stylish and functional with Dual SIM support
2,8'' QVGA (240*320)
SIM type and quantity
Dual SIM (mini SIM)
GSM 850/900/1800/1900 MHZ
Li-Ion, 800 mAh (removable)
Phone book
500 contacts
View all specifications
Where to buy

Slim and stylish X-style 28 Flip in the form-factor «folding».

Sigma mobile X-style 28 Flip phone completely responses the considerations of: stylishness, elegance, sophistication, functionality, quality, available price.

Pleasant coolness, laconic shapes and sophisticated body lines, laser engraving keys fascinate you from the first moment of getting acquainted with this phone.

A wide range of colors includes classic black, refined gold-mocha, elegant blue and stylish red allows you to choose the option, which best responses your taste. And the design of the body in the folding form-factor still remains «in style».

X-style 28 Flip is the phone, which you want to hold in hand!

The phone is equipped with a color display with 2.8 inches with 240×320 pixels per inch separate ability, on the key panel besides a phone dialer there are separate keys for access to applications: messages, camera, phone book, FM radio.

X-style 28 Flip supports the operation of two SIM cards miniSIM, and a slot for microSD card of up to 32 GB is provided to increase the memory.

The phone operates on mobile networks GSM standard, and wireless file transfer is provided by a built-in Bluetooth 3.0 module. The presence of a phonebook for 500 contacts and an organizer, which consists of an alarm clock, calculator, audio and video players, voice recorder, E-book provides comfortable use of the phone in everyday life. A LED indicator on the body always notifies user about an incoming call or SMS, a missed call, and is also activated when the phone is connected to the charger device.

GSM 850 900 1800 1900 MHZ
2,8'' QVGA (240*320)
Operating system
menu languages: Ukrainian, English, Russian
Spreadtrum SC6531CA
SIM type and quantity
Dual SIM (mini SIM)
Memory slot
microSD (up to 32 GB)
0,3 Мpx (with flash)
(interpolation up to 1.3Mpx)
+ (earphones are used as an antenna, headset is not provided)
Phone book
500 contacts;
1 field per 1 contact;
40 characters in the contact name
(ability for creating contact groups)
Speed dial
Black list
Export & import contactcs
alarm clock, calendar, calculator, audio player, video player, voice recorder, e-book reader
Audio format support
Video format support
+ (is activated by "0" button on the key pad)
Ukrainian alphabet on the dial keys
Light Indicator for missed calls
Separate access keys for applications
Li-Ion, 800 mAh (removable)
- talk-time mode up to 6 hours
- standby time mode up to 5 days
Headphone Jack
3,5 mm
Connector for charger
110*55*13,6 mm
103 g
Housing color
Housing materials
In the box
Mobile phone X-style 28 Flip, battery, USB power adapter with microUSB (non-detachable) cable, wired earphones, 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)
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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