Product comparison · 2 video intercom systems

Dahua Technology VTH2421FB video intercom system vs Dahua Technology VTO6521K-S2 IP Apartment Door Station

18specifications compared
12differ
6identical
31known for one product only

Key differences

The Dahua Technology VTO6521K-S2 IP Apartment Door Station has 11 W more power consumption (typical) than the Dahua Technology VTH2421FB video intercom system (18 W vs 7 W). The Dahua Technology VTO6521K-S2 IP Apartment Door Station has 4 W more power consumption (standby) than the Dahua Technology VTH2421FB video intercom system (5 W vs 1 W). The Dahua Technology VTO6521K-S2 IP Apartment Door Station has 184.5 mm more width than the Dahua Technology VTH2421FB video intercom system (406 mm vs 221.5 mm). Display diagonal: 17.8 cm (7") on the Dahua Technology VTH2421FB video intercom system, 10.9 cm (4.3") on the Dahua Technology VTO6521K-S2 IP Apartment Door Station. Display resolution: 1024 x 600 pixels on the Dahua Technology VTH2421FB video intercom system, 800 x 480 pixels on the Dahua Technology VTO6521K-S2 IP Apartment Door Station.

Display diagonal
- VTH2421FB video intercom system:17.8 cm (7")
- VTO6521K-S2 IP Apartment Door Station:10.9 cm (4.3")
Display resolution
- VTH2421FB video intercom system:1024 x 600 pixels
- VTO6521K-S2 IP Apartment Door Station:800 x 480 pixels
Voice codecs
- VTH2421FB video intercom system:G.711
- VTO6521K-S2 IP Apartment Door Station:G.711a, G.711u, PCM
Product colour
- VTH2421FB video intercom system:Black
- VTO6521K-S2 IP Apartment Door Station:Stainless steel
Indoor unit power type
- VTH2421FB video intercom system:DC
- VTO6521K-S2 IP Apartment Door Station:DC/PoE
Power consumption (typical)
- VTH2421FB video intercom system:7 W
- VTO6521K-S2 IP Apartment Door Station:18 W
Power consumption (standby)
- VTH2421FB video intercom system:1 W
- VTO6521K-S2 IP Apartment Door Station:5 W
Width
- VTH2421FB video intercom system:221.5 mm
- VTO6521K-S2 IP Apartment Door Station:406 mm

Side by side

Differences highlightedShow differences only

Comparison of VTH2421FB, VTO6521K-S2
49 specifications	A Dahua Technology VTH2421FB video intercom system Model VTH2421FB View product	B Dahua Technology VTO6521K-S2 IP Apartment Door Station Model VTO6521K-S2 View product
Featuresidentical
Connectivity technology	Wired	Wired
Speakerphone	Yes	Yes
Echo cancellationKnown for one	Unknown — not stated by the source	Yes
ColourKnown for one	Yes	Unknown — not stated by the source
Number of displays supportedKnown for one	1	Unknown — not stated by the source
Built-in microphoneKnown for one	Yes	Unknown — not stated by the source
Wall mountableKnown for one	Yes	Unknown — not stated by the source
Display2 differ
Display diagonalDiffers	17.8 cm (7")	10.9 cm (4.3")
Display resolutionDiffers	1024 x 600 pixels	800 x 480 pixels
Display technologyKnown for one	LCD	Unknown — not stated by the source
Backlight displayKnown for one	Yes	Unknown — not stated by the source
TouchscreenKnown for one	Yes	Unknown — not stated by the source
Touchscreen typeKnown for one	Capacitive	Unknown — not stated by the source
Video formats supportedKnown for one	H.264	Unknown — not stated by the source
Cameraidentical
Megapixel (approx.)Known for one	Unknown — not stated by the source	2 MP
Supported video modesKnown for one	Unknown — not stated by the source	720p, 1080p
Sensor typeKnown for one	Unknown — not stated by the source	CMOS
Optical sensor sizeKnown for one	Unknown — not stated by the source	25.4 / 2.8 mm (1 / 2.8")
Maximum frame rateKnown for one	Unknown — not stated by the source	25 fps
Viewing angle, horizontalKnown for one	Unknown — not stated by the source	95°
Viewing angle, verticalKnown for one	Unknown — not stated by the source	50°
Audio1 differ
Built-in speaker(s)	Yes	Yes
Noise-cancelingKnown for one	Unknown — not stated by the source	Yes
Voice codecsDiffers	G.711	G.711a, G.711u, PCM
Number of speakersKnown for one	1	Unknown — not stated by the source
Design1 differ
Product colourDiffers	Black	Stainless steel
International Protection (IP) codeKnown for one	Unknown — not stated by the source	IP65
Placement supportedKnown for one	Horizontal	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) portsKnown for one	Unknown — not stated by the source	1
Supported network protocolsDiffers	TCP/IP	FTP;RTMP;HTTP/HTTPS;DNS;RTSP;SSH;ONVIF;SIP;RTP
Softwareidentical
Operating system installedKnown for one	Unknown — not stated by the source	Linux
Power3 differ
Indoor unit power typeDiffers	DC	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)Differs	7 W	18 W
Power consumption (standby)Differs	1 W	5 W
Operational conditionsidentical
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	0 - 90%
Operating temperature (T-T)Known for one	Unknown — not stated by the source	-30 - 60 °C
Weight & dimensions4 differ
WidthDiffers	221.5 mm	406 mm
DepthDiffers	21.5 mm	143 mm
HeightDiffers	119.6 mm	54 mm
WeightDiffers	350 g	2.3 kg
Packaging dataidentical
Indoor unit included	Yes	Yes
Outdoor unit includedKnown for one	No	Unknown — not stated by the source
Technical detailsidentical
CertificationKnown for one	Unknown — not stated by the source	CE

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 VTH2421FB video intercom system vs Dahua Technology VTO6521K-S2 IP Apartment Door Station

Key differences

Side by side

More video intercom system comparisons