Product comparison · 2 telephones

Philips CD2551S Cordless phone answer machine vs Philips CD6451B Cordless phone answer machine

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  • 21specifications compared
  • 8differ
  • 13identical
  • 40known for one product only

Key differences

The Philips CD6451B Cordless phone answer machine has 15 min more recording time than the Philips CD2551S Cordless phone answer machine (30 min vs 15 min). The Philips CD6451B Cordless phone answer machine has 100 entries more phonebook capacity than the Philips CD2551S Cordless phone answer machine (200 entries vs 100 entries). The Philips CD6451B Cordless phone answer machine has 3 more multi base capability than the Philips CD2551S Cordless phone answer machine (4 vs 1). Product colour: White on the Philips CD2551S Cordless phone answer machine, Black on the Philips CD6451B Cordless phone answer machine. Base dimensions (WxDxH): 118.5 x 113 x 82.5 mm on the Philips CD2551S Cordless phone answer machine, 116 x 110 x 80 mm on the Philips CD6451B Cordless phone answer machine.

  • Recording time
    • CD2551S Cordless phone answer machine:15 min
    • CD6451B Cordless phone answer machine:30 min
  • Product colour
    • CD2551S Cordless phone answer machine:White
    • CD6451B Cordless phone answer machine:Black
  • Phonebook capacity
    • CD2551S Cordless phone answer machine:100 entries
    • CD6451B Cordless phone answer machine:200 entries
  • Multi base capability
    • CD2551S Cordless phone answer machine:1
    • CD6451B Cordless phone answer machine:4
  • Call log entries
    • CD2551S Cordless phone answer machine:20
    • CD6451B Cordless phone answer machine:50
  • Base dimensions (WxDxH)
    • CD2551S Cordless phone answer machine:118.5 x 113 x 82.5 mm
    • CD6451B Cordless phone answer machine:116 x 110 x 80 mm
  • Handset dimensions (WxDxH)
    • CD2551S Cordless phone answer machine:162 x 48 x 28.5 mm
    • CD6451B Cordless phone answer machine:46 x 26 x 160 mm
  • Battery capacity
    • CD2551S Cordless phone answer machine:600 mAh
    • CD6451B Cordless phone answer machine:750 mAh

Side by side

Differences highlightedShow differences only (on)
Comparison of CD2551S/38, CD6451B/51
61 specifications
Performance1 differ
Recording timeDiffers15 min30 min
IntercomKnown for oneUnknown — not stated by the sourceNo
Ringer typeKnown for oneUnknown — not stated by the sourcePolyphonic
GAP compatibleKnown for oneUnknown — not stated by the sourceYes
TypeKnown for oneDECT telephoneUnknown — not stated by the source
Design1 differ
Mounting typeKnown for oneUnknown — not stated by the sourceDesk
Product colourDiffersWhiteBlack
Backlight buttonsKnown for oneUnknown — not stated by the sourceYes
Integrated antennaKnown for oneUnknown — not stated by the sourceYes
Phone features2 differ
Phonebook capacityDiffers100 entries200 entries
Short Message Service (SMS)Known for oneUnknown — not stated by the sourceYes
SMS storage capacityKnown for oneUnknown — not stated by the source50
DialingKnown for oneUnknown — not stated by the sourceTone/Pulse
Message counter on baseKnown for oneUnknown — not stated by the sourceYes
Microphone muteKnown for oneUnknown — not stated by the sourceYes
Multi base capabilityDiffers14
Number of SMS BoxesKnown for oneUnknown — not stated by the source1
VIP group functionKnown for oneUnknown — not stated by the sourceYes
VIP group with own melodyKnown for oneUnknown — not stated by the sourceYes
Polyphonic ringKnown for oneYesUnknown — not stated by the source
Call management1 differ
Call blockingKnown for oneUnknown — not stated by the sourceYes
Call log entriesDiffers2050
Caller ID on call waitingKnown for oneUnknown — not stated by the sourceYes
RedialingKnown for oneYesUnknown — not stated by the source
Conference callKnown for oneYesUnknown — not stated by the source
Explicit call transferKnown for oneYesUnknown — not stated by the source
Management featuresidentical
Customizable wallpaperKnown for oneUnknown — not stated by the sourceYes
PersonalizationKnown for oneUnknown — not stated by the sourceIcons
Volume controlKnown for oneUnknown — not stated by the sourceDigital
Indicationidentical
Battery charge indicatorKnown for oneUnknown — not stated by the sourceYes
Battery capacity indicatorKnown for oneYesUnknown — not stated by the source
Displayidentical
Built-in displayKnown for oneUnknown — not stated by the sourceYes
DisplayKnown for oneUnknown — not stated by the sourceCSTN
Backlight colourKnown for oneUnknown — not stated by the sourceWhite
Backlight displayKnown for oneUnknown — not stated by the sourceYes
Display resolutionKnown for oneUnknown — not stated by the source98 x 67 pixels
Ports & interfacesidentical
Plug and PlayKnown for oneUnknown — not stated by the sourceYes
Poweridentical
AC input voltageKnown for oneUnknown — not stated by the source220 - 240 V
AC input frequencyKnown for oneUnknown — not stated by the source50 Hz
Power requirementsKnown for one220-240V, 50HzUnknown — not stated by the source
Weight & dimensions2 differ
Base dimensions (WxDxH)Differs118.5 x 113 x 82.5 mm116 x 110 x 80 mm
Handset dimensions (WxDxH)Differs162 x 48 x 28.5 mm46 x 26 x 160 mm
Packaging contentidentical
Number of handsets includedKnown for oneUnknown — not stated by the source1
Base stationKnown for oneUnknown — not stated by the sourceYes
Battery1 differ
Battery capacityDiffers600 mAh750 mAh
Other featuresidentical
Signal strength indicationKnown for oneUnknown — not stated by the sourceYes
Mac compatibilityKnown for oneNoUnknown — not stated by the source
Full duplexKnown for oneYesUnknown — 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.

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