Operating system
312 MHz
Screen Size
VGA (640 x 480)

Prices (Where to Buy)

Common Questions

Unknown released the STK R45i on January 23, 2018.

We've got you covered! Download a free PDF copy of the STK R45i user manual here.

Unknown backs up the STK R45i with a 3 Years parts & labour warranty.

If your STK R45i has problems and is still within its warranty period, you could contact Unknown support or the retailer you purchased the phone from. You'll find Unknown's contact information here. If your phone is off warranty and needs repair for a physical problem such as a broken screen or bad battery, you should visit an authorized service centre or a local phone repair shop. You can also connect with others in The Informr Community Forum to find and share answers to questions.

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Screen Size

The STK R45i's screen size is 1.77 inches with 128 x 160 pixels resolution.

312 MHz

There is a Spreadtrum 6531DA 312 MHz processor (CPU).


The phone runs on the Custom Nucleus operating system (OS).

VGA (640 x 480)

You can take photos or capture video with the phone's onboard VGA (640 x 480) camera.

There's no secondary front camera.

32 MB

Internal memory is 32 MB. An external, MicroSD, MicroSDHC (up to 32 GB) expansion slot is available for increased storage capacity.


The phone is powered by a Lithium-Ion (Li-Ion), 600 mAh battery. Unknown's performance ratings are 120 minutes.

STK R45i Specs

Release date January 23, 2018
Regions available UK
SIM card Mini-SIM
Dual SIM Yes
Operating System Custom Nucleus
Processor Spreadtrum 6531DA 312 MHz
Internal Storage 32 MB
Digital compass No
Flightmode No
Hearing Aid Compatible No
Noise Cancellation No
SAR Head: 0.294 W/kg
Body: 0.747 W/kg
Languages English
Manufacturer Warranty 3 Years
Accessories Included AC Charger, Manual, Standard Battery, Headphones
Power & battery
Type Lithium-Ion (Li-Ion)
Battery Capacity 600 mAh
Removable Battery Yes
Wireless Charging No
Fast Charging No
Video Playback Time Unknown
Internet Use (Wi-Fi) No
Internet Use (Celluar) Unknown
Talk Time Up to: 120 minutes
Standby Time Up to: 5 days
Physical Characteristics
Design type Bar
Material Plastic
Colors Black & White, Black & Blue, Black & Red, Space Black
Dimensions [H x W x D] 11.1 x 4.7 x 1.45 cm (4.4 x 1.9 x 0.6 in)
Weight 68 grams
Water Resistant / Waterproof No
Rugged design No
IP Rating No
Antenna Type Internal
Changeable Faceplates No
Display / Screen
Type Color
Technology LCD (TFT)
Colors 262k
Resolution 128 x 160 pixels
Pixel density 121 pixels
Size 1.77 inches
3D No
Secondary Display No
Graphics Wallpapers
Themes No
Backlit Illumination Yes
Zoom / Magnification No
Screen Orientation Lock No
Multi-Touch No
Fingerprint-Resistant Coating No
Additional Display Features
Input / Navigation
Sleep / Wake Key No
Home Key No
Mute Key No
Input Type Standard / 12-key Numeric
Navigation Type D-pad
Predictive Text Entry No
Physical keyboard Yes
Voicemail Key Yes
Any Key Answer Yes
Voice Commands No
Keypad/Screen Lock Yes
External Volume Control No
External Media Playback Controls No
Fingerprint Sensor No
Call Management
Wi-Fi Calling No
Voice over LTE (VoLTE) No
Contact List Capacity 300
Multiple Numbers Per Contact - numbers
Contact Groups Yes
Auto Answer No
Voice Activated Dialing No
Photo Caller ID No
Web / Email / Messaging
Web Browser No
Email Client No
Messaging SMS, MMS
Push-to-talk (PTT) No
USB Micro-USB 2.0
USB OTG Support No
Infrared No
Bluetooth 2.1
Bluetooth Profiles A2DP, AVRCP, OPP/FTP, HFP, HSP
Bluetooth Audio Codecs SBC
WiFi No
WiFi Encryption No
Mobile Hotspot No
Memory Expansion Slot Yes
Expansion Slot Info MicroSD, MicroSDHC (up to 32 GB)
PC Synchronization No
TV Out No
DLNA Support No
UMA Support No
Data Tethering Compatibility No
Java Applications No
Brew Applications No
ECML / Digital Wallet No
PictBridge No
Main Camera
VGA (640 x 480)
Dual lens
Additional Rear Camera Info
Video Recording Formats
3GP / 3GPP
Video Recording Parameters
Front Camera
Additional Front Camera Info
Video Recording Parameters
Audio / Video
Audio Playback Yes
Audio Formats AMR, WAV
Radio Yes (FM)
Video Playback Yes
Video Playback Formats 3GP / 3GPP
Mobile TV No
Streaming Video No
External Speakers Yes
Headset Jack 3.5mm
Custom Ringtones Yes
Vibration Alert Yes
Downloadable Ringtones No
Ringtone Composer No
Ringer ID No
Haptic Feedback Vibration No
Speakerphone Yes
To-Do / Task List No
Calendar Yes
World Clock Yes
Alarm Yes
Stop Watch No
Timer No
Calculator No
Currency Converter No
Document Viewer Yes
Viewable document types PDF
Weather No
Stocks No
Maps No
NotePad No
Voice Memos / Recorder No
Games Yes
Apps No
Included Software / Apps
Additional comments

Built-in Flashlight.

Related Links Manual (PDF)
Where to buy STK R45i
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