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Panasonic KX-TG8421

Panasonic KX-TG8421
alaScore 82

55 reviews

Nov, 2015

alaTest has collected and analyzed 55 reviews of Panasonic KX-TG8421. The average rating for this product is 4.3/5, compared to an average rating of 4.0/5 for other Cordless Phones for all reviews.

We analyzed user and expert ratings, product age and more factors. Compared to other Cordless Phones the Panasonic KX-TG8421 is awarded an overall alaScore™ of 82/100 = Very good quality.

Review analysis

(Based on 55 reviews)

Expert Reviews  

User Reviews  


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Showing 1 - 45 of 45 Show Reviews: in English | in other languages (9)

Consumer review by: ( review summary for Panasonic KX-TG8421


alaTest has collected and analyzed 43 user reviews of Panasonic KX-TG8421 from The average user rating for this product is 4.3/5, compared to an average user rating of 4.1/5 for other Cordless Phones on

93% of the reviews on give this product a positive rating.

This summary is based on the product: Panasonic KX-TG8421EB Colour DECT Single Phone With Answer Machine - Black

Nov, 2015

Expert review by: mfereday (

A Panasonic DECT Phone : Panasonic,KX-TG8421


While nowhere as near as prolific as new mobile phone handsets that appear on a regular basis, its near-cousin, the DECT phone, does come in a variety of models from different manufacturers.

The KX-TG8421 DECT phone looks better that its name would indicate. It is easy to set up and has a useful range of features. The handset should give up to 15 hours talk time or 250 hours on standby when away from the docking base. Panasonic has priced...

Jan, 2010

Expert review by: (

Panasonic KX-TG 8421, 8422, 8423, 8424


In their new range of dect phones, Panasonic have launched the KX-TG range, a state of the art cordless phone. The stylish phone is available in both black and silver, and is full of features but still remains one of the easiest phones on the market to...

Dec, 2009

Product Specifications


Built-in Camera: No
Cordless Phone Standard:DECT
Hands Free Functionality: Yes
Loudspeakers: Yes
Low Radiation: Yes
MMS Functionality: No
Polyphonic Ringtones: Yes
SIM Reader: No
SMS Function: Yes
Video Phone: No


Bluetooth: No
Ethernet: No
ISDN Port: No


Backlight Illumination:Display + Keypade Backlight
Number of Display Colours:65.536

General Features

Elderly Friendly Phone: No
Recording System:Digital Announcement and Recording
System Phone: No
Type:Cordless Phone with Answering Machine

IP Telephony

H.323 VoIP-Protocol: No
IP Phone: No
SIP-Standard (Session Initiation Protocol): No


Display of Calling Number: Yes