Hikvision vs. Dahua – The Most Popular IP Cameras Compared

Hikvision and Dahua are two of the most popular IP camera brands among DIY enthusiasts. Most of my cameras are Hiks, but that’s more due to my lack of experience when I first got into DIY CCTV. Often when I saw recommendations being made online, it went like this: “Avoid Foscam, go for Hikvision”. So you can understand when it came to pulling the trigger, I was leaning towards Hikvision.

Dahua was also mentioned but there were definitely fewer people using them compared to Hikvision. There didn’t seem to be any particular reason other than Hikvision being a bit cheaper.

I have written extensively about Hikvision in this brand guide, so I think its time to learn a bit more about Dahua. According to IHS, 53% of all security cameras shipped in 2015 were network (or IP) cameras. While Hikvision is the world leader in IP cameras with a global market share of 17% forecast in 2017, Dahua comes in second with a forecast of 5.5%.

I will look at the 4MP IP cameras as this is the most common resolution for newer IP cameras sold.

4MP IP Camera Duel – Hikvision DS-2CD2042WD-I vs. Dahua IPC-HFW4421S

Here’s a summary in a nice and easy table:

FeatureHikvision DS-2CD2042WD-IDahua IPC-HFW4421
Hardware features
Sensor1/3" 4Megapixel Progressive Scan CMOS
120dB WDRYes
Night VisionIR cut filter with auto switch
IR Range30m40m
Minimum illumination0.01 lux and 0 lux with IR on
Lens TypeFixed type
Lens4mm, 6mm @ F2.0, Angle of view: 83°(4mm) , 55.4°(6mm)3.6mm, 6mm @ F2.0, Angle of view: 84°(3.6mm) , 56°(6mm)
Metallic housingYes
Ingress ProtectionIP66IP67
DC 12V powerYes
Longest dimension154mm180mm
Power usage<5W<6W
PoEYes, 802.3af
SD CardNo
Alarm in/outNo
Audio in/outNo
Software features
Built-in NVRYesYes
Max Resolution2688×1520 (4MP)2560×1440 (4MP)
Max bitrate16 Mbps10 Mbps
Simultaneous streams23
3D Noise ReductionYes
Network storageNAS (Supports NFS, SMB/CIFS), FTP, ANR
Alert events
Email alertsYes
Push alertsYes
Simple motion detectionYes
Line crossing detectionYes
Intrusion detectionYes
Audio DetectionNo
Abandoned/Missing object detectionNoYes
Scene change detectionNoYes
Face detectionNoYes
Where to buy

View on Amazon

View on Amazon

View on B&H Photo

View on B&H Photo


Both the 4MP Dahua and Hikvision have the most common sensor in this class of IP camera, a 1/3″ progressive scan CMOS sensor.

Let’s put that into perspective – the highly rated $1300 prosumer Canon Legria HF G25 video camera also has a 1/3″ sensor, albeit at 3MP.

The size of the sensor has a huge bearing on the low light ability of a camera, whether it be a camcorder or a security camera. The larger the sensor, the greater its ability to gather light and so do well in low light conditions. But as you cram in more and more pixels into the same size sensor, they get smaller and smaller, which adds noise. Noise is the bane of low light video and reduces the detail that you can get out of your video.

So while security camera manufacturers have pushed pixel count from 3MP to 4MP, they have not increased the sensor size. However both the Hikvision and Dahua 4MP models have true 120dB Wide Dynamic Range (WDR) to help improve video quality.

Both cameras can do a minimum illumination of 0.01 lux and 0 lux with IR on. It’s interesting to note that the Hikvision goes down to a lower f-stop to achieve this than the Dahua. Both cameras have fixed lenses available at different focal lengths. Hikvision does 4mm and 6mm, whereas Dahua offers more options with 2.8mm, 3.6mm and 6mm.


Let’s get the basics out of the way, both cameras support ONVIF and RTSP, the two most important features you should look for in an IP camera.

ONVIF ensures that your camera will work with standards-compliant equipment from 3rd party manufacturers.

RTSP allows even non-ONVIF equipment (such as software) to access the security camera’s video stream. Examples are video players like the popular VLC player.

When it comes to features, one striking difference is that the Hikvision 2CD2042WD-I has a max bitrate of 16Mbps vs. the 10 Mbps of the Dahua IPC-HFW4421S. This shouldn’t be an issue though, I’m quite happy with the 6Mbps stream from my Hikvisions.

This bitrate provides sufficient quality while extending the number of days I can store on the QNAP NAS that I use as my DIY NVR.

An unusual feature the Dahua has is the ability to provide three simultaneous video streams at different resolutions, whereas the Hikvision can do only two different resolution simultaneously.

Now, its important to note this is not the limit of simultaneous streams of a particular resolution, its only the number of different resolutions it can encode simultaneously. So for the Dahua, you could have 10 streams recording/viewing at full 4MP, 5 at D1/CIF and another 5 streams at 720p resolution.

Motion Detection

Both cameras support basic motion detection as well as advanced motion detection techniques. But the Dahua has the advantage here with face detection, abandoned object and missing object detection.

I can’t emphasize enough the importance of these advanced motion detection methods in reducing false motion alerts.


So as you can see the Hikvision and Dahua are very similar but have just enough between them to warrant a closer look. Also check out the other recommendations on our best outdoor IP cameras list.

Where to buy

From Amazon (not official retailer)

Hikvision 4MP DS-2CD2042WD-I IR PoE Network Security Bullet Camera 4mm Lens

1 used from $157.50
Free shipping
Last update was on: December 7, 2019 6:52 am
in stock
$87.35 $89.39

4MP Varifocal PoE IP Bullet Security Camera IPC-HFW4431R-Z 2.7mm~12mm VF Lens Motorized 4X Optical Zoom Outdoor Surveillance Camera,80m IR,Smart H.265,ONVIF,Waterproof,Compatible...

1 used from $85.49
Free shipping
Last update was on: December 7, 2019 6:52 am
in stock
$89.99 $120.00

A quick note: This article may contain affiliate links. If you click on one of these links and then purchase something, we may receive a fee. This goes towards the costs of running this website and does not cost you anything extra. Also note that Hikvision and Dahua do not consider certain platforms including Amazon as an authorised seller, so we recommend B&H Photo who are authorised resellers of Hikvision and Dahua products.

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  1. It might also be worth mentioning that many other brands relabel Hikvision and Dahua cameras. I believe your current “Best Indoor Camera” and “Best Outdoor Camera” both fall into this category. (Amcrest relabels Dahua, and gets them to customize the firmware to make it a bit more user-friendly.)

    I haven’t tried any of the two particular cameras you reviewed, but, assuming that it’s still true, another point worth mentioning about both Dahua and Hikvision is that they usually ship cameras set to a static ip, and DHCP is not on by default. That makes it a bit of a hassle for novice users to set up. This is one of the things that’s nicer about the Amcrest cameras, which ship with DHCP on by default.

  2. What is your opinion of WatchNET product?
    Just another Dahue rebrand?


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