• Description

    The slimmest designer phone with highest technology

    Introducing telephony’s newest pocket-sized design object: the Gigaset SL400. With a genuine metal frame and illuminated keypad, this home telephone adds a touch of luxury to your home. A large colour display in highest quality is easy on the eyes – and its Bluetooth® headset connection offers you comfortable conversations. Names and numbers of your friends, family and important contacts are easy to manage in the generous address book with space for up to 500 vCard entries. And keeping it up-to-date is simple with synchronisation via Bluetooth® or mini-USB. ECO DECT technology means you use less energy and save money with the Gigaset SL400 – while also reducing radiation.

    The Gigaset SL400 – the slim, pocket-sized phone with cutting-edge features, precious materials and innovative slim design – perfectly fits your home.

    Gigaset SL400First-class materials
    Only the best: the Gigaset SL400 features a genuine metal frame, giving home telephony a high-end aesthetic and luxurious touch. The illuminated authentic keypad not only looks great – it also helps you find the numbers you need with ease. Equipped with the best – inside and out – the Gigaset SL400 reaches new heights in home telephony.

    Customisable colour display
    Despite its slender stature, the Gigaset SL400 boasts a large 1.8” high-resolution TFT colour display, which makes reading and navigating simple. Love to personalise things? Upload photos of your friends and family – then assign them to the appropriate telephone numbers. Next time they call, the picture caller ID2; feature shows the corresponding photo on the display. Alternatively, set uploaded pictures as your screensaver – or use slide show feature for a personal viewing session.

    Focus on your favourites
    Via expert mode, customise the menu view to include the features you regularly rely on. The simplified features’ list makes it easy for you to find the functions you truly use and need every day – and the rest are simply hidden from your sight.

    Store all your contacts
    There’s plenty of room for everyone in the Gigaset SL400’s address book: it has space for up to 500 vCard entries. Simply enter in the names and numbers of your circle of friends & family – and they’re at your fingertips when you need them.

    Bluetooth and QuickSyncComfortable Bluetooth® features
    From a headset connection to address book updates, the Gigaset SL400’s Bluetooth® technology keeps you connected. With the Bluetooth® headset connection, just connect your compatible headset and savour the comfort of hands-free calls. Enjoy effortless synchronisation via Bluetooth® or mini-USB to keep your address book current. 

    More phoning pleasure
    Lengthy calls are easy on the Gigaset SL400. It has a generous talk time of up to 14 hours and a standby time of up to 230 hours. Select from four hands-free options for flexible calling in brilliant sound quality. Personalise the sound of your Gigaset SL400 by selecting the ringtone that fits your style – or select the handset’s vibracall feature, which vibrates to indicate an incoming call.

    green home logoECO DECT: Pure energy savings and radiation-free1
    The energy-saving power supply of the Gigaset SL400 consumes less electricity3, so it’s kinder to the environment, and kinder to your wallet. Like all Gigaset cordless phones, it variably reduces the transmitting power from the handset to base station depending on their distance apart. You can also reduce the transmitting power of the Gigaset SL400’s base station by 80%4 simply by selecting the ECO Mode. Furthermore, radiation-free5 ECO Mode Plus turns off the transmitting power when the phone is in standby.

    If you’re looking for a genuine designer phone with the highest technological features, then the Gigaset SL400 is the perfect telephone for your home.


    Environmental Product DeclarationOur environmental mission
    We at Gigaset Communications GmbH have a responsibility to society. View our Environmental Product Declaration for the Gigaset SL400/SL400A.
    Download (pdf)
  • Specifications
    Convenience - phoning essentials
    Bluetooth® function | Mini-USB | Micro-USB yes | yes
    Dial by voice command -
    Automatic redial function in handset yes
    Last dialed ... numbers 20
    Phonebook transfer: via DECT | via Bluetooth® | via LAN yes | yes | -
    Phonebook | address book | entries - | yes | 500
    Standby time | talk time 230 h | 14 h
    Room monitoring yes
    Vibracall yes
    Live recording of calls -
    Calendar yes
    Date reminder function | alarm call yes | yes
    Plug-and-play installation yes
    Range indoors | outdoors 50 m | 300 m
    Display and menu features
    Charging status displayed yes
    Display of caller’s number (CLIP) | picture (Picture CLIP) yes
    Call duration displayed yes
    Call charge displayed -
    Range displayed (handset to base station) yes
    Date displayed yes
    Time displayed yes
    List of last … missed calls with time and date 20
    Display of caller’s number (CLIP) | picture (Picture CLIP) yes | yes
    Easy-to-use text-based menu | jumbo fonts | icon-based yes | yes | yes
    ... pixel, ... inch, ... colours and ... lines TFT 128 x 160\, 1.8''\, 65000\, 8
    Display: illuminated | colour yes | yes
    Display: numeric | alphanumeric | semigraphical | graphical - | - | - | yes
    Multilingual menu for up to ... languages 21
    Up to 60% less power consumption yes
    Transmitting power at almost zero when handset docked yes
    Radiation-free ECO Mode Plus yes
    ECO Mode for reduction of transmitting power of base station by 80% yes
    Keypad features
    Navigation key yes\, 5-way
    Message indicator key yes
    Colour of illumination white
    Illuminated keypad yes
    Messaging functions
    Up to … characters SMS | Email 612 | yes
    Up to ... personalized SMS in-boxes 4
    Email notification yes
    Wall mountable yes
    Warranty 2 years
    Batteries Li-Ion -accu
    SAR Value
    Gigaset Handsets < 0.1 W/kg
    Equipped with speech transmission encryption yes
    Sound quality
    Hands-free talking | convenient hands-free | advanced hands-free - | - | yes
    Headset connection | corded 2,5 mm | Bluetooth® yes | - | yes
    Adjustable handset volume yes
    Individual ringer melodies for VIP entries yes
    HSP™ for brilliant sound quality yes
    HDSP™ ready handset yes
    Ringer melodies | polyphonic | real sounds I downloadable 5 | 3 | 15 | yes
    Technical data
    Standards DECT | GAP yes | yes
    Dimensions handset (H x W x D in mm) 120.8 x 46 x 16
    Dimensions base station (H x W x D in mm) 117 x 115 x 47
    Dimensions charger (H x W x D in mm) 49 x 126.2 x 60.5
    Available colours metal/piano black
  • Accessories
    • Gigaset L410
      Gigaset L410
      • Clip on and move with more flexibility
        while you call
      • Hands-free talking in perfect sound quality
      • One-click call transfer from handset1 or take calls directly on clip
      • ECO DECT features2
    • Gigaset SL400H
      Gigaset SL400H
      • Luxurious materials – genuine metal frame and illuminated keypad
      • Generous colour display with intuitive user interface
      • Convenient Bluetooth® headset connection
      • ECO DECT with no radiation1
    • Gigaset ZX530
      Gigaset ZX530
      • Crystal-clear sound 
      • Up to 5 hours of talk time
      • Up to 120 hours of standby time
  • Video
  • Support
  • 1 The DECT transmitting power is switched off when handset is in idle mode – when all registered handsets support ECO Mode Plus.
  • 2 Dependent on country/network/operator
  • 3 Compared to conventional Gigaset base stations.
  • 4 For all registered handsets – in comparison to when ECO Mode is not activated and to our conventional cordless phones.
  • 5 The DECT transmitting power is switched off for all registered handsets – when all support ECO Mode Plus.

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