• big dial buttons
• contrast font
• SOS emergency call key
1,77'' QVGA (128*160)
SIM type and quantity
Dual SIM (mini SIM)
GSM 850/900/1800/1900 MHZ
Li-Ion, 800 mAh (removable)
Phone book
500 contacts
alarm clock, calculator, calendar, world clock, bluetooth, audio player, video player, voice recorder
View all specifications
Where to buy

Simple, compact and convenient Comfort 50 Basic is the perfect decision for undemanding users.

Huge keys with contrasting fonts and soft pressing will surely attract the attention of elder generation because keys create a comfortable feeling from using the device.

The phone has basic functionality that is sufficient for daily use: making and receiving calls, sending and receiving SMS, setting of an alarm clock, using a calculator, and creating calendar events.

The features of this device are:

  • LED flashlight, which is switched on and off by an independent switch button located on the right face side of the phone;
  • A built-in antenna that allows you to listen to FM radio without headphones;
  • SOS buttons on the back of the body that allow you to make calls and send SMS messages to five programmed subscribers in an emergency (a function of sending emergency SMS may be switch off in the settings);
  • privacy settings: protection against unauthorized access to a phonebook, call logs and messages, and others.

Comfort 50 Basic is equipped with a color contrasting screen with 1.77 inches with 128×160 pixels separate ability, on the dial keys there are three options of alphabets – Ukrainian, English, Russian.

The phone allows you to communicate with two mobile operators at the same time, thanks to the support of two mini-SIM cards of GSM standard. A microSD slot for memory cards up to 32GB is provided for downloading and storing files.

Wireless transmission and image sharing are provided by a built-in Bluetooth module.

The Phonebook of Comfort 50 Basic allows you to record up to 500 contacts in the phone’s memory, assign your own ringtone for call and SMS. Phonebook settings also have speed dialing features, adding unwanted contacts to the blacklist, recording contacts to existing groups, and as well as creating your own contact groups.

Device’s autonomy is provided by a removable 800 mAh battery. This charge is enough for continuous communication within 10-11 hours in a row, and in standby mode – up to a week.

Comfort 50 Basic is an excellent phone option for both elderly people and students, as it is very simple and functional and as well as has a SOS key for emergency cases.

GSM 850 900 1800 1900 MHZ
1,77'' QVGA (128*160)
Operating system
menu languages: Ukrainian, English, Russian
Spreadtrum SC6531E
SIM type and quantity
Dual SIM (mini SIM)
Memory slot
microSD (up to 32 GB)
0,3 Mpx
+ (built-in antenna)
Can run without a headset
Phone book
500 contacts;
1 field per 1 contact;
20 characters in the contact title
Speed dial
Black list
Export & import contactcs
alarm clock, calculator, calendar, world clock, bluetooth, audio player, video player, voice recorder
SOS button for emergency calls
programmed for 5 numbers
Activated by an independent side-bar button. Can run while the phone is switched off
• Ukrainian alphabet on the dial keys
• Big backlit buttons
• Anti-Thief feature
Li-Ion, 800 mAh (removable)
Running time:
- talk-time mode up to 11 hours
- standby time mode up to 7 days
Headphone Jack
3,5 mm
Connector for charger
114*55*13 mm
73 g
Housing color
Housing materials
candy bar (demountable)
In the box
Mobile phone Comfort 50 Basic, battery, USB power adapter with microUSB (non-detachable) cable, User manual (UA), Warranty card
12 months
Sigma mobile reserves the right to change the divice technical specifications and configuration without notice.
User manual (UA)
Conformity certificate (UA)

Sigma mobile company guarantees a high quality and faultless functioning of their devices upon conditions of careful usage and considerations of exploitation rules.

After the expiration of device’s service term, we advise you to contact the Authorized Service Center for preventive maintenance and receiving recommendations for the further exploitation of device. In order to prevent possible misunderstandings, it is preferable to keep the documents that are attached to the device upon its sale (sale receipt or cashier’s receipt, instruction of exploitation, warranty card) during the service term. A warranty card establishes warranty liable for device to the extent, provided by the Law of Ukraine On protection of consumer’s rights.

Warranty conditions

  • A warranty provides free repair or replacement of the device during the warranty term. Warranty service is only provided in the presence of a valid warranty card and fiscal check.
  • The renewal of software is a technical maintenance of the product and is not considered as repair and thereforeis not a valid reason for a replacement or a refund;
  • The Periodic service of device (replacement of batteries, cleaning, etc.) is carried out by request for an additional fee.
  • The warranty term for main devices and accessories is set by Sigma mobile with reference to from the date of device’s sale (look at Table 1).
  • Service term is established by Sigma mobile company in reference to the date of the device’s purchase (look at Table 1).
  • Warranty service is provided exclusively at  Authorized Service Centers in Ukraine. The sheet of service centers may be changed



Warranty terms

Service term

Mobile phones series X-treme Main deviceEighteen months

Three years

Mobile phonesMain deviceTwelve months
TabletsMain deviceTwelve months
Action camerasMain deviceTwelve months
Bluetooth headsetsMain deviceTwelve months
Accessories and batteriesRechargeable batteries (including built-in types)Six months

Two years

Memory cards, cables, headsets and other accessories and parts, which don’t requare to disassemble the mobile device in order to replace.

One month

Table 1

The manufacturer shall not bear warranty obligation regarding the device in the following cases:

  • Violations of rules and conditions of exploitation, adjustment, installation of device, described in the User’s Manual and other documentation, which is transported to the consumer in the complete set with the device;
  • If mechanical damages have occured after the transfer of the device to the consumer;
  • The ingression of inappropriate items, liquids, insects, etc. inside the device during usage;
  • Device’s operation in conditions of excessively high or low temperature, surrounded by high humidity, high dust content;
  • Making schematic-technical, design or software changes, not approved by the manufacturer;
  • Repair or modification of device, performed by unauthorized persons;
  • If the damage is caused by the use of non-standard and/or non-qualified expandable materials, charging devices, spare parts, batteries, electronic media, software products that were not supplied or recommended by the manufacturer;
  • If the damage (defects) is caused by the action of computer viruses or similar programs;
  • If the damage (defects) is caused by non-compliance with standards or technical regulations of the power, cable, telecommunication networks, radio signal power, including features of the relief and other similar external factors, usage of the device on the edge or outside of a network action zone, connection to inappropriate or defective external devices;
  • If the defect occurred due to natural wearing down during the exploitation of the device. In this case, natural wearing down is understood as the consequences of product’s operation, which caused the deterioration of technical status and appearance due to long-term using of this device;
  • If the damage of LCD pixels of screens does not exceed 0.0005 percent of the total quantity of pixels on the screen (according to the ISO 9241-303)
  • The occurrence of force majeure (natural phenomena, fire, lightning, etc.).


The manufacturer shall not carry warranty obligation:

Under no circumstances are the manufacturer or its authorized organizations for unusual, incidental, direct or indirect damage (or losses), including, but not limited to, lost profits, loss or inability to use information or data, expenses of recovering information or data, damages caused by interruptions in commercial, manufacturing or other activity, arising in connection with the usage or inability to use a device.

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