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Pick of the Camera Reviews

(Click the pictures for reviews & links) 


Yi 2 - Best Budget 4K 

Gitup Git2 (My Pick)

Xiaomi Yi

Dazzne P2

DR02 D - Best Budget Dual Cam

Yi Ultra 2.7K
Mobius (also works as a Dashcam)
Polaroid Cube+
Sena Prism Tube

My favourite USB battery power Pack

This is the excellent USB power pack I use when I travel.

2 x 2.1amp outputs. 8400mAh capacity.

Two digit Led display shows battery level


What SD CARD should I buy?

If you want an SD Card for your camera - these are the ones I use and recommend. 

I'd strongly recommend not to buy any SD cards off ebay - I've heard about too many issues with counterfeit cards - often sold on by unwitting resellers. My inbox regularly gets messages from people who bought a £150 camera then cheaped out and bought a £3 memory card on ebay - Then when it doesn't worth they blame the camera! It doesn't make any sense. Good memory is cheaper than it's ever been - see the links above.

A lot of HD cameras will not work properly with cards larger than 32GB (cards over 32GB are usually SDXC rather than the SDHC standard used by 32GB cards. SDXC cards use the ex-FAT system rather than FAT32 - in short they are a different standard). - so don't just buy the biggest card you can afford - read the specs in the manual to see what it accepts.


RECOMMENDED CARDS (for action cams - see dashcams below)

CLASS 10 UHS-1 CARDS (For HD Cameras)


U3 CARD (For 4K cameras)




The SD card in a dashcam is re-written over, more frequently than in other types of cameras. Some manufacturers void their guarantee if an SD card was used in a dashcam. So, no surprise, there are special High Endurance SD cards made just for's some.


VERY IMPORTANT. These links take you to the product, however Amazon have three different ways of selling. There's Amazon Direct - This means that you are only dealing with Amazon themselves, then there's other sellers that use Amazon's facilities - these show as Fulfilled By Amazon and finally there's Market Place sellers that advertise on Amazon, but operate independently.  I strongly recommend that you only use the first...the Amazon Direct - Sold By Amazon option. Even if it appears that you are paying a couple of £/$ more it is more than likely you are comparing the price of a real item against the price of a fake.

To give you an idea of the extent of the fake goods problem. In a 2016 survey by Apple - 90% of the 'Apple' chargers sold through Amazon - using the other the two methods..which includes the "Fulfilled by Amazon" option -  were found to be counterfeit....90%! 


« CCTV Basics - Wired day & night outdoor camera. | Main | The Big SJ5000+ Action Camera Review »

K1S - The first Front & Rear Hidden 1080p Dash Camera

My full video review for the K1S 2ch HD Car DVR is below. 
If you want to watch my 'Beginners Guide To Dashcams' video - Click here.
The K1S manufacturer website is here, and pdf manuals for the camera can be found here.
For my downloadable sample videos click here  As always, download these files to your machine before viewing them - streaming will make them look worse than youtube.
Note: These files have been manually trimmed for length (and filesize) - therefore the start and end points for the front and rear clips no longer match each other perfectly.
Size Comparison
The control unit is approximately the same thickness as a box of cards but a bit smaller overall (without cables).
Buying the K1S
I’ll add links below as and when I discover additional resellers. 
US link here
UK link here
(US) With GPS:
(US) Without GPS:
UPDATE 02 March 2015
I've received the answers to a few questions I asked the manufacturers.
1) The Car Lamp Open/Closed menu as expected does warn the driver if they are driving in the dark with the headlamps off. It judges this by the exposure.
2) Apparently the battery used is a Standard GoPro size....which is great. Normally I try to avoid dashcams that use batteries, because when the internal battery fails you have to replace the whole camera - in this case you can buy a new battery. Just a reminder -  I can't comment on the long term reliability of any cam after only a month of use.
3) I wasn't sure how the emergency button handled the files. I was concerned that if you saw something you wanted to keep - but the camera started recording the next file before you managed to press the button then you would be protecting the wrong clip. Well it turns out the manufacturer has thought of this. "When this button is pressed, if current recording is less than 1 minute, then current file and the file before this (together 2 files) are locked"
4) Not a question, but I have raised the issue of the need for resellers in China who can export to Europe and also the Speedcam database is no use in the UK until the camera can support additional database formats. Both these things are being explored...but the database issue isn't a simple quick fix.
Both my cars had a K1S installed until a couple of months ago - They were still working 100% at the point I took them out. I removed them so that I could test other cameras, although I was getting a bit sick of the rear wire interfering with the rear hatchback door on both cars - this would work better in a car with a fixed rear window.  It seems that my experience is not the same as that of other people - perhaps the manufacturer changed the product after I purchased my cameras...but if you read through the comments it seems that other people are having lots of reliability issues. You may have noticed that this is no longer on my list of Recommended Cameras - and this is the reason. I was happy with the performance of both of my cameras for 18 months...but perhaps my experience was uncommon. 

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Reader Comments (642)

I'd say that less than 5% of the dashcams I've tested work properly with 64GB cards...and any of the cameras that do, I've reviewed in the last year. I'm not very confident that this camera is 100% compatible with 64GB cards as it was on the market before cards this size became popular.

July 1, 2016 | Registered CommenterTechmoan

Hi, I dont know who I need to speak to but having a few problems with my Koonlung K1S dashcam.

Every so often the unit resets itself for no reason, it turns itself off then you hear a bing noise and it immediately turns itself back on.

When I ask it to lock a video, it sometimes only locks cam 1 or cam 2 (seems random which camera it saves). It does usually lock both videos but this happens every so often.

The rear camera often has a purple layer over the image for no apparent reason.

I love my dashcam and I hope that this just requires a software update to fix.

July 2, 2016 | Unregistered CommenterTony Savage

Using power magic pro with this dash camera and it doesn't seem to work as intended. It doesn't know when to go in to parking mode and when to turn on for driving. Any suggestions? Have I picked the wrong hardwiring equipment for this particular dash cam?

Many thanks

July 15, 2016 | Unregistered CommenterChris

We are dealers of Latest CCTV Cameras and our products service oriented, sustainability. Main use of CCTV is in powerful continuous surveillance system. Today’s modern CCTV comes along with Digital video Recorders [DVRs], which provide recording utility of particular event.

July 20, 2016 | Unregistered Commenteressa

In this internet era, latest of form of CCTV surveillance is decentralized IP based Latest CCTV Camerasattached with high powered mega pixels sensors support recording directly to network attached storage.

July 20, 2016 | Unregistered Commenteressa

I find that if you format the sd card once every month it works much better. Or if it stops and starts on its own reformat the card. Often you will see a message saying disk fragmentation, which to me means reformat the memory card. Unless there is some event you want to save there is no reason NOT to reformat.

July 28, 2016 | Unregistered CommenterMing

Is it possible to use a license plate camera with this unit if so which modle.

July 31, 2016 | Unregistered CommenterB

I saw your videos and it was very interesting and I was wondering if this dash cam K1S comes wireless and if so can u recommended the best wireless dash cam with WiFi and does the WiFi work properly

August 1, 2016 | Unregistered CommenterMario

This system has turn out to be a hassle to deal with. It worked fine for a bit but im beginning to consider removing it. They have some useless lane departure and "lamp open" and driver fatigue (ahem countdown timer) modes available which only serve to randomly beep at me for no reason until I turned them all off. The sensitivity setting is nonsense, cannot tell which way is more or less sensitive to impact nor do the instructions clarify. The audio quality is poor, very low level and it distorts easily with the radio on. Once it went into a mute mode for no reason. Now my audio has been recording at an insanely low level. The controller sometimes mis-labels the front and rear feeds on the SD card. When the card gets full, it goes nuts making many small files with gaps in between. Front adhesive pad came unglued from THE CAMERA (not the windshield, because I cleaned the surfaces before mounting) and rear came off the plastic trim even though it does not receive direct sun. When stationary, the compass spins in circles while you are stopped and it says I am travelling 120MPH. I've been installing for years, all wiring is hidden and I even included a slack loop near the controller and clamped the cables so they would not move/vibrate. This product was a good concept, but it is junk. They should have spent more money on the connectors than trying to add Mercedes S-Class features to a digital camera.

August 8, 2016 | Unregistered CommenterCro Magnon

For the Dutch, Belgian and German: The Dutch website is now selling this camera too for a fair 249 euro. It can be found right here:

English page:

For your info: this site is no longer active, the shop more than probably the same.

September 25, 2016 | Unregistered Commenterµluc

After seeing this I bought one, it had intermittent faults so sent it back for replacement, but the supplier was out of stock so had a refund.
I got a new one from another supplier and I now find this is also with intermittent faults.

Anyone else have this problem of stopping recording while driving?

I got an update firmware as I wanted MPH not Km/h hoping this would fix it but it was just the same so I am thinking it must be a fault with the recorder.
I have email the maker but as China is on holiday till end of week I ask here.

October 7, 2016 | Unregistered CommenterChaz

Initially, excellent; ultimately, dangerous - DON'T BUY. Heavily influenced by this excellent video review & after much installation work, it was fine for a few weeks, though Chinese English instructions unhelpful. Then unable to programme it (date kept reverting to initial date/time etc). Then intermittent complete failure, so some journeys unrecorded; next day working again - totally unreliable and at random, in spite of removing the battery to reboot etc. Finally one day, with the recorder dead it became hot, then hotter, until finally, unnerved by recent exploding Samsung lithium phone batteries, I disconnected it and put it at the bottom of the garden! Then the battle for a refund. Initially I asked for a replacement but unnerved by the lengthy initial mailing time and an equally lengthy return time & high cost, I asked for a refund. A lengthy e-mail exchange (in Chinese English) before they agreed to refund the not inconsiderable cost but not the £18.55 return postage so the experience leaves me poorer in time and money. Now have a NextBase 412GW from Halfords; one camera but better video & it's staying cool. Your review video requires an addendum. Beware of buying directly from China.

October 22, 2016 | Unregistered CommenterSimon

@Simon I have placed many posts on this site about the problems with the K1S including removal of the original battery which " Sulphated " IE , got hot , melted the casing and was about to explode ! I am still having issues with getting the camera to work properly as is my brother , who has given up and is trying to get a refund . The website Koonlung had for software updates is gone and they have not responded to my Emails , the product is SHIT and so is the Company , Buyer BEWARE !!!!!!!!!!!!

October 22, 2016 | Unregistered CommenterGreg

Amazing! I am still using the one I bought several years ago and they work fine. I have not had a battery issue or any of the ones I have read here.

I wonder if they had a change in the system or batteries and all these negative posts are from the later models only ? Just a thought.

October 31, 2016 | Unregistered CommenterEU


After talking with the makers I was advised to try a Kingston micro SD card and not the ScanDisk ones I had been using, RESULT all WORKING 100% now.

Now to talk with ScanDisk and find out why their cards will not work when Kingston do..

SO Now Happy with this Cam.

November 1, 2016 | Unregistered CommenterChaz

After putting in a Kinston microSD card it was all working fine
UNTIL the card was full it then kept stopping for 20 sec then restarted.

I have just emailed them to see what comments I get now will update as soon as I hear back.

It's a shame this is happing as I think it's a great system, hope it can be sorted I think just need to update the Firmware.

November 8, 2016 | Unregistered CommenterChaz


Is your memory card a U3 speed class card? Here's an example:

I ask because when I was running a card that was not a U3 speed class card my unit would exhibit the same behaviour. Ever since I changed up to the Lexar, I don't have that problem. Just something to consider.

November 8, 2016 | Unregistered CommenterC. Smith

I have the camera for about 1 month and no issues so far.
FW is R203 / 20160226 HW_V3
Unfortunately my fw uses MPH and I've also noticed that the bitrate is lower than advertised (I guess this is the reason for noisy picture quality).
Does anybody have a newer FW?

November 10, 2016 | Unregistered Commenterjon

I have now put in a Kingston 32GB class 10 U3 and all is well.
Now working as it should.....
I also have made a polarize filter for the lens bought some polarized film of Ebay and made a cap to fit it. now there is less reflection from the screen making a much better image.

I am now happy :)

November 25, 2016 | Unregistered CommenterChaz

Hi All . K1s:R215/201606146948HW_V3 this is the firmware installed in a Replacement DVR unit my brother just got from his K1s supplier , does anyone know where I can go to upgrade mine from K1s:R203/20160226HW_V3 to the aforementioned R215 firmware ?

December 14, 2016 | Unregistered CommenterGreg

Sorry the last comment from Joe got deleted due to a spam filter...I've reposted the link

December 17, 2016 | Registered CommenterTechmoan

That site is not up to date

December 17, 2016 | Unregistered CommenterChaz

The UK eBay link now states the model has been updated for 2017; do you have any information about this updated version?
The eBay page also has a lot of blurb regarding the correct SD card to use; are those users having problems with SD cards using their own cards, or those available as an extra with the dash cams?

I really like the idea of hard wiring front and rear cams yet removing the DVR unit from the vehicle. Are there any other manufacturers developing their own versions?

March 2, 2017 | Unregistered CommenterGray

Gary as far as SD cards go you need a Class 10 but with UHS-3 speed rating for 4K as you are recording two 1080P videos, any other will give problems.
The UHS- speed rating is more important than the class ratings.
I have had no problems with mines since I got the right card.

March 2, 2017 | Unregistered CommenterChaz

Hi, what ever happenned to yoyr fav K1S dual can?
Do you still use it or did it die on you like others mention here?
I really would like a dual cam model.
Looks like the K1S is no longer sold?

March 29, 2017 | Unregistered CommenterNickB

My K!S Died / Stopped Working after about 1.5 years, i got mine when techmoan 1st reviewed it
went to ebay got it there.

koonlung / Koondogs selling junk

they dont reply to e-mails or provide any response
spytech amazon reviews 1 stars
you can read the negative reviews there


just ripped out all the wires,
did not take long, but makes me nervous now not having a dual cam dash cam

yeap techmoan dont have it in his car any longer but says it was working till he removed it

March 29, 2017 | Unregistered CommenterMr Edwards

What Current Draw in StandBy with Motion Detect?__220mA___(screen off)
what is it while Recording 24x7?__220mA_____ (screen off)
What is while its off?__10mA____

doesen't matter if its 5V or not. While charging the left 7V will be anyway heat transfered due the voltage regulator. It takes 66W for a complete day (24h) of recording. Or in other words - with a 50Ah PB Bat you can record 9.4 days (minus the bat chemistry (PB) and - the standby current of the car)

Well - I did. It seems it is not a 'true motion detect' the cameras are always on so the current draw is the same. So - I can confirm most issues. There are two reasons for the crashes:

- This camera is badly designed and will overheat, even not exposed to the sun. I'll add some fans and redesign the outer case. Adding some heat sinks too.

- Rec started/rec stopped bug: As another one wrote somewhere, this happens when the battery dies during recoding. This will result in a corrupt filesystem. The next time you start the car the cam is unable to write down to the sd card which will cause the 'rec started rec stopped' messages. Reformatting helps of course but this is only a workaround.

I'm going to design a special charging circuit this weekend. My Idea is to watch both the car battery voltage and K1s battery voltage. When K1s bat is going to be low soon it will charge when needed.

will keep u tuned.

June 23, 2017 | Unregistered CommenterPhilipp

Philipp the start-stop of the recording was an issue I had until I changed my sd card from class 10U1 to a U3 class 10 as it is recording two 1080 videos plus audio you need the speed. Mine has worked ever since changing with NO issues.

June 23, 2017 | Unregistered CommenterChaz


I have found this is not necessarily true. I am using a Lexar U3 Class 10 64Gb card in my K1s. Whenever the card is full, I get repeated stops and starts in the recording. From paying attention to it, this happens whenever it needs to delete files in order to make space for new files to be written. If I format the card, this goes away until the card is full. That K1S is in my daily commuter car.

We have another K1S in our conversion van, which is used only for long trips or taking the dog to the vet. That camera is running a Lexar U3 Class 10 128Gb card and has the same issue: When the card is full, recording stops when the system needs to delete files to make room for new files. Here again, formatting the card alleviates this problem until the card is full again.

So, this can happen even on quality cards that should otherwise be able to handle the data stream. I suspect it's a problem in the K1S's firmware, and not in the card. It also doesn't have anything to do with heat because this happens when it's cold (below 32 F and above 0 F), moderate (above 32 F and below 70 F), and when it's hot out (anything over 70 F). (I am being generous/safe with the temperature ranges.)

I am fed up with my K1S and will be purchasing an Opia2 with Power+ pack for parking mode. I'll be giving up having a rear-facing camera for now. I need a good parking mode that doesn't depend on a battery because my car was hit-and-run at the Park & Ride in the middle of May, leaving me with around $1000 in damage to pay for. If I'd had a good parking mode, I'd have been able to get the asshole who hit me. Even the transit authority's cameras didn't capture anything (largely because the one with the best view is a license-plate-reader only).

I would never recommend this camera to anyone. I'll be trying to sell mine for very cheap to some unsuspecting person (because I am evil like that).

June 23, 2017 | Unregistered CommenterC. Smith

One I do not use suck a large card No need to two
Have you got the latest firmware?
I was sent my update from makers as I had Km/p and I need MPH

June 23, 2017 | Unregistered CommenterChaz

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