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Panasonic KX-TG6400 review: Panasonic KX-TG6400

Panasonic KX-TG6400

David Carnoy Executive Editor / Reviews
Executive Editor David Carnoy has been a leading member of CNET's Reviews team since 2000. He covers the gamut of gadgets and is a notable reviewer of mobile accessories and portable audio products, including headphones and speakers. He's also an e-reader and e-publishing expert as well as the author of the novels Knife Music, The Big Exit and Lucidity. All the titles are available as Kindle, iBooks, Kobo e-books and audiobooks.
Expertise Headphones, Bluetooth speakers, mobile accessories, Apple, Sony, Bose, e-readers, Amazon, glasses, ski gear, iPhone cases, gaming accessories, sports tech, portable audio, interviews, audiophile gear, PC speakers Credentials
  • Maggie Award for Best Regularly Featured Web Column/Consumer
David Carnoy
3 min read

Panasonic's KX-TG6400 series sits at the heart of Panasonic's Digital Enhanced Cordless Telecommunications (DECT) 6.0 cordless phone lineup, with two-handset bundles priced around $100, or slightly less. We've seen slicker-looking DECT 6.0 cordless phones from other manufacturers, such as V-Tech, but Panasonics KX-TG6400 series is a solid performer with an equally strong feature set. Here are some highlights and impressions we had of the series during our testing of the KX-TG6432, a two-handset model that features a digital answering machine in the base.


Panasonic KX-TG6400

The Good

DECT 6.0 cordless phone system; 1.8-inch LCD on handset; large, rubberized buttons that are backlit; speakerphone on handset; expandable up to six handsets; integrated digital answering machine (on some models).

The Bad

Front of phone attracts fingerprints and oil from your face; not the best looking DECT 6.0 we've seen.

The Bottom Line

Panasonic's KX-TG6400 cordless phone series isn't the slickest-looking DECT 6.0 system available, but the phones are solid performers with attractive feature sets--particularly the higher-end models.

The Panasonic KX-TG6400 series comes in a few different colors, including silver and black, all black, and metallic gray. There's a 1.8-inch LCD that has a light blue backlight that is activated when you touch the keys (we found the screen to be of ample size and easy enough to read, but if you're looking for something a little bigger, the step-up KX-TG7400 series has a 2.1-inch LCD).

We liked the large, rubberized buttons (they, too, get the backlight treatment when pressed) and we found the user interface relatively straightforward and easy to navigate. Our one small gripe is that the top of the phone is made of shiny plastic and is prone to showing fingerprints and any oil from your face that may build up when using the phone. This isn't a big deal, but you will find yourself having to wipe the phone every few days if you want to keep it clean.

The speakerphone is built into the back of the handset (it sits right in the middle) and the included rechargeable batteries are two 650mAh Ni-MH AAAs that provide approximately 5 hours of talk time and 11 hours of standby time (it takes 7 hours to fully charge the batteries).

The two higher-end models in the series (which includes the KX-TG6432 model we tested) offer Talking Caller ID, Talking alarm clock, Talking battery alert ("Please charge the phone"), call block, silent mode, four-way conference capability, handset-to-base intercom function, ringer ID (you can attach various ringtones to contacts in your phone book), and a speakerphone in the handset. The model we tested did not have a speakerphone or dialpad in the main base unit, but the step-up KX-TG6442T (two handsets), KX-TG6443T (three handsets), KX-TG6444T (four handsets), and KX-TG6445T (five handsets) offer both these features.

The digital answering machine can store up to 18 minutes' worth of messages and any of the handsets registered to the system (up to six) can access the phone book, which allows you to store up to 50 names and numbers. A headset jack and belt clip are included if you want to go hands-free.

All in all, this is a solid feature set for a cordless phone. Just note that the low-end models do not have the Talking Caller ID, alarm clock, or battery alert features, which are kind of cool (particularly the Talking Caller ID).

Here is a chart of all the models in the line:

Model Number of handsets color Answering machine included?
KX-TG6411T 1 Black No
KX-TG6431M 1 Metallic gray Yes
KX-TG6441T 1 Black Yes*
KX-TG6412M 2 Metallic gray No
KX-TG6432M 2 Metallic gray Yes
KX-TG6442T 2 Black Yes*
KX-TG6473PK 3 Silver Yes
KX-TG6413T 3 Black No
KX-TG6423T 3 Black Yes
KX-TG6433M 3 Metallic gray Yes
KX-TG6443T 3 Black Yes*
KX-TG6434PK (blister pack packaging) 4 Black Yes
KX-TG6434T 4 Black No
KX-TG6444T 4 Black Yes*
KX-TG6444PK (blister pack packaging) 4 Silver Yes*
KX-TG6445T 5 Black Yes*
KX-TG6440PK 5 Black/Silver Yes
KX-TGA641T Additional handset Black n/a
*= base includes keypad and speakerphone

DECT 6.0 operates in the 1.9 GHz range and is designed not to interfere with other electronics in your home, such as microwaves, Wi-Fi networks, and baby monitors. It's also supposed to offer extended range (up to around 200 feet), though distance will vary according to obstacles and the material in your walls.

Most DECT 6.0 phones offer similar ranges, but they're not all equal. In our tests, we found that the 6400 series did better than the V-Tech LS6225-2, offering about 10 feet more range before the connection with the base unit died.

Call quality was good and clear overall, though not superloud.

The Panasonic 6400 series may not be the sexiest DECT 6.0 cordless phone out there, but it's got a nice feature set, large, backlit buttons, and offers good performance. We have no problem recommending it.


Panasonic KX-TG6400

Score Breakdown

Design 8Features 8Performance 8