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Siemens Gigaset SL400 / SL400A / SL400H

alaTest has collected and analyzed 991 reviews of Siemens Gigaset SL400 / SL400A / SL400H. The average rating for this product is 4.2/5, compared to an average rating of 4.0/5 for other Cordless Phones for all reviews. People really like the reliability and price. The design and size are also mentioned favorably.

usability, size, design, price, reliability

We analyzed user and expert ratings, product age and more factors. Compared to other Cordless Phones the Siemens Gigaset SL400 / SL400A / SL400H is awarded an overall alaScore™ of 81/100 = Very good quality.

Review analysis

(Based on 991 reviews)

Expert Reviews  

User Reviews  

Showing 136 review(s)

Expert Reviews User Reviews


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Showing 1 - 105 of 136 Show Reviews: in English | in other languages (855)

Consumer review by: ( review summary for Siemens Gigaset SL400 / SL400A / SL400H


alaTest has collected and analyzed 95 user reviews of Siemens Gigaset SL400 / SL400A / SL400H from The average user rating for this product is 4.4/5, compared to an average user rating of 4.1/5 for other Cordless Phones on Reviews about the reliability and size are on the whole positive. The design and usability also get good feedback, whereas views are divided on the price.

usability, design, size, reliability

91% of the reviews on give this product a positive rating.

This summary is based on the products: Gigaset SL400A Single DECT Bluetooth Cordless Phone - Black / SilverGigaset SL400A Single DECT Bluetooth Cordless Phone - Black / Silver

Oct, 2017

Expert review by: (

Gigaset SL400A single review

  (Rating Hidden)

Sleek, compact and Bluetooth enabled the Siemens Gigaset SL400A is a premium digital cordless phone. An attractive design object with an integrated answering machine and a host of advanced features including: a large phonebook, hands-free speakerphone...

Nov, 2010

Consumer review by: RACatalina (

Great phones, but...

  (Rating Hidden)

We bought 2 Gigaset SL400A twins, as we need four phones and couldn't find anyone selling the quad version. They are great phones, which are very easy to use and set up. One of our main reasons for choosing them was the ability to transfer contact...

Apr, 2013

Consumer review by: 1960sgirl (

Beautifully designed phone

  (Rating Hidden)

i'm very pleased with this phone. It is beautifully designed and made and for me, being able to site the phones anywhere in my house without the need for installing phone cable runs is really important. The sound quality is excellent, and the...

Oct, 2011

Consumer review by: Peter (

Siemens Gigaset SL400A


The charger cradle is totally separate from the transmitter. So you can have the transmitter hidden away next to the phone line connection point, and the charger cradle somewhere handy, in a different room Can send & receive texts just like a mobile

Mar, 2016

Consumer review by: Paula (

Siemens Gigaset SL400A


Feels like a quality product. Looks good. Separate base to phone stand is good

The volume is too low if background noise in room where phone is being used. Speakerphone echoes your voice

Feb, 2016

Consumer review by: Anthony (

Siemens Gigaset SL400A


The clarity and clearness of conversations no matter where in the world the calls are made.

No bad points

Dec, 2015

Consumer review by: REYNOLDS (

Siemens Gigaset SL400A


It's like having a mobile phone,light,slim loads of extras on it.

Oct, 2015

Consumer review by: Stephen (

Siemens Gigaset SL400A


Great build quality and battery life

Dec, 2014

Consumer review by: carol (

Siemens Gigaset SL400A


Clear reception whether your calling out or receiving a call

Dec, 2014

Consumer review by: Elena (

Siemens Gigaset SL400A


Lightweight and nice looking phones. We like the screen saver as a clock also. Have not used all the features yet as was bought for us as a Christmas box

Expensive for what they are, but we do like them

Nov, 2014

Product Specifications

Packaging Content

Charger: Yes


GAP compatible: Yes