The new Pixfra Mile 3 thermal monocular range has been designed around a simple idea: deliver serious thermal imaging performance in a compact, lightweight thermal spotter that you can comfortably carry all day.

The range consists of four models – the Pixfra Mile 3 M325, M335, M625 and M625 LRF – covering both 384×288 and 640×512 thermal sensors, with 25mm and 35mm lens options and, at the top of the range, an integrated 1000m laser rangefinder.

Despite their differences, every Mile 3 benefits from some major upgrades. These include class-leading ≤15mK NETD thermal sensitivity, PIPS 3.0 Pro image processing, a 0.49-inch Full HD OLED display, Pixfra's innovative 3-in-1 E-Wheel, replaceable 18650 batteries, 64GB internal storage and rugged magnesium-alloy construction.

So, which Pixfra Mile 3 should you buy?

The answer largely depends on whether your priority is field of view, magnification, image resolution or laser rangefinding.

Pixfra Mile 3 M325 – The All-Rounder

The Pixfra Mile 3 M325 is the natural starting point in the range and arguably the most versatile choice for somebody looking for a compact 384 thermal monocular.

Its 384×288 sensor and 25mm F0.9 lens provide 1.8× base magnification with a useful 19.3m field of view at 100m and detection capability out to 1300 metres.

That combination works particularly well across mixed terrain. There is enough field of view for searching woodland, forestry and field margins without sacrificing the magnification required to examine animals across more open ground.

For deer stalking, we'd consider the M325 a very capable everyday thermal spotter. It's equally at home checking woodland rides for deer, scanning fields for foxes and rabbits, or conducting general wildlife observation.

Best suited to: Deer stalking, woodland, mixed farmland, pest control, wildlife observation and buyers looking for a versatile 384 thermal.

Pixfra Mile 3 M335 – The Long-Range 384

If you regularly operate across large fields, open hill, moorland or expansive estates, the Pixfra Mile 3 M335 hand held thermal spotter takes the same 384×288 sensor format but pairs it with a longer 35mm F0.9 objective lens.

That increases native magnification to 2.5× and extends the quoted detection distance to an impressive 1800 metres. The trade-off is a narrower 13.6m × 10.3m field of view at 100m.

That difference gives the M335 a noticeably different purpose.

Where the M325 is designed as an all-round scanner, the M335 places greater emphasis on distance and magnification. Distant animals occupy more of the image at base magnification, which can be advantageous when scanning large open areas.

For that reason, we'd particularly consider the Pixfra Mile 3 M335 for foxing, professional pest control, hill stalking and deer management across open ground.

Best suited to: Foxing, longer-range pest control, hill stalking, open farmland, moorland and larger estates.

Pixfra Mile 3 M625 – The Wide-Angle 640

Moving up to the Pixfra Mile 3 M625 thermal imager brings a substantial increase in sensor resolution.

Its 640×512, 12μm detector is paired with a 25mm F0.9 lens, giving the M625 just 1.2× base magnification and a huge 30.6m × 24.4m field of view at 100 metres. Detection range remains an impressive 1300 metres.

This makes the M625 a very different proposition from the M335.

Rather than concentrating on maximum native magnification, the M625 is about seeing more of the landscape at once while retaining the additional detail available from a 640-resolution thermal sensor.

For deer stalking, that's an extremely attractive combination. When scanning woodland rides, clearfell, forest edges or groups of deer, the wider field of view makes it easier to locate animals and maintain awareness of what's happening around them.

It is equally appealing for wildlife research and ecological surveys, where locating multiple animals and understanding their position within the surrounding habitat can be more important than maximum magnification.

At only around 290g, the M625 also manages to package that 640-resolution performance into an exceptionally portable thermal monocular.

Best suited to: Deer stalking, deer management, woodland, wildlife surveys, ecology and anyone wanting maximum image quality with a wide field of view.

Pixfra Mile 3 M625 LRF – The Complete Package

Sitting at the top of the range is the Pixfra Mile 3 M625 LRF.

Fundamentally, the Pixfra Mile 3 M625 LRF offers the same compelling thermal formula as the M625: a 640×512 detector, ≤15mK sensitivity, 25mm lens, 1.2× base magnification, 30.6m field of view and 1300m detection capability.

The big difference is the addition of Pixfra's flush-fit integrated laser rangefinder.

Rather than adding a bulky external rangefinder module, Pixfra has incorporated the LRF into the streamlined body of the monocular. It can measure out to 1000 metres with ±1 metre accuracy.

For deer stalking and deer management, this means an animal can be located, observed and ranged using a single handheld device.

It's also useful for professional wildlife work. When conducting a survey, being able to establish the distance to an observed animal or feature can provide additional context without needing to swap between a thermal imager and separate rangefinder.

If you want the most comprehensively equipped Mile 3, this is the model to choose.

Best suited to: Serious deer stalking, professional deer management, wildlife management, estate work and users who want 640 thermal performance with integrated rangefinding.

M325 vs M335 – Which 384 Mile 3 Should You Buy?

This is probably the easiest comparison to understand

Choose the M325 if you want a more versatile thermal spotter. Its 1.8× magnification and wider 19.3m FOV make it better suited to woodland, mixed terrain and general-purpose scanning.

Choose the M335 if you spend more time looking across open country. Its 2.5× base magnification, 35mm lens and 1800m detection range favour longer-distance observation.

Neither is universally "better" – the lens configuration simply makes them suited to different environments.

M325 vs M625 – Is a 640 Thermal Worth It?

Both models use a 25mm lens, but their different sensor resolutions result in significantly different viewing characteristics.

The M325 gives you 384×288 resolution, 1.8× magnification and a 19.3m horizontal FOV.

The M625 increases resolution to 640×512, drops base magnification to 1.2× and expands the horizontal field of view to a substantial 30.6m at 100m.

For users who spend a lot of time behind a thermal, the M625's combination of additional sensor resolution and substantially wider view makes it particularly attractive for rapid scanning and observing multiple animals.

M625 vs M625 LRF – Do You Need the Rangefinder?

Thermally, these two models are extremely closely matched.

If you already carry a laser rangefinding binocular or separate rangefinder, the standard M625 gives you the core 640 thermal performance in a smaller, lighter package.

If you want to spot and range with one device, choose the M625 LRF.

For professional deer managers and stalkers working across unfamiliar ground, we think the convenience of integrated rangefinding will make the M625 LRF particularly attractive.

Features Shared Across the Pixfra Mile 3 Range

Whichever model you choose, the Mile 3 platform brings together an impressive collection of features:

• ≤15mK NETD thermal sensitivity
• PIPS 3.0 Pro AI-powered image processing
• 3-in-1 Integrated E-Wheel
• Large 0.49-inch 1920×1080 OLED display
• Up to 8× digital zoom
• Six thermal colour palettes
• Photo and video recording
• 64GB built-in storage
• Wi-Fi hotspot connectivity
• Picture-in-Picture
• Hot Spot Tracking
• Digital compass
• Replaceable rechargeable 18650 batteries
• USB Type-C
• Rugged magnesium-alloy construction
• IP67 waterproof and dustproof protection

The new Mile 3 platform represents a substantial upgrade over the previous Mile 2 generation, with Pixfra highlighting improvements to thermal sensitivity, image processing, display size, storage, battery configuration, ergonomics and startup performance.

Which Pixfra Mile 3 Is Best for You?

For a compact all-round thermal monocular, choose the Pixfra Mile 3 M325.

For greater magnification and longer-distance scanning, particularly for foxing, open farmland and hill ground, choose the Pixfra Mile 3 M335.

For premium 640 thermal image quality and the widest field of view, choose the Pixfra Mile 3 M625.

And for the ultimate Mile 3 package, combining the 640 sensor and wide field of view with an integrated 1000m laser rangefinder, choose the Pixfra Mile 3 M625 LRF.

What makes the range particularly interesting is that Pixfra hasn't simply created four increasingly expensive versions of the same thermal monocular.

The different sensor and lens combinations give each model a distinct purpose, allowing hunters, stalkers and wildlife professionals to choose a Mile 3 thermal monocular that genuinely matches the terrain and type of observation they undertake.

View the full Pixfra Mile 3 Hand Held Thermal range on our website.