Best Sinus 12 2026

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Last Updated - 27.03.2026

Best Choice

01

Gigaset

Gigaset Comfort 520HX – DECT Handset with Charging Cradle – Elegant Cordless Phone for Router and DECT Base – Fritzbox Compatible, Best Audio Quality with Hands-Free Function, Titanium Black

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21% Off
9.9

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile connection options – connection with separately available or already existing common routers with DECT/CAT-iq functionality, e.g. AVM FRITZ!Box, Speedport or as an extension of your system with a Gigaset DECT base – a red or DECT base is required.
Technology meets design – The Gigaset Comfort 520 impresses with its elegant, timeless design, the 2.2 inch (5.6 cm) colour display and low weight – ideal for your home or home office.
Quality made in Germany – designed and manufactured in Germany – the environmentally friendly Eco DECT technology ensures reduced energy consumption – the Gigaset Comfort 520 series is an Amazon exclusive product.
Convincing functions – Make calls and hands-free calls in brilliant HD quality – headset compatibility via 3.5 mm jack connection – comfort call protection for 150 numbers – large address book.
Box contents: 1 x Gigaset Comfort 520HX handset, 1 x charging cradle, 1 x power supply, 2 x AAA batteries (NiMH), 1 x battery cover, 1 x belt clip, 1 x user manual (English language not guaranteed).

49,99 € 62,99 €(21% Off off)
02

Deutsche Telekom

Sinus CA 37 Duo

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9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Standby time: 200 hours. Talk time: 10 hours.
Menu controlled user guide in German, English and Turkish
Illuminated 12-digit dot matrix display with two-line icon display
Box contents: (Sinus CA 37 Duo, 2 handsets, base station with power supply, charging cradle with power supply, 4 x NiMH AAA battery, 500 mAh, TAE connection cord, instruction manual)
Automatic adjustment of the transmission power (full ECO mode)

49,95 €
Value for Money

03

Deutsche Telekom

Telekom Sinus 12 cordless landline phone cordless in black, 5 cm colour display, illuminated keyboard. Connection-independent use on all standard routers and standard connections

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31% Off
9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

With base for use with standard connection.
Initial installation wizard for easy installation
Ergonomic shape and intuitive keypad layout with multifunction button
Convenient signalling of new calls, hearing aid compatibility
5 cm colour display and simple user interface

33,00 € 48,05 €(31% Off off)
04

Deutsche Telekom

Telekom Speedphone 12 Wireless Landline Phone For Use With Current Speed Ports, 5 cm Colour Display, High Voice Quality, Awarded The Blue Angel

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

No cable connection to the speed port required - can be set up flexibly.
Initial installation wizard for easy set up.
High voice quality – rich, clear and natural sound during phone calls.
Ergonomic shape and intuitive key layout with multifunction button.
Clear 5 cm colour display with a simple user interface.

33,00 €
05

Deutsche Telekom

Telekom Speedphone 12 Wireless Landline Phone For Use With Current Speed Ports, 5 cm Colour Display, High Voice Quality, Awarded The Blue Angel

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31% Off
9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

No cable connection to the speed port required - can be set up flexibly.
Initial installation wizard for easy set up.
High voice quality – rich, clear and natural sound during phone calls.
Ergonomic shape and intuitive key layout with multifunction button.
Clear 5 cm colour display with a simple user interface.

33,00 € 48,05 €(31% Off off)
06

Deutsche Telekom

Telekom Sinus A12 Landline Telephone 4082359

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26% Off
9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Wide and widely connected: with a battery life of up to approx. 20 hours. Standby: up to 200 hours. and a range of up to 50 m (indoor)/300 m (outdoors).
Tip: Problems can often be solved by briefly disconnecting the base from the mains and the short removal of the batteries.
Simply do not approach: the integrated answering machine can take over if required. With LED signal for new calls
Set environmental standards with the Blue Angel: energy-saving, low-radiation and recyclable. Environmentally friendly landline telephone with ECO MODE for automatically adjusted transmission power.
SIMPLE & SOUNDFUL: Simple design and full sound - that's how comfortable we make calls today. With 5 cm TFT display, ergonomic shape and intuitive operation.
Note: When delivered, the handset is already logged in to the base station. Your phone is ready to work immediately after commissioning
Many family-friendly functions: phone book (up to 100 entries), redial, call history, alarm clock and room monitoring (baby function).
Complete set: cordless phone Sinus A12 handset + base station including answering machine in white, 2 AAA NiMH batteries, energy-saving power supply with cable (approx. 3 m), TAE connection cord (approx. 3m), instructions (English language not guaranteed).
CERTIFIED TO DECT-CAT-iq STANDARD 2.0: With base for use on the standard connection. Can also be operated on any router or directly on your Telekom Speedport (e.g. Speedport Smart (3) or Speedport Pro Plus) in conjunction with an IP connection. Expandable with 4 additional handsets/speedphones.

46,91 € 63,30 €(26% Off off)
07

Deutsche Telekom

Telekom Expansion Pack Sinus 207 Pack schwarz, Handset and Charging Cradle

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29% Off
8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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40316576

21,95 € 31,05 €(29% Off off)
08

Gigaset

Gigaset AS690HX - cordless phone for Router & DECT Base, Fritzbox Compatible,- hands-free function, large display, large buttons - landline phone, black

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25% Off
8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile connection options – connection to all standard DECT base stations. -
Strong functions – brilliant sound quality (also when hands-free calling), 5-level volume control, phone book for 150 contacts, call protection for 32 stored numbers, ergonomic keyboard
Quality made in Germany - designed and manufactured in Germany - the environmentally friendly Eco DECT technology ensures reduced energy consumption
Box contents: 1 x Gigaset AS690HX handset, 1 x charging cradle, 1 x power supply, 2 x AAA battery (NiMH), 1 x battery cover, 1 x user manual (English language not guaranteed)
A reliable companion – the Gigaset AS690HX impresses with a high-contrast display for best readability – thanks to the jumbo mode, all digits are displayed extra large when selected

29,99 € 39,99 €(25% Off off)
09

Gigaset

Gigaset AS690A - cordless phone with answering machine - DECT phone with hands-free function, large display, large buttons - landline phone, white

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24% Off
8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

gigaset From phones landline phone simple phone handsets with answering machine dect analogue phone easy operation home phone large display glossy phone white graphic display phone wireless cordless phone as690
Strong functions: integrated answering machine with up to 20 minutes recording time, brilliant sound quality (even when hands-free calling), 5-level volume control, call protection for 32 lock numbers
Quality made in Germany – designed and manufactured in Germany – the environmentally friendly Eco Dect technology ensures reduced energy consumption
Easy installation – simply connect the base station to the wall phone socket and start making calls directly – benefit from a quick and easy setup of your new phone
Do you have any questions about this product? Contact Gigaset customer service at 02871-912 912 (for your provider's landline tariff)
Box contents: 1 x base station Gigaset AS690A with integrated answering machine, 1 x Gigaset AS690 handset, 1 x power supply, 1 x telephone connection cable, 2 x AAA batteries (NiMH)
A reliable companion – the Gigaset AS690HX impresses with a large, high-contrast display and ensures best readability thanks to the extra large number display in dial mode. Only compatible in Germany - more information on the Gigaset homepage.

34,99 € 45,99 €(24% Off off)
10

CELLONIC

CELLONIC, Battery Compatible with Telekom Speedphone 12, Speedphone 11, Speedphone 10 (1000 mAh, 2 x 1.2 V) Replacement Battery 2 x AAA Micro LR03

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8.2

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

SMART & COST EFFICIENT CHOICE - Replacing the battery will extend the life of your device and reduce downtime. A reliable alternative to a complete new purchase with consistent performance
PREMIUM PERFORMANCE & LONG LIFE - High quality NiMH cells ensure stable and long-lasting energy. Ideal as a replacement or additional battery, minimises charging pauses and extends talk time
PERFECT FIT & WIDE COMPATIBILITY - Replacement battery designed for a seamless compatible with Telekom Speedphone 12, Speedphone 11, Speedphone 10, Sinus 206. The full compatibility list can be found in our product description
High capacity - Rechargeable battery 1000 mAh with efficient and durable power supply. Strictly tested for excellent performance, long life and consistent reliability
DESIGNED FOR RELIABILITY - Tested to strict German standards for durability and efficiency. A cost-effective alternative to original batteries with strong performance without a high price

6,90 €