word on the release date?

Jerome Demers 28th September 2017 - 7:40 pm

if the Betaflight OSD integration come to life, do you think it will be compatible with simple software update or it will need new hardware aka V3?

Oscar 5th October 2017 - 2:09 pm

I believe it would be possible through serial port (UART) which is already available on the Split. But it’s still a very early stage for this feature and things could change.

Danny 28th September 2017 - 6:13 pm

17v wont cut it for 4s

Oscar 5th October 2017 - 2:07 pm

As I asked Runcam about this, they confirmed the Split V2 will have built-in filters to protect the camera from voltage spikes.

Blake 28th September 2017 - 5:55 pm

Nice! Thank you for the article Oscar! When you post the performance review, please let us know if there’s still horizontal bars in the upper right corner of the HD recording. :)

Chris 28th September 2017 - 5:13 pm

Yeah can I do a test and review on the runcam split v2

Oscar 5th October 2017 - 2:04 pm

ask Runcam :)

Marek 28th September 2017 - 4:58 pm

The reinforced ribbon cable will fit into Split V1? Also, can i just buy PCB and ribbon cable and connect it to V1 lens? That’s so awesome that they improved Split. Maybe it will be good this time :D

Ey0 28th September 2017 - 4:48 pm

any thoughts about latency in this version? would it be better?

Oscar 5th October 2017 - 2:03 pm

I will get it tested in the next couple of days, sorry I’ve been a bit too busy recently :)

Faawks 8th October 2017 - 2:48 pm

I’m also been interested in the latency, it will either make or break this camera, I simply can’t fly right with a lot of latency.

Thanks for your review, I’ll keep my eyes on this one.

Kevin 28th September 2017 - 4:33 pm

So I assume the latency is the same as v1?

nub 28th September 2017 - 4:09 pm

hmmm needs more headroom on the input voltage for a 4S IMHO

Oscar 5th October 2017 - 1:58 pm

Runcam came back to me about this saying they have taken into account of the possible voltage spikes in a mini quad, so it should be relatively safe to use with 4S lipo.