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Siemens Gigaset

Siemens Gigaset S820A Twin

This item has been discontinued

this product has 41reviews 17questions

Customer rating: 4.6 out of 5 | read 41 reviews or add a review

which best buy 2 years guarantee

Large user-friendly 2.4 inch touchscreen plus convenient keypadAddress book for up to 500 vCard entriesQuick Sync and Bluetooth for contact synchronization

The Siemens Gigaset S820A Twin: A touchscreen hybrid DECT phone delivering outstanding performance

Combining the benefits of a touchscreen with a standard keypad, the Gigaset S820A offers the best of both worlds. And with high-quality features such as Bluetooth, anonymous call silencing, and phonebook synchronisation, in addition to the superior sound quality synonymous with Gigaset phones, it is easy to see why the S820A Duo was rated by Which? as a Best Buy for cordless phones.

Stylish design meets high-quality features

This new hybrid touchscreen phone from Gigaset, delivers on style with a beautifully chic black handset made from the finest materials so you can feel the quality. And the large high-resolution 2.4” TFT touchscreen display allows for convenient navigation through the icon based menu for taking full advantage of the features the S820A has to offer. Use Bluetooth to transfer and synchronise contacts with your files on Outlook, or to pair a Bluetooth headset for effortless hands-free conversations. The Gigaset S820A offers flexibility with an array of customisable features to suit personal requirements, such as call blocking, time-controlled call silencing, and an idle screen configurable to display your top-six functions.

Superior sound performance

It is no surprise that Gigaset phones are continually rated alike by consumers and independent reviewers such as Which? for their sound quality. Their commitment to offering top-quality led to the pioneering development of their HSP technology, capable of delivering better sound quality than normal analogue landline phones. The Gigaset S820A utilises this to facilitate conversations in crystal clear clarity, whether using the handset normally or via the high-quality speakerphone. And the handy side-key can be used to easily adjust the volume while you talk.

For when you’re away

A feature rich integrated answering machine will reliably record messages when you are not available, and with a generous record time of up to 55 minutes there is no need to worry about running out of space. Messages can be accessed remotely from an external line, and you can set up the S820A to notify you by text when a new voicemail has been left. Or if you prefer, simply arrange to forward any incoming calls and texts to your mobile or other number.


No of handsets 2
System can be expanded to 6 handsets in total
Answering machine Yes | Up to 55 Minutes recording time
Phonebook Up to 500 contacts (space for 3 numbers per entry)
Keypad/touchsceen Yes | Yes
Caller ID (Display):
Wall mountable base | additional handsets Yes | Yes
Range indoors | outdoors in metres 50 | 300
Talk time | standby in hours 20 | 250
Warranty 2 years
Advanced Features
Anonymous call blocking/silencing Anonymous call silencing
Repeater compatible


Headset compatible
  • Via Bluetooth
  • Via GAP
Hearing Aid Compatible via Bluetooth
Large buttons/font - | -
Data synchronisation with Outlook via Bluetooth
Picture caller ID
Screen size | Backlit 2.4" | Ja
Colour Yes
Backlit/ Illuminated Keypad
Date & time
Screensavers pre-installed | downloadable Yes | Yes
Out of range indicator | alert Yes | Yes
Low battery indicator | alert Yes | Yes
Space per entry First and last name (max. 16 characters each); 4 Numbers; Email Address; Anniversary with reminder; VIP Ringtone; Picture for Caller ID
Phonebook transfer
Room/baby monitoring
Night Mode
Base Answering Machine
Record time 55
Remote access from outside line
SMS/email notification of new messages
Playback: handset| base Yes | No
Pre-recorded/ personalised outgoing message Yes | Yes
PIN protected
Protection of recording against power failure
Handset locator
Call management & sound
Call transfer between handsets
Call waiting
Conference call
Internal calls (intercom)
Hold | with music Yes | Yes
Last number redial
One-touch loudspeaker
Earpiece volume control 5 levels
Handsfree volume control
Call Duration displayed
List of last...missed calls with time/date 20
List of last...dialled numbers with time/date 20
Two-way recording
Ringtones: melodies| polyphonic | real | downloadable 20 | 3 | 17 | Ja
Technical information
Talk time 20 hours
Standby time 200 hours +
Handset dimensions (mm) 154 x 54 x 29
Base dimensions (mm) 116 x 96 x 63
Charger dimensions (mm) 81 x 80 x 40
Battery type NiMH
Battery size AA
Battery capacity 1300 mAh
Transmission technology DECT & GAP
Frequency band 1.88 to 1.90 GHz
Languages Yes (31)
Why not save up and get great accessories? Select from additional handsets, wireless headphones, or go for extra long range with a DECT repeater

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Main Product
Siemens Gigaset S820A Twin Siemens Gigaset S820A Twin

Top 7 Product Questions for Siemens Gigaset S820A Twin

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of customers would recommend this product
Average Customer Review
more score details
Customers most agreed on the following
Good points
  • Easy to read screen (27)
  • clear voice (26)
  • Lightweight (17)
  • long lasting (12)
  • Big buttons (11)
Bad points
  • maximum volume is low (3)
  • None (2)
  • Ringtones (1)
  • Volume (1)
  • Blank screen in standby mode (1)

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The most helpful favorable review 8 of 8 people found the following review helpful

product reviewsproduct reviewsproduct reviewsproduct reviewsproduct reviews 5/5 I was a little timid about purchasing a hybrid touchscreen phone but this Siemens Gigaset is truly a superior product. "I was lost in the vast array of telephones now available until I spoke to a lovely man at Ligo who patiently guided me to the perfect telephone which provided all the features I needed and some bonus ones too. ... Read the full review › Aug 19, 2014 by Anonymous

The most helpful critical review 22 of 22 people found the following review helpful

product reviewsproduct reviewsproduct reviewsproduct reviewsproduct reviews 4.5/5 Easy to use. "Looks great, sound is fantastic. Delivery was fast. Choice of ringtones isn't good but you can upload new ones. Battery life short if you use the ECO DECT mode" Read the full review › Mar 18, 2014 by Anonymous

read 41 reviews
Product Manuals Siemens Gigaset S820A Twin
Gigaset S820A - User Guide.pdf

Siemens Gigaset S820A Twin
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