Product comparison · 2 telephones

Philips CD6451B Cordless phone answer machine vs Philips CD6551B Cordless phone answer machine

49specifications compared
4differ
45identical
2known for one product only

Key differences

The Philips CD6451B Cordless phone answer machine has 3 more multi base capability than the Philips CD6551B Cordless phone answer machine (4 vs 1). The Philips CD6451B Cordless phone answer machine has 200 mAh more battery capacity than the Philips CD6551B Cordless phone answer machine (750 mAh vs 550 mAh). Base dimensions (WxDxH): 116 x 110 x 80 mm on the Philips CD6451B Cordless phone answer machine, 134.5 x 113 x 82.5 mm on the Philips CD6551B Cordless phone answer machine. Handset dimensions (WxDxH): 46 x 26 x 160 mm on the Philips CD6451B Cordless phone answer machine, 163 x 46.5 x 27 mm on the Philips CD6551B Cordless phone answer machine.

Multi base capability
- CD6451B Cordless phone answer machine:4
- CD6551B Cordless phone answer machine:1
Base dimensions (WxDxH)
- CD6451B Cordless phone answer machine:116 x 110 x 80 mm
- CD6551B Cordless phone answer machine:134.5 x 113 x 82.5 mm
Handset dimensions (WxDxH)
- CD6451B Cordless phone answer machine:46 x 26 x 160 mm
- CD6551B Cordless phone answer machine:163 x 46.5 x 27 mm
Battery capacity
- CD6451B Cordless phone answer machine:750 mAh
- CD6551B Cordless phone answer machine:550 mAh

Side by side

Differences highlightedShow differences only

Comparison of CD6451B/FT, CD6551B/FT
51 specifications	A Philips CD6451B Cordless phone answer machine Model CD6451B/FT View product	B Philips CD6551B Cordless phone answer machine Model CD6551B/FT View product
Performanceidentical
Type	DECT telephone	DECT telephone
Answering machine	Yes	Yes
Recording time	30 min	30 min
Ringer type	Polyphonic	Polyphonic
GAP compatible	Yes	Yes
Designidentical
Mounting type	Desk	Desk
Product colour	Black	Black
Backlight buttons	Yes	Yes
Integrated antenna	Yes	Yes
Phone features1 differ
Speakerphone	Yes	Yes
Phonebook capacity	200 entries	200 entries
Short Message Service (SMS)	Yes	Yes
SMS storage capacity	50	50
Babyphone functionKnown for one	Yes	Unknown — not stated by the source
Dialing	Tone/Pulse	Tone/Pulse
Message counter on base	Yes	Yes
Microphone mute	Yes	Yes
Multi base capabilityDiffers	4	1
Multi handset capability	5	5
Number of SMS Boxes	1	1
Paging function	Yes	Yes
VIP group with own melody	Yes	Yes
Call managementidentical
Caller ID	Yes	Yes
Call log entries	50	50
Call waiting	Yes	Yes
Caller ID on call waiting	Yes	Yes
Redial list capacityKnown for one	Unknown — not stated by the source	10
Management featuresidentical
Alarm clock	Yes	Yes
Customizable wallpaper	Yes	Yes
Volume control	Digital	Digital
Indicationidentical
Battery charge indicator	Yes	Yes
LED indicators	Yes	Yes
Displayidentical
Built-in display	Yes	Yes
Display	CSTN	CSTN
Backlight colour	White	White
Backlight display	Yes	Yes
Display resolution	98 x 67 pixels	98 x 67 pixels
Ports & interfacesidentical
Plug and Play	Yes	Yes
Wireless connection	Yes	Yes
Poweridentical
AC input voltage	220 - 240 V	220 - 240 V
AC input frequency	50 Hz	50 Hz
Battery type	AAA	AAA
Number of batteries supported	2	2
Talk time	12 h	12 h
Standby time	150 h	150 h
Weight & dimensions2 differ
Base dimensions (WxDxH)Differs	116 x 110 x 80 mm	134.5 x 113 x 82.5 mm
Handset dimensions (WxDxH)Differs	46 x 26 x 160 mm	163 x 46.5 x 27 mm
Packaging contentidentical
Number of handsets included	1	1
Battery1 differ
Battery technology	Nickel-Metal Hydride (NiMH)	Nickel-Metal Hydride (NiMH)
Battery capacityDiffers	750 mAh	550 mAh
Other featuresidentical
Signal strength indication	Yes	Yes

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.

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