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PixFra Sirius S650 Review – Powerful thermal imaging device for long distances in the field

March 21, 2025
Author: Stephan

A thermal imaging device for long distances: PixFra Sirius S650

Thermal imaging technology is constantly evolving – and with PixFra A manufacturer is establishing itself that combines high-performance optics with innovative features. The Sirius S650 is the flagship of the series and sets with its 640 sensor, the 50 mm lens and the well-thought-out battery replacement system new standards. The device is designed to demonstrate its strengths particularly in open areas, from hides, or at bait stations. We've tested the device and show you what it's really capable of in the hunting area.

The PixFra Sirius S650 in review

The scope of delivery of the PixFra Sirius S650

The PixFra Sirius S650 comes with a comprehensive accessory package that ensures a smooth start in the field.

The scope of delivery includes:

  • Spacious protective bag with attachment eyelets
  • Two 18650 batteries
  • Charging cradle with USB-C port
  • USB-C cable
  • Carrying strap for the device and hand strap
  • Cleaning Cloth
  • Operating instructions and instructions for the PixFra App

PixFra Sirius S650 in review – Robust thermal imaging device for hunting use

The Sirius S650 relies on a stable construction and a ergonomic design Despite its size, the device, weighing 604 g including the battery, fits comfortably in the hand. The elongated shape ensures comfortable handling, regardless of whether it is used with the left or right hand. The strengths of this design are particularly evident in practice.

  • Robust construction and well-thought-out ergonomics
    Thanks to its IP67 certification, the device is optimally protected against dust and moisture. The eye rest and diopter adjustment allow individual adjustment for optimal visibility . A special detail: The lens cover closes almost silently – perfect for inconspicuous observations.
  • Removable battery system
    PixFra The Sirius S650 uses universal 18650 batteries, allowing for quick and easy replacement. A particularly clever feature: A small loop makes it easy to remove the battery – even with cold hands or gloves. A simple yet effective solution for extended use in the field. Great!
  • intuitive operation
    The controls are arranged sensibly and offer a pleasant feel. Particularly noteworthy is the illuminated on/off button , the brightness of which can be individually adjusted.

Technical details of the PixFra Sirius S650 in review

With its 640 × 512 VOx sensor and large 50 mm optics, the Sirius S650 delivers impressive image quality Objects measuring 1,80 meters can be detected at distances of up to 2600 meters. Even though game animals are generally smaller, thanks to the high sensor performance and image quality, they can be reliably detected in motion or based on their social structure at distances of up to 500 meters – perfect for long-range hunting.

A special highlight is the high sensitivity of the sensor. The low NETD value of ≤ 18 mK ensures detailed representation of heat sources , even under adverse conditions such as fog or high humidity. The device particularly demonstrates its strengths in open areas and meadows.

In addition to the outstanding image quality, the device impresses with its intuitive operation. The digital zoom (1x, 2x, 4x, 8x) allows flexible adjustment of the magnification, while the diopter adjustment ensures precise focusing A virtually silently closing lens cover also helps you operate discreetly in your area.

  The PixFra Sirius S650
Sensor 640 × 512 pixels VOx
Sensor pitch 12 um
Sensor sensitivity ≤18mK
Display 1920 × 1080 pixel OLED display
digital zoom 1x / 2x / 4x / 8x
lens 50 mm
Optical magnification 3.45x
Field of view 100 m: 15,4 m
detection distance 2600 m
battery performance Up to 6 hours
Internal memory 64 GB
recording Ja
WiFi function Ja
Weight with battery 537 g

Our conclusion on PixFra Sirius S650 in review

The PixFra The Sirius S650 impresses with excellent image quality, robust construction, and practical features. The easy battery replacement system, the quiet closing lens cover and ergonomic operation make it a reliable companion in the hunting area. This model is a clear recommendation, especially for hunters who require powerful optics with a long range.

You have the right one Thermal Imager Haven't found it yet? Your team at Waermebild24 will be happy to help you. Simply fill out the form below Contact Form Contact us and we will find the right device for you. Or take a look at our product Finder ! With just a few questions, you can quickly and easily find the thermal imaging device that perfectly suits your needs. Happy hunting!

Photos from the precinct after PIXFRA Sirius S650 review

We have a few recordings with him for you PIXFRA The Sirius S650 thermal imaging handheld device was used. The imaging distance was approximately 40–60 meters.

Simulate field of view width

Our “field of vision calculator” makes this clear Prepare the field of view at the respective distance. This simulation is intended to help you get a feel for how large the section you see through this thermal imaging camera is.

Field of View Calculator
Field of view width in meters

Tested product

PixFra Sirius S650

Manufacturer information PixFra

PixFra is known for innovative thermal imaging cameras that offer high performance in a compact design. They are suitable for precise temperature measurements and a wide range of outdoor and security applications.

More products from PixFra can be found on our shop page for the manufacturer.

The hunting friends Stephan & Marco will advise you!

Stephan & Marco, thermal imaging experts

Phone: 03491 - 43 26 68
WhatsApp: 01590 - 483 39 73
Email: [email protected]

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