side lock key, separate speed dial keys for two family members
2,31" QVGA (240*320)
SIM type and quantity
Dual SIM (mini SIM)
GSM 850/900/1800/1900 MHZ
Li-Ion, 1000 mAh (removable)
Phone book
300 contacts
SOS button for emergency calls
programmed for 5 numbers
View all specifications
Where to buy

Practical, convenient, functional. Sigma mobile Comfort 50 Grand is a perfect mobile phone for seniors. 

Comfort 50 Grand is a perfect combination of ease of use and reliability in emergency cases! This model is specially designed and oriented for elderly people, as well as people with impaired vision and hearing. 

The main advantage of Comfort 50 Grand is a carefully thought-out ergonomics of the phone and its functionality: huge convenient buttons on a keyboard, clear contrasting font on a screen, loud sound and an intuitive menu. The phone is maximally adapted for people with hearing impaired. It has a useful function of voice acting of numbers when you press them on a keyboard, subscriber’s phone numbers on an incoming call.

The body of the phone is made of plastic with soft-touch covering. The surface is matte, non-slip, velvety, making it pleasurable to hold in hand. 

Comfort 50 Grand is equipped with an in-built SOS button, which is pressed to automatically make a consecutive call to five predefined numbers and send them SMS messages. This is a very useful feature in cases when the user is in a difficult situation related to deterioration of health or being in danger. 

A 1000 mAh capacitive battery will allow you to continuously communicate on the phone within 10 hours and in standby mode is for up to two weeks. 

The special highlight of the phone is the presence of a side key for locking keys and separate speed dial keys for two family members. 

An attractive classic design of Comfort 50 Grand, good store of battery charge, huge dialing keys with high contrast fonts, FM radio without necessary of use headsets, nice on the touch body. All of them make it a good for everyday use, while having all the basic functions of a modern phone, a huge color screen and a support for two active SIM cards ensure ease of communication.  

GSM 850 900 1800 1900 MHZ
2,31" QVGA (240*320)
Operating system
menu languages: Ukrainian, English, Russian
SIM type and quantity
Dual SIM (mini SIM)
Memory slot
microSD (up to 32 GB)
0,3 Mpx (with a flash)
+ (built-in antenna)
Can run without a headset
Phone book
300 contacts;
1 field per 1 contact;
20 characters in the contact name
Speed dial
Black list
Export & import contactcs
alarm clock, calculator, calendar, audio player, video player, voice recorder, LED flashlight, Bluetooth
SOS button for emergency calls
programmed for 5 numbers
+ (activated by "0" button on the keyboard)
• Ukrainian alphabet on the dial keys
• Very loud incoming call sound
• Side key for locking the keyboard
• Speed dialing keys (from "2" to "9") + 2 additional speed dial keys "M1" and "M2" for the family members.
• A separate key for turning on the FM radio.
• The ability to customize the voice of the incoming number, setting the voice of the key.
Li-Ion, 1000 mAh (removable)
Running time:
- talk-time mode up to 10 hours
- standby time mode up to 12 days
Headphone Jack
3,5 mm
Connector for charger
140*62*16 mm
98 g
Housing color
Housing materials
soft-touch plastic
candy bar (demountable)
In the box
Mobile phone Comfort 50 Grand, battery, USB power adapter, USB cable, User manual (UA/EN), warranty card
12 months
Sigma mobile reserves the right to change the divice technical specifications and configuration without notice.
User manual (UA)
User manual (EN)
Presentation (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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