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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)

Here is a short video of the SJ4000 HD 1080p wifi camera I bought off from ebay for $84.00. I thought it was a good deal and a good quality video for the price. Please check it out and let me know what you think. Thanks.

November 15, 2014 | Unregistered CommenterDavcrockett

Here is a short video of the SJ4000 HD 1080p wifi camera I bought off from ebay for $84.00. I thought it was a good deal and a good quality video for the price. Please check it out and let me know what you think. Thanks.

November 15, 2014 | Unregistered CommenterDavcrockett

Does the wifi version affects the battery too much? wifi can be turned on/off right? both non-wifi and wifi version uses same battery?

November 19, 2014 | Unregistered Commenterashish

You'll see in the video, during the section where I demonstrate the Wifi when I turn it on using the button on the side the screen on the back of the camera shows a big WiFi logo instead of the viewfinder. You only use the wifi for a few seconds to transfer files and line up shots. It's not supposed to be left on for any amount of time.

November 19, 2014 | Registered CommenterTechmoan

As we know this camera can take still pictures up to 3Mpix without interpolation (sensor limitation). However it seems that 12Mpix pictures are a little bit better than 3Mpix afte resizing. Any recommendations to get best results in still pictures?

November 19, 2014 | Unregistered CommenterPi

Would be nice to view the MP4 file especially when we don't use insecure FLASH.

November 20, 2014 | Unregistered CommenterEE

Link me to a file sharing service that allows at least 100GB downloads per month, 250mb file size and no auto-deletion of old files that doesn't use flash and I'll adopt it.

November 20, 2014 | Registered CommenterTechmoan

Awesome review. Thanks so much for posting this. I can't wait for my camera to come in.

November 20, 2014 | Unregistered CommenterGreg

Hi great review.
Does the Gopro wifi remote work with the SJ4000 wifi?
Also best picture settings for Snow? :)

November 22, 2014 | Unregistered CommenterKrix

Great review, many thanks. Are you aware of an action cam like this one which actually takes good high res (10 -14 mpixels) stills also? I'm into bike touring and am trying to cut out on the tech I need to take with me. Many thanks in advance.

November 22, 2014 | Unregistered CommenterPaulo

After months of reading reviews and scanning this product carefully, I finally decided to get one from Aliexpress (I live in India). I have always been an action camera fan but gopro s were out of my reach. After about 3 weeks of eager anticipation, the product arrived and I was taken aback with the quality of the camera . Helmet mount did fine but I decided to mount it on my handlebar for better control.
I went for a long tour and on the very first day, the mount broke taking the camera with it , only to look at it helplessly come under the wheels of a passing vehicle.
I do not know what to do and I am deeply disappointed as it happened only in my second week of use..
Please suggest.

November 23, 2014 | Unregistered CommenterSaptarshi

Hi Saptarshi,

Sorry to hear about your misfortune while using the camera, I highly doubt anyone will warranty anything other than the mount itself which does you little good at this point... I assume the camera itself was totally destroyed no? My only suggestion if there is a next time, is to use a tether to give your device a safety net in the event the mount(s) do break, I do this all the time as am a little sceptical of the plastic used and its quality.


November 23, 2014 | Unregistered CommenterSlivy58

Hi Techmoan,
Thanks for the top class review. I went ahead and bought the unit based on your review, Quick question, after receiving the camera in the post I've found the buttons on the waterproof case to be EXTREMELY stiff and unresponsive. Do you or anyone else have this issue? Appreciate any response. BTW bought the camera from Foxoffer.

November 24, 2014 | Unregistered CommenterDon

thanks for very nice and helpful review. Very professional, clear and sharp video.
Can I ask some questions?
1. How is the minimum focus distance ?
2. How is maximum distance for ipad wifi access?
3. Can the camcorder use some kind of external battery box for better battery life?
I want use the camcorder also to record birds in birdsbox.

November 25, 2014 | Unregistered CommenterMichal

It's fixed focus, so 30cm or so. Wifi is a few feet about as far as you could chuck a brick, all USB powered cameras can run from a USB battery pack...more general info here

November 25, 2014 | Registered CommenterTechmoan

Besides the App is there any other way to remotely control this camera using the wifi? Like a remote on the msrketvwhichnis compatible. Taking it on and off my helmet is annoying.

Kind regards

November 27, 2014 | Unregistered CommenterKris

Hi a NEW SJ CAM is out!


Hope you can review it soon :)

December 4, 2014 | Unregistered CommenterBlitz

Not only is there a SJCAM M10 (which is just an SJ4000, but SJCAM just launched 3 far more interesting new cameras:

SJ5000 (14 mp sensor, 1080p30) - $120
SJ5000 wifi (14 mp sensor, 1080p30) - $140
SJ5000+ wifi (16mp sensor, 1080p60, 720p120) - $170

Yes, finally the real SJ5000 has arrived! check is here:

Hope you'll be reviewing the SJ500+ wifi soon, Techmoan!

December 5, 2014 | Unregistered CommenterJordy

I always try to buy all the cameras I review rather than getting pre release review samples that can differ from
the finished version especially when it comes to firmware, packaging and accessories. You'll notice that the M10 is already on sale and the SJ5000+ is a preorder. From that you'll be able to work out which of those two cameras is getting its review assembled at the moment and which camera is still in pieces somewhere in China.

December 5, 2014 | Registered CommenterTechmoan

Many thanks Techmoan....what an incredibly detailed review! I have been thinking of the GoPro for my 13 year old daughter for Xmas and our Thailand snorkelling/ scuba...However, I think this would be a much better entry level camera for us to see if she really embraces it.
Thank you!

December 7, 2014 | Unregistered CommenterSimon Power

One thing I've recently found out - Both of the brackets supplied that attach to the casing and that slide into the sticky mounts on mine broke so I purchased some generic gopro ones to replace them with -

And it seems GoPro brackets don't fit into the SJ stick on brackets , the channel in the middle seems ok but the the bracket itself is slightly too wide for the mount - The reverse is true the SJ brackets will fit into a gopro sticky mounts though.

December 7, 2014 | Unregistered CommenterDerek

Hey guys,
I recently updated my software with the offical software on the SJCAM website and my OK button doesnt work.

My Arrow DOWN button is my "OK" or record button.

Any fixes?

December 9, 2014 | Unregistered CommenterAndy

Hi and thanks for this great review.

I want to buy a camera like this, Do you think this camera is the best in this price range?

Can you give a direct link from a trusted reseller on the amazon Uk or other one in europe. I´m from Portugal and this camera is not available here.


December 11, 2014 | Unregistered CommenterJoão Santos dear techmoan thank you for your very informative and thorough reviews... Is this price from aliexpress is real...

December 14, 2014 | Unregistered CommenterSamuel

December 15, 2014 | Unregistered Commentersamuel

Hi Techmoan,

thank you for the very detailed review. Possibly you are the only one who did the test of the hdmi out too. I have two questions about it. First of all what is the resolution of the hdmi out? I'm asking it because someone at another forum has posted, that it pushes out very low resoulution (not full HD). What are your experiences?

My second question is about the latency. Although your review is great, i would be glad to see a live stopwatch parallel with the hdmi out. :-)
Have you done such experiments? Or could you just give an approximately value?

Thank you in advance.

December 17, 2014 | Unregistered CommenterLászló

I seem to recall it being 1080i, but I can't guarantee this. Perhaps someone who is using one at the moment might chip in here. As far as latency, that's not something I'll get involved in. If you need to know about technical info like this then you are very likely to find an answer on the RCGroups forums.

December 17, 2014 | Registered CommenterTechmoan

Thanks so much, TechMoan. I stumbled onto your site and boy, am I glad I did. Your reviews are wonderful. I've already sent for the SJ4000 WiFi and the G1W car camera. You've saved me a ton of cash if they work out. I've looked through a bunch of your vids. Great stuff!

December 20, 2014 | Unregistered CommenterKimTyson

Heres the SJ4000 video I made.

December 20, 2014 | Unregistered CommenterDavcrockett

Just bought the sj4000; seems a great product for the price.
I am having problems when recording. After about 20 minutes (car cam) the sound goes awry and I all I hear is a hiss for the rest of the trip.
Tried it again today in the car, same problem. I am running off the camera battery so not using a charger.
I see in other forums that this has been a problem for a few people but no suggestions for the cause.
Any ideas please.
Love your videos

December 21, 2014 | Unregistered Commentermal

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