Siemens Gigaset SL400A Twin

£166.66 ex-VAT £199.99 inc-VAT
& Free UK Delivery.


For alternatives please phone 03333 44 80 44.

2 year guarantee included
Product Features
  • 1.8” high-resolution TFT colour display
  • Genuine metal frame and keypad
  • Answering machine with up to 45 minutes recording time
  • Data synchronisation
Delivery Options
  • Standard Delivery

    Within 3-5 working days: £2.99 (FREE on orders over £50)

  • DPD Next Day Delivery

    Order before 3pm: £8.99

Product Description

Siemens Gigaset SL400A Twin: Stylish, high-performance digital cordless phones

With the award winning and compact SL400A, Gigaset delivers a top of the range DECT phone that impresses with style and functionality. Featuring a chic genuine metal keypad and frame, which is complimented by a high-resolution 1.8” TFT colour display, this eye-catching and luxurious contemporary phone is testament to Gigaset’s reputation for top-quality cordless phones.

Gigaset SL400A Cordless Phone

Feature rich

Boasting Bluetooth technology, the SL400A can be used to pair each handset with a Bluetooth headset for comfortable hands-free calls, and for easy synchronisation of your contacts with Outlook so you can conveniently keep your phonebook up to date. The SL400A further benefits from an integrated answering machine on the base with up to 45 minutes of recording time; allowing you to record important calls in addition to taking messages when you are not able to answer. Messages can be accessed remotely, and you can also set the answering machine to notify you by text as soon as a new message has been left so you can keep in touch even when you’re away.

Impeccable performance

Endorsed by Which? and consumers alike in response to the superior sound quality of the SL400; calls can be enjoyed in crystal-clear clarity free from feedback echoes and interference, even when using the hands-free loudspeaker. Each handset benefits from vibrate so you can set the ringer to silent and still be notified of incoming calls. And with a generous talk time of up to 14 hours, and dependable range of up to 50 metres indoors (300 outdoors), the SL400A provides reliable performance around the home or office.

Gigaset Made in Germany

Made in Germany

All of Gigaset’s phones are manufactured from their factory in Bocholt, Germany, and they pride themselves on the quality of their goods. As a top of the range model, the SL400A has been built from the finest materials and has undergone rigorous testing to ensure that it meets Gigaset’s exacting criteria for excellence. As an object of design as well as a function, the SL400A has been made to impress those who demand the best.

Additional Information

SKU 11203
MPN sl400a/2
EAN 4250366818108
Manufacturer Gigaset
Condition New
Manufacturer Warranty 2 Years
Number of Handsets Two
Answer Machine Yes
Talk Time (Hours) 14
Standby Time (Hours) 200
Answer Machine Recording Time (Minutes) 45
Phonebook Entries 500
Big Buttons No
Bluetooth Connectivity Yes
Caller ID Yes
Nuisance Call Blocker No
Call Timer on Display Yes
Call Transfer Between Handsets Yes
Call Waiting Yes
Conference Call Yes
Call Duration on Display Yes
Internal Calls Between Handsets Yes
Last Number Redial Yes
Hands-free Speaker Yes
Mute Button Yes
One-Touch Loudspeaker Yes
Record Personal Greeting Yes
Predefined Outgoing Message No
Repeater Compatible to Increase Range Yes
Automatic Contact Sharing Between Handsets No
VOIP Compatible No
Volume Control Yes
Wall Mountable Base Unit Yes
2.5mm Headset Jack No

Delivery and Returns

We offer a range of delivery options, depending on the product you’re buying and where you would like your order delivered. Find out more about our delivery options and returns policy below.

Standard/Free Delivery

Free UK mainland delivery is available on eligible orders over £50. The Standard Delivery charge for orders under £50 is £2.99. Please allow 2-3 business days for delivery.

DPD Next Day Delivery

Available on selected products for only £8.99. Order must be placed before 3pm to ensure same day dispatch.

DPD Weekend Delivery

Available on selected products for only £11.99. Order must be placed before 3pm on Friday to ensure same day dispatch.

For more details please call 03333 44 80 44.

Returns Policy: Our Fuss Free Returns policy means you have an extended period of up to 30 days to notify us if you wish to cancel your order or exchange an item. For more information on our returns policy please click here.

Christmas Extended Returns Policy: Purchases made from the 18th November can be returned for a refund or exchange up until the end of January 2022. For further information our Customer Services are available Monday to Friday by phone 03333 44 80 44, email, and LiveChat.

Ratings & Reviews

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Most Helpful Customer Reviews
  • 15 of 23 people found the following review helpful

    The sl400a first impressions

    The first thing that i will say about the SL400 phones is that they are not cheap, after having numerous BT branded phones (that were of dubious quality) and a few Binatone phones(that were even worse) over the last few years i thought it was time to bite the bullet and splash out on what i can only describe as one of the best phones i have ever seen or used.

    The first thing that you notice about the phones as you unpack them is the weight and build quality, they comprise of a nice chromium plated solid metal frame and a metal keypad similar to the laser cut key pads of the Motorola Razr. The batteries install easily and are of the flat lithium-ion type you find in mobile phones. Once the batteries are installed and the shiny black back is clipped on you realise that all that chrome and shiny black is going to show up all the fingerprints. Belt clips are supplied as an option if you want to use them and do not really detract from the overall design of the phone.

    Once the screen bursts into life the display quality is excellent and is as good as or better than some mobile phone displays. The phone cradles are also well made with a removable power connector that clips into the base. The cradles/charging stations did initially seem rather light but once the handsets are dropped in they appear to be stable and the rubber feet stop them from slipping.

    The answer phone base unit again was a surprise the size is quite minute compared to some, the unit can be wall mounted and is also supplied with a rather nice clip on back that holds the power connector and telephone cable in place. Once plugged in the handsets registered with no problems.

    Setting up the phones was a doddle, the use of the Bluetooth made it possible to transfer my entire directory from my Sony-Ericsson to the one handset, the directory was then copied to the additional handsets using the copy facility. The layout of the menu was simple and similar to that of a mobile phone.

    It's too soon to comment on the standby battery life as the manual states 230 hours although this will only be achievable after a few charge discharge cycles.

    Having only really used the most basic features of the phones and answering machine i am totally impressed and wish i had brought a decent set of Siemens phones instead of all the cheaper models. As these phones come with a two year guarantee Siemens have covered all the bases.

    So if anyone is thinking of getting a set of the SL400 phones all i can say is go ahead, i don't think you will be disappointed and in many ways, you get what you pay for. On a final note the service from LiGo was excellent.

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  • 1 of 1 people found the following review helpful

    A cut above the rest...very good phones indeed

    These are without a doubt the best phones that we have ever had the pleasure of using. I was hesitant about shelling out so much for a pair of landline phones, but I replace my mobile gets replaced every year with no qualms and I expect these to last for many years to come. My wife fell in love with them as soon as we opened the box - the handsets have a nice weight to them and they feel very well-made not to mention look stylish with the quality metal finish.\nAudio on them is absolutely astoundingly clear, even on hands-free, which is a definite plus. The ringer could be louder, but this has just given me occasion to carry one about in my pocket with the vibrate on (the battery on it seems to last forever).\nBluetooth was extremely useful in helping me to update the address book. I haven\'t yet added photos to my contacts, though may decide to do so in future. At the moment, the analogue clock screensaver suits me fine.\nAll in all, we have been mightily impressed, and I would highly recommend to anyone looking for good quality cordless phones

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  • 0 of 0 people found the following review helpful

    Great phones, shame about service this time.

    Product is excellent. Offered on web with discounted "next day delivery" then 2 days after expected delivery advised that product "out of stock". On t/c advised that next day charge would be re-funded. When in stock further day later I requested prompt delivery - arrived 2 days later but I never did receive "next day" charge refund.

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  • 0 of 0 people found the following review helpful

    A neat little package

    A pleasure to due business with LiGo who kept us informed every step of the way from order to delivery.

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  • 0 of 0 people found the following review helpful

    Siemens Gigaset sl400a cordless phone

    This is a smart, easy to set and excellent quality 'phone. We had a predecessor of this and it was great for many years but eventually it started to go wrong. This replacement is far better and easier to set up.

    LiGo were excellent with their advice and support - it is easy to thoroughly recommend them.

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