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Armasight Sidekick 640 Mini Thermal Monocular

  • $2,999.00
  • $3,499.00
- $500.00

These units are on a short backorder of ~3 weeks estimated.


The Sidekick 640 is the smallest fully multi-functional 12-micron 640 thermal imaging monocular on the market. This unit boasts a fast 60Hz frame rate for smooth operation and industry-best, outstanding visual acuity, based on Armasight’s Iron Wolf thermal technology platform. Weighing under 250 grams, the Sidekick can be used as a handheld mini-monocular or can be headset/helmet mounted utilizing the built-in mini-rail for hands-free operation. The high definition 1024×768 OLED display provides a crisp image, with iconography providing key information. The Sidekick utilizes simplified 3 button controls that allow for easy manipulation in the field and offers one-touch in-unit video recording to capture all of your experiences.


  • Multiple color palettes
  • Intuitive 3-button control
  • 1 hour runtime on 1 CR123A battery at 20° C
  • Image Detail Enhancement
  • Dovetail Mini-Rail Included for Helmet Mounting (with optional mount)
  • Video Recording & Image Capture
  • USB Video Stream
  • USB-C Interface for External Devices
  • Compass
  • Battery Status Indicator
  • ULTEM Composite Body and Ergonomic Design
  • Designed and Assembled in the USA from U.S. and global component

Package Includes

  • Sidekick 640 Mini Thermal Monocular
  • 2 x CR123A Battery
  • USB-C Cable
  • Lens Cloth
  • Soft Case
  • Product Manual


Detector Type ArmaCORE(TM) 640x480 12um Thermal Core
Detection Range 709m
Recognition Range 177m
Identification Range 111m
Eye Relief 15mm
FOV [HxV] 24.16°(H) × 17.37°(V)
Memory 4 Hours of Video
Dimensions (mm/in) 145 x 50 x 65mm / 5.7 × 1.9 × 2.6in
Weight 242g / 0.53lbs
Optical Magnification 1x
Lens System F/1.00; 19mm manual focus
Digital Zoom 1x - 4x
Diopter Adjustment -5 to +5 dpt
Battery Life Up to 1h at 20° C (68° F)
Battery Type 1 x CR123A (3V)
Wireless None
Display XGA (1024 x 768) OLED
Graphics Active On-Screen Graphics and Iconology
Refresh Rate 60 Hz
Operating Temperature -40° C to +50° C (-40° F to + 122° F)
Waterproof IP67
Image Processing Digital Enhancement
Warranty 3 years w/ registration