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Techmoan Merchandise at TeeSpring


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%! 


« Watch your back - with the Vico Marcus 5 Dual 1080p Dash-Cam | Main | Vico Marcus 4 Cinemascope Dash-Cam REVIEW »

At last it's the Real SJ4000 WiFi Review

Here at last, is my review of the SJ4000 WiFi review. Whilst there isn't a massive amount of difference between this and my original non-wifi version, somehow I've managed to stretch this out into a half hour video.

If you just want to know about the WiFi function and whether there are any other differences between this and the older models, you'll find your answer in the first few minutes, so no point skipping to the end. 

In this video I also take a minute to explain why you should think twice before ordering the SJ5000 camera that's doing the rounds at the moment.

My video review is below.


Downloadable Samples 

 Click the link above to download my original sample clips recorded with the SJ4000 WiFi Camera.

Now after watching that if you would like to buy one - here are some links

Purchasing Links  Foxoffer(Ebay Store) (My camera was supplied by Foxoffer)

Other ebay sellers (Click your country).

UK   US   AU  DE  AT   BE   CA   CH   ES   FR   IE   IT   NL  

Amazon UK

Amazon US

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Reader Comments (273)

Did you mention that the sj4000 has only a 2 mega pixel sensor? My new sj4000 (Deccember 25/2014) indicates on the back of the box that it has a 12 mega pixel sensor.

Also I have not been able to view video files downloaded to my Samsung Android galaxy ace II. Wondering if anyone has suggestions about that.
(reposted from Youtube review)

December 29, 2014 | Unregistered CommenterRobert McFetridge

The sensor is actually 3MP, I erroneously stated it was 2MP in the video and I've since corrected this in annotations and again in the M10 video. What you are experiencing is a phenomena known as 'Marketing'. The sensor in the SJ4000 is first and foremost there to record video at 1080p. To achieve this it needs to have a resolution of 1920x1080 which is 2MP. However stills are in a 4:3 ratio rather than a 16:9 one so the sensor in the camera is 1920 (wide) by 1620 (tall) so it fills out the top and bottom of the frame.
So how can they claim that the camera takes 12MP images - well it does (in a way) and it's an old trick used by many camera manufacturers....I've even got a Sony camcorder that does this. The 1920x1620 sensor image (which is 3MP) is interpolated up to a higher resolution, in it's simple form each pixel is repeated 4 times. Sometimes software is employed to average out the difference between the pixels but I'd guess that in a cheap camera like the SJ4000, it's just a matter of pixel duplication.
So the sensor is 3MP and the photos can be 12MP (but with the same amount of original information in them as the original 3MP image) and the same horizontal information as a frame of the 1080p video.
So there are two different stats working here - Sensor resolution and Image Resolution. The higher stat is printed on the box because some people are under the mistake belief that more megapixels mean that the image will be better.

The iPhone 6 has an 8MP Sensor in it - I'm always amazed when some people think that the SJ4000 will use a sensor chip with more MP than the latest iPhone.

So it's all about input and output, if I watch an upscaled VHS video on a 4K TV, I'm watching a 4K screen showing a 4K image but the source is a long way from 4K.

As far as your phone question goes, I use a computer for editing, so I have no experience of this.

December 29, 2014 | Registered CommenterTechmoan

Hi. I am a new (in future maybe owner) interested about this camera (SJ 4000). If i buy this camera in shop Foxoffer, will it be original piece? And what about SJ 5000. Is the true, that it exist? Or is it fake?
And which difference is between SJ4000 and SJ 5000?

Thx for respond a nd sorry for my bad English :)

Have a nice day.

December 29, 2014 | Unregistered Commenterkubajs24CZE

DO NOT BUY FROM GEEKBUYING.COM I paid for 2 ..a SJ4000 and5000 on DHL 3-7 bus day delivery over a month ago and have heard every lie and excuse under the sun why it hasnt arrived for the kids Xmas presents. They also put extra charges onto my visa without my approval and wont refund the unapproved charges for trumped up "remote address" They sent me the remote postcode list and there is no number near me on it! I do live in a major city. I have been emailing requesting escalation (they wont pass to a supervisor) and if I speak to chat they say just lie, redirect me and nothing happens. The latest received today is that it has been sent 3 times using 2 different couriers TNT is the latest (between Xmas day and now and 2 returned as they DONT PASS AUSTRALIAN SECURITY (as if there has been time for that) BEWARE!

January 1, 2015 | Unregistered CommenterLiana

Hi! Must say, great review. I have a question. Can a gopro wifi remote be used on sj4000 wifi cam???
Thank you.

January 3, 2015 | Unregistered CommenterMilica

i have just purchased a SJ4000 WIFI and was wondering where the downloaded files are stored on a Android device.
i downloaded some footage to a Samsung Galaxy 3 and cannot see where the file is stored.
can anyone shed some light on this problem.

January 3, 2015 | Unregistered CommenterGoose

Hi, i have just recieved a SJ4000 WIFI. I am disappointed of the quality of camera body. The front plastic panel is not solid, is weak, thin, detache from the body. Camera cannot connect to my IPAD. Ipad established a connection and sees to camera, but SJCAM app cannot connect.
I search on internet but i found no anwers. Any ideas?? Cam has firmware N201410310ZV01.
BTW, in technical specifications says, lens is 170 degree wide, but by me and trigonometry, the lens is only 85 degrees wide, and it is big difference! Has anyone of you 170 degrees lens?

January 3, 2015 | Unregistered CommenterMichal

Re to my last post.
I suppose, i bought a fake camera. Seller wrote to me to download app iSPO CAM. This app works. I saw on youtube, the angle of lens of original cam is much wider, on the fake camera.
I hope, i can return back the fake cam. For others i bought this: It says, it is SJ4000.

January 5, 2015 | Unregistered CommenterMichal

Re Re to my last post.
The fake is

January 5, 2015 | Unregistered CommenterMichal

Can someone confirm this is a copy or genuine?

I noticed the description mentiones DV 200 camera somewhere and the apps for the wifi are called iSmart DV. The rest seems to be in order, besides the fact it doesn't have the wifi logo on it. I ordered it 2 weeks ago, seller has very high rating but couldn't (wouldn't ) provide me real photos of the product.

I've had the original SJ4000 with no wifi but i managed to brake the micro usb port from the motherboard, rendering it useless. Once the new camera arrives I can do a comparison...

January 6, 2015 | Unregistered CommenterMihai


I try to use the newest firmware from sjcam main site: 1204
It is a bug collection :( I don't use OK button because it is the DOWN button, worst battery time, etc. Has got everyone this problem with 1204 firmware?

January 6, 2015 | Unregistered CommenterOccsE

May I simply say what a comfort to find someone who genuinely understands what
they are discussing on the net. You definitely realize how to bring an issue to light and make it important.
More and more people really need to look at this and understand
this side of your story

January 8, 2015 | Unregistered Commenterhashmi

Hi, love the reviews, really helpful, and I've just bought an SJ4000 wifi instead of a gopro white. Less than half the price with all the functionality I need. I generally stay away from cheap versions of the big brands but your review gave me the confidence to give it a go and I'm very pleased I did.

Could you point me in the direction of some good editing software for a windows PC ?


January 8, 2015 | Unregistered CommenterPaul

I just bought the SJ4000 WIFI on Ebay for £69.98 (2nd day delivery) and received it two days ago. Please note that someone at SJCAM has been reading these reviews and most every minor complaint has been fixed. My software version is G20141205V01 with a release date of Dec 4, 2014 and it is much improved over the version in this review.

Just a few deficiencies I've read about here and elsewhere that seem to have been addressed

1-All camera functions are usable when attached to the USB supply so a powered long-term time lapse is possible
2-I think that all settings are changeable using the wireless connection on my Galaxy II
3-It now takes very good time lapse videos without assembling snapshots. I plan on using this for weather videos.

The SJ4000 was a good buy with the noted weaknesses and even better value for money with the software upgrades. It's a really nice piece of kit.

January 10, 2015 | Unregistered CommenterJimB

Just thought id add my tuppence. I brought an SJ4000 around july time from foxoffer but had to wait until December to give it a go on the piste on my skiing trip. I must say it worked ok....for 3 days while the temperature was over freezing, but then when the temperature dropped to below freezing (as qiute often happens on the top of 2600Metre mountain) then it decided to not work at all. In fact I spent nearly 10 minutes before every run trying to get the thing to work but it would not! It kept hanging on the welcome screen. Back in the apartment each day it was working fine, but outside on the next two days it didn't work. To prove it was not the battery I put just the body in the ice making compartment of the fridge and sure enough it didn't work. Now on my return I got in touch with foxoffer who said it was an "unusual" fault although they could send me one out if I returned the faulty one and they would test the replacement in the fridge. Now the point is the camera will work in the fridge because its above freezing, which I know is fine but its the real cold temperatures they should be checking minus 20 which it can easily get down to with the windchill. I have also decided not to return the camera because it would cost a lot to insure it due to loss. My conclusion after all this is if you want to definitely capture those once in a lifetime moments then either buy a gopro- or check your sjcam in the freezer within the 15 day period so as you can send it back free if it doesn't work. Its also made my mind up not to buy the wifi version in future now. Aside from that, I will only use the sj4000 for cycling videos and will look into another type for skiing next year. Just thought id give my experience of the camera as I don't know if anyone else has suffered the same problem as me.

January 12, 2015 | Unregistered CommenterMarcus

Hi I have just been to the sjcam website and they now have the sjcam sj5000 and also sj3000 will you be reviewing these now they are legit?

January 13, 2015 | Unregistered Commentersi290776

In need of serious help, I got the Sj4000 wifi just as you have shown above. I have had numerous issues, I think I have gotten most of the kinks worked out but I can not get it to record sound?? just a buzzing noise at best. Please help, going crazy!

January 13, 2015 | Unregistered CommenterFrustratedJoe

FrustratedJoe: Which is the camera firmware?

January 13, 2015 | Unregistered CommenterOccsE

This is a great camera. I purchased one very similar which has worked great for me. It is called the NSC004 but I think it is pretty similar. It comes with accessories and the waterproof housing. So far it has been reliable and it's great quality, especially for the price I paid.

I found it on ebay -

I would highly recommend this if you are looking for a cam

January 13, 2015 | Unregistered CommenterRichard

Dude you can get it here...

January 15, 2015 | Unregistered CommenterSJ4000 FANATIC

Great video as usual. I actually bought the SJ4000 originally after watching your first video - about 2 weeks later they announced this Wifi version which I am now after selling my SJ4000 and am purchasing this SJ4000 Wifi version.

The main reason is I edit most of my videos with iMovie on either my iPhone or iPad as I have large GB size models. My laptop is ready to give up the good fight and can't really be used for video editing so I do rely on the portable devices.

Anyway, great video, thanks again.

January 15, 2015 | Unregistered CommenterCillian

Thank You Techmoan for you review work. On the basis of this review, I purchased the SJcam 4000 from the FoxOffer ebay store and it was delivered successfully - I did have to pay customs VAT but that was a small percentage of the cheap price so no harm there. Still cheaper than the most basic GoPro.

My main uses are (boring) bicycle 'dashcam' and (fun) actioncam for MTB'ing. I didn't like the included handlebar mounts but nicer aluminium ones were available cheaply from DX. The camera has worked well in the past two months, and the only feedback I have is:- audio is very quiet/mute when in the waterproof case and auto whitebalance produces funny coloured scenes sometimes. Neither are major, but it may be useful for someone else here. I'm looking forward for your review of the SJ5000 to see if it has native 60fps.

January 16, 2015 | Unregistered CommenterAlan

For Techmoan or anyone else who has both normal and wi-fi versions
Can you confirm, the batteries are the same size?

January 19, 2015 | Unregistered CommenterMihai

Hi Techmoan,

Ok so the SJ4000 wifi review you have done is great and I have enjoyed you other reviews too. so i wanted to relay my experience with the sj4000 brought from Keepingame on Ebay

My camera did not work at all when i got it, it would not switch on. When i contacted the seller he told me to remove the front cover and and and stick a small sticky label on the contact for the power switch and once this was done it worked straight away. it seems that the little nipple on the back of the button was not long enough and he is sending me a new front cover so hey ho should be ok. now I suppose as this is a cheap (ish ) camera I was prepared to put up with this, he did say however that he would change but I need it for a skiing holiday so that's that.

In your review you pointed out that the image that the SJ4000 was a bit blue, the first little test video i shot was in quite bright sunshine and was very very blue, and i have to say i was a little disappointed, however i found some information on this attached to a comment on a video on you tube. basically if you tune the white balance to cloudy and exposure to +1/3 then is sorts it and the image looks spot on.

thanks again techmoan hope you health stays on track


January 19, 2015 | Unregistered Commenterbob powles

Great review, quick question though...

Would you lose video quality with the Wifi transfer to an iPhone for example or is it best to transfer them via cable to a computer and over to an iPhone that way?

January 21, 2015 | Unregistered Commentercoolkidirish

It's the same file being transferred irrespective of the method used, so the quality is identical.

January 21, 2015 | Registered CommenterTechmoan

Ahhh excellent, thanks :)

Keep up the greay reviews!

January 21, 2015 | Unregistered Commentercoolkidirish

Hi guys,
can i ask you, what is REAL angle of view of your SJCAM SJ4000?. I mean, it is not 170 degrees.
On my cam, the angle (horizontal) is cca 90°. I measured from the front of the lens.
Can somebody to measure it too, please?
You can take a picture or short movie of tape meter (in horizontal pozition), and then calculate the angle.
Or give me numerical values, and i calculate it by myself. I need distance from lens to tape meter,
and lenght of visible tape meter.

January 22, 2015 | Unregistered CommenterMichal

Can I use the remote app without wi-fi connectivity?

January 23, 2015 | Unregistered Commentergally777

Thanks a lot for the review! Really cleared out a couple of things to me. Cheers!

January 31, 2015 | Unregistered CommenterRodrigo Romao

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