Product comparison · 2 video intercom systems

Dahua Technology VTO3311Q-WP video intercom system vs Dahua Technology VTO6521K-S2 IP Apartment Door Station

21specifications compared
12differ
9identical
30known for one product only

Key differences

The Dahua Technology VTO3311Q-WP video intercom system has 5 fps more maximum frame rate than the Dahua Technology VTO6521K-S2 IP Apartment Door Station (30 fps vs 25 fps). The Dahua Technology VTO3311Q-WP video intercom system has 30° more viewing angle, horizontal than the Dahua Technology VTO6521K-S2 IP Apartment Door Station (125° vs 95°). The Dahua Technology VTO3311Q-WP video intercom system has 15° more viewing angle, vertical than the Dahua Technology VTO6521K-S2 IP Apartment Door Station (65° vs 50°). Product colour: Grey on the Dahua Technology VTO3311Q-WP video intercom system, Stainless steel on the Dahua Technology VTO6521K-S2 IP Apartment Door Station. Operating temperature (T-T): 10 - 90 °C on the Dahua Technology VTO3311Q-WP video intercom system, -30 - 60 °C on the Dahua Technology VTO6521K-S2 IP Apartment Door Station.

Maximum frame rate
- VTO3311Q-WP video intercom system:30 fps
- VTO6521K-S2 IP Apartment Door Station:25 fps
Viewing angle, horizontal
- VTO3311Q-WP video intercom system:125°
- VTO6521K-S2 IP Apartment Door Station:95°
Viewing angle, vertical
- VTO3311Q-WP video intercom system:65°
- VTO6521K-S2 IP Apartment Door Station:50°
Product colour
- VTO3311Q-WP video intercom system:Grey
- VTO6521K-S2 IP Apartment Door Station:Stainless steel
Power consumption (standby)
- VTO3311Q-WP video intercom system:3 W
- VTO6521K-S2 IP Apartment Door Station:5 W
Operating temperature (T-T)
- VTO3311Q-WP video intercom system:10 - 90 °C
- VTO6521K-S2 IP Apartment Door Station:-30 - 60 °C
Width
- VTO3311Q-WP video intercom system:107.2 mm
- VTO6521K-S2 IP Apartment Door Station:406 mm
Depth
- VTO3311Q-WP video intercom system:30 mm
- VTO6521K-S2 IP Apartment Door Station:143 mm

Side by side

Differences highlightedShow differences only

Comparison of VTO3311Q-WP, VTO6521K-S2
51 specifications	A Dahua Technology VTO3311Q-WP video intercom system Model VTO3311Q-WP View product	B Dahua Technology VTO6521K-S2 IP Apartment Door Station Model VTO6521K-S2 View product
Featuresidentical
Connectivity technology	Wired	Wired
SpeakerphoneKnown for one	Unknown — not stated by the source	Yes
Echo cancellationKnown for one	Unknown — not stated by the source	Yes
ColourKnown for one	No	Unknown — not stated by the source
Number of buttonsKnown for one	4 buttons	Unknown — not stated by the source
Displayidentical
Display diagonalKnown for one	Unknown — not stated by the source	10.9 cm (4.3")
Display resolutionKnown for one	Unknown — not stated by the source	800 x 480 pixels
Video formats supportedKnown for one	H.264, H.265	Unknown — not stated by the source
Camera3 differ
Megapixel (approx.)	2 MP	2 MP
Supported video modes	720p, 1080p	720p, 1080p
Sensor type	CMOS	CMOS
Optical sensor size	25.4 / 2.8 mm (1 / 2.8")	25.4 / 2.8 mm (1 / 2.8")
Maximum frame rateDiffers	30 fps	25 fps
Viewing angle, horizontalDiffers	125°	95°
Viewing angle, verticalDiffers	65°	50°
Digital zoomKnown for one	139x	Unknown — not stated by the source
Audioidentical
Built-in speaker(s)Known for one	Unknown — not stated by the source	Yes
Noise-cancelingKnown for one	Unknown — not stated by the source	Yes
Voice codecsKnown for one	Unknown — not stated by the source	G.711a, G.711u, PCM
Design1 differ
Product colourDiffers	Grey	Stainless steel
International Protection (IP) code	IP65	IP65
IK codeKnown for one	IK08	Unknown — not stated by the source
Housing materialKnown for one	Aluminium, Metal	Unknown — not stated by the source
Indoor unitidentical
Alarm input channelsKnown for one	Unknown — not stated by the source	2
RS-485 portsKnown for one	Unknown — not stated by the source	1
Network1 differ
Ethernet interface type	Fast Ethernet	Fast Ethernet
Ethernet LAN data rates	10,100 Mbit/s	10,100 Mbit/s
Ethernet LAN (RJ-45) ports	1	1
Supported network protocolsDiffers	RTSP; DNS; P2P; UPnP; RTP; RTMP; SIP; SSH; HTTP/ HTTPS; ONVIF	FTP;RTMP;HTTP/HTTPS;DNS;RTSP;SSH;ONVIF;SIP;RTP
Softwareidentical
Operating system installedKnown for one	Unknown — not stated by the source	Linux
Power1 differ
Indoor unit power typeKnown for one	Unknown — not stated by the source	DC/PoE
AC adapter output voltageKnown for one	Unknown — not stated by the source	12 V
AC adapter output currentKnown for one	Unknown — not stated by the source	2 A
Power consumption (typical)Known for one	Unknown — not stated by the source	18 W
Power consumption (standby)Differs	3 W	5 W
Outdoor unit power typeKnown for one	DC	Unknown — not stated by the source
Operational conditions1 differ
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	0 - 90%
Operating temperature (T-T)Differs	10 - 90 °C	-30 - 60 °C
Door station operating temperature (T-T)Known for one	-40 - 60 °C	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	107.2 mm	406 mm
DepthDiffers	30 mm	143 mm
HeightDiffers	188.1 mm	54 mm
WeightDiffers	550 g	2.3 kg
Packaging dataidentical
Indoor unit includedKnown for one	Unknown — not stated by the source	Yes
Outdoor unit includedKnown for one	Yes	Unknown — not stated by the source
Package weightKnown for one	810 g	Unknown — not stated by the source
Technical details1 differ
CertificationDiffers	CE; FCC	CE
Night visionidentical
Night visionKnown for one	Yes	Unknown — not stated by the source
LED typeKnown for one	IR	Unknown — not stated by the source
Logistics dataidentical
Quantity per packKnown for one	1 pc(s)	Unknown — not stated by the source
Packaging contentidentical
Packaging contentKnown for one	Alarm power ribbon cable, rain cover	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

Dahua Technology VTO3311Q-WP video intercom system vs Dahua Technology VTO6521K-S2 IP Apartment Door Station

Key differences

Side by side

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