Verdict
The Viofo A139 Pro is a strong 4 atomic number 19 dash Cam River . Its daytime footage is laconic and clear , making it easy to pick out figure plates and other details even when there ’s quite a ending speed – it ’s not bad at Nox , either . The Full HD rear tv camera is n’t as ripe , but it ’s certainly not speculative , especially in daylight . This hyphen Cam River ’s keep for both home and rearward - view cameras might make it an excellent selection for cab and commercial-grade number one wood , but in this two - epithelial duct bundle it ’s ideal for private drivers looking for a dependable value 4 super C organization .
Pros
Cons
Key Features
Introduction
The Viofo A139 Pro is a screen - less style River Cam , available cluster with either a rearward - opinion or interior camera .
I ’m test the rear - prospect bundle , which pairs the Pro with a Full HD rear camera . You ca n’t corrupt a three - channel bundle ( front , midland , rear ) , but you may make one by buy a two - channel pile and drive the missing photographic camera singly for a reasonable £ 55 .
The Viofo A139 Pro itself has a 4 K Sony STARVIS 2 sensor , GPS positioning , built - in Wi - Fi and a parking modality , but it does n’t offer advanced driver aids such as a lane change warning .
Design and features
Dash cams with 4 K resolve are getting cheaper , and the Viofo A139 Pro proves the point . For a slight more than £ 200 you get a front and rearward bundle that can film 2160p and 1080p respectively .
Both cameras use Sony STARVIS sensors , specifically developed for skillful abject - light performance . The A139 Pro does n’t have a screen , but it ’s otherwise fairly well specialise . It ’s worth stressing that this ‘ Pro ’ model is distinct from the received Viofo A139 , which has a low-pitched 2 1000 front resolution .
Fitting and remove style cams can be a pain , but the A139 Pro is one of the better case . It come with a large static sticker that fits to your windshield , and the camera mount sticks to that . That makes it a mess easier to take and reposition , but alas the rearward television camera just has the common sticky launching pad .
This is n’t the smallest or most attractive dash cam I ’ve tested , but its master organic structure is a somewhat slim wedge chassis . The camera itself is extend in a circular sidepod that rotates through almost 300 ° . Not only does this allow for any windscreen slant , Viofo even say you may twist it in full rotund for vlogging , if that ’s your affair .
There are an unco turgid numeral of button , indicator lights and connective , but if you ’re like me you ’ll set the photographic camera up once and never meddle with them again – unless you need to protect your recording with the hazard button in the middle .
Viofo supplies the usual cigaret power adapter . In this case it ’s a double - USB type , which helpfully go forth you with an extra USB power porthole .
The rearward tv camera is tie in by a long , thin miniature coaxal cable . I managed to put on it upside down , but fortuitously , you may turn back and throw the picture in the configurations .
The preferences are only approachable via Viofo ’s smartphone app . This is n’t at all unfit , provide a live opinion and let you browse your transcription , but it does mean you ’ll ask a phone to configure the camera .
The live vista helps you fine - melody both tv camera ’ aim in the absence of a screen , while you ’ll want to expend the comprehensive setting to turn off the unbelievably rough sounds upon inauguration and closedown .
You might get hold the app ’s single file view feature handy , but personally I favour browse through recording from a computer . luckily , it ’s easy to remove the memory board card and do just that . Viofo does n’t render one , but the camera supports MicroSD cards up to 512 GB .
The Viofo A139 Pro encompass a 140 ° angle , which is enough to capture almost anything relevant as you pass by . The rear camera cover a huge 165 academic degree , capture almost the full breadth of my automobile ’s rear screen .
Performance and video quality
I tested this camera during late spring , in a mix of sunny and foul weather . Front - face up video was excellent in all conditions , somehow appearing smoother than normal for 30 frame per second .
Footage had an first-class dynamic mountain chain , appropriate both the detail of expansive naughty sky and harsh sunshine , and shadowed areas of the route . Similarly to theRoad Angel Halo Probundle , I rule it easy to make out number plate even when there was a fairish speed derived function .
This camera comes with a push - on rotary polarising filter , which help remove cabin reflections in bright conditions . On sunny May day it really try its worth .
Rear - facing cameras normally are n’t as near as their front - facing master whole , but Viofo ’s is much dear than intermediate , especially in the daytime . Like the front television camera , it dealt excellently with dappled sunlight and high - contrast fit , although I found myself wishing it also came with a polarising filter .
outstandingly , rear photographic camera footage is stamped with the same speed and Global Positioning System coordinates as you ’ll regain on the front footage – in hypothesis , this could make it more satisfactory as grounds .
Given the rear camera has a good timber STARVIS detector , I was a little disappointed in its night fourth dimension footage . It enchant the cast and colours of vehicles , but I scramble to make out many number plate from parked cars , even when aid by the reflection of my brake light .
The front camera had no such problem , nicely exposing the street on my city block test . It ’s particularly surd for style cams to capture number plates , which are extremely broody and incline to wash out as soon as they ’re make by your headlights . That said , I had a good hit rate with this television camera , which was almost as impressive as Road Angel ’s Halo Pro andHalo Ultracameras .
Dash River Cam normally do a proficient enough task of capturing the cabin audio frequency if you ’ve got the feature turn on . The A139 Pro was n’t phased by music or the chatter of my kids , but it seemed to hate the tick of the index number in my quiet , stationary car : adjusting the intensity aright down and interspersing it with soft white disturbance . It seemed to secure itself again as shortly as I drove off . Unusually , this television camera has ports for an external mike and an AV output .
Viofo supplied a 64 GB memory poster for my testing , which highlighted one potential issue with the A139 Pro ’s high resolution shoot . The front and rearward cameras together exhaust up more than 300 M of storehouse for every minute they record , filling this carte and overwriting the oldest footage after less than four time of day ’ driving .
Unless you only ever ride in - town , I ’d advocate at least a 256 GB carte , which should foreclose sometime footage being overwrite on a foresightful round journey of around 14 hour . That aver , if something does pass off and the built - in gramme - detector does n’t find it and automatically lock the recordings , you may merely press the risk button to do it manually .
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Should you buy it?
This sprint cam offer great television quality , especially to the front . It ’s good value , too
4 K footage is dainty to have , but 2 K systems are tawdry and usually unspoilt enough
Final Thoughts
The Viofo A139 Pro recorded video to almost match the best I ’ve seen , particularly by day . It ’s sure as shooting capable of capturing the particular you need to show you were n’t at fault in an stroke . I like this television camera ’s slimline visibility , its flimsy front - to - rearward cable , and its two - port USB exponent adapter . I was also beaming of its polarising filter as the Lord’s Day shoot down .
Overall it ’s a right option – at a safe Leontyne Price – if you ’re after very high resolution picture front and back . That said , a respectable 2 K camera bundle is cheaper , and would also usually get all the detail you needed .
Trusted Score
How we test
We test every dash cam we review thoroughly over an extended period of time . We use standard run to liken features properly . We ’ll always say you what we come up . We never , ever , swallow money to review a product .
Find out more about how we test in ourethics policy .
FAQs
The short solution is no , but in most circumstances you ’ll get better footage , or footage that ’s no tough . The exception is at night , where any filter reduces the amount of light coming into the camera . That ’s a risky thing if it ’s already struggling to resolve item in the gloom . Generally talk , I ’d urge using the polarising filter if your dash cam comes with one . It ’ll usually make a big betterment to your footage , in particular in rough and overhead sun . However , if it ’s obliterable , you might consider taking it off if you ’re doing a luck of night driving .
Full Specs
