Difference between DVR and NVR

1. Digital Video Recorder (DVR) :
Digital Video Recorder (DVR) is mainly used for recording data from analog cameras or coaxial based cameras. It is paired with analog coax based cameras with resolution  2MP maximum. In this system both power cable and audio/video cable needed. It provides limited range service as it is coax cabled. In this signal stability is independent upon the internet working.

Pros of DVR system –

• Less expensive as compared to NVR
• Provides good image quality over HD
• Easy to operate

Cons of DVR system –

• Requires separate power source
• Generally low quality video
• Less coverage area
• Can not record audio
• Complex installation process

2. Network Video Recorder (NVR) :
Network Video Recorder (NVR) is mainly used for recording data from IP cameras wirelessly over a network. It is paired with IP cameras with resolution ranging from 2MP to 12MP or higher. In this system wireless or single Ethernet cable is used for power & data. It provides long range service upto which network access is available. In this signal stability depends upon the internet working.

Pros of NVR system –

• Can record both video and audio
• Provides better image quality
• Provides more system flexibility
• Provides coverage area
• Can be wired or wireless
• Requires one cable for power and video

Cons of NVR system –

• More expensive
• Software may be difficult to use
• Requires networking knowledge to operate and troubleshoot

Difference between DVR and NVR :

S.No.	DVR	NVR
01.	DVR stands for Digital Video Recorder.	NVR stands for Network Video Recorder.
02.	It is mainly used for recording data from analog cameras or coaxial based cameras.	It is mainly used for recording data from IP cameras wirelessly over a network.
03.	DVR is paired with analog coax based cameras with resolution  2MP maximum.	NVR is paired with IP cameras with resolution ranging from 2MP to 12MP or higher.
04.	DVR uses Coax cables as transmission cable.	NVR uses Ethernet cables as transmission cable.
05.	It has lower recording quality than Network Video Recorder.	It has higher recording quality than Digital Video Recorder.
06.	DVR system setup is tougher as compared to NVR.	NVR system setup is easier as compared to DVR.
07.	DVR camera cost is lower.	NVR camera cost is higher.
08.	Signal stability is independent upon the internet working.	Signal stability depends upon the internet working.
09.	DVR needs lower operating cost than NVR.	NVR needs higher operating cost than DVR.
10.	In DVR system both power cable and audio/video cable needed.	In NVR system wireless or single Ethernet cable is used for power & data.
11.	It can not be placed anywhere as it is limited by the coax cable.	It can be placed anywhere with a network access.