Pixfra Mile 3 vs ThermTec WILD: Which Thermal Monocular Offers Better Value in Australia?

Pixfra Australia · Comparison · Thermal Monoculars

If you have spent any time on Australian thermal shortlists in the last couple of years, ThermTec’s WILD family will have come up. It has earned that. The WILD monoculars are well built, they use a fast objective, and they have a loyal following among people who spend real nights out in real paddocks. When Pixfra’s Mile 3 range arrived, the obvious question from anyone already looking at a WILD was a fair one: how do these actually compare, and does the price difference mean anything?

This is not a review that was ever going to end with “the WILD is rubbish”, because it isn’t. What follows is a specification-by-specification comparison of the four pairings that genuinely line up, built on official manufacturer data from both brands and on Australian retail prices we checked ourselves. Where ThermTec leads, we say so plainly. Where the two are the same, we say that too. The interesting question is not which brand is better. It is what the extra money actually buys you, and whether you personally need it.

Specifications and Australian pricing checked: 16 August 2026

Which models actually line up?

Neither range is a mirror of the other, so the first job is to work out which model competes with which. Both families run 12 micron pixel pitch, both offer a 384 tier and a 640 tier, and both offer laser ranging at the top of the range. On sensor and lens, four pairings fall out naturally.

The last two rows deserve saying out loud rather than burying in a table. Pixfra’s 640 models use a 25 mm lens; ThermTec’s 640 models use a 35 mm lens. That is a genuine design fork. A shorter lens on the same detector gives you a wider field of view and less magnification; a longer lens gives you the opposite. Neither is a mistake. They are aimed at different jobs, and we come back to this properly further down.

ThermTec’s wider WILD family also extends into longer-lens and dual-field-of-view configurations. Those products sit outside the direct Mile 3 comparison considered here.

The two ranges take different approaches

Before any winner-declaring, it is worth understanding what each manufacturer appears to have optimised for, because it explains almost every number in this article.

ThermTec’s WILD range prioritises the front end and endurance. Every WILD in this comparison uses an F0.8 objective, which is a fast lens by any standard, and every WILD publishes a longer runtime per battery than the Mile 3 equivalent. ThermTec also keeps a 35 mm lens on the 640 models, which delivers higher native magnification and a longer stated detection figure. The trade-off is a physically larger, heavier device with a smaller, lower-resolution display.

Pixfra’s Mile 3 prioritises the back end and the ergonomics. Mile 3 puts a 0.49 inch 1920 by 1080 OLED behind the eyepiece where WILD uses a 0.39 inch 1024 by 768 AMOLED, drops the 640 models onto a 25 mm lens for a much wider scanning field, and comes in at roughly 290 to 313 grams against WILD’s 470 to 505 grams. The trade-off is a slower objective, lower native magnification, and a materially shorter runtime.

M325 vs WILD 325 — the entry pairing

This is the cleanest comparison in the article. Same detector, same pixel pitch, same nominal 25 mm lens, same 1,300 m stated detection figure. Anything that differs here is a design decision, not a specification tier.

M335 vs WILD 335 — the reach pairing

Step up to the 35 mm lens on the same 384 detector and both ranges do the same thing: trade field of view for magnification and stated reach. Both quote 1,800 m detection. Both narrow to roughly 7.5 to 7.8 degrees.

M625 vs WILD 635 — scanning width against reach

This is the most interesting pairing in the article, and the one where a specification table on its own will actively mislead you. Both are 640 by 512 at 12 microns. Both are the same generation of detector. But Pixfra puts a 25 mm lens in front of it and ThermTec puts a 35 mm lens in front of it, and everything downstream follows from that single decision.

How much scene does each one actually show you?

Degrees are hard to picture. Metres at 100 m are not. Convert the published fields of view and the difference becomes concrete: the M625 shows you 30.6 metres of ground at 100 metres; the WILD 635 shows you roughly 21.9 metres. That is 8.7 extra metres of scene, about 40% more width, in a single glance.

If you are walking a fence line sweeping for movement, that extra 40% of width is the difference between three passes and two. If you are glassing a single clearing at 400 m trying to work out whether that heat signature is a deer or a wombat, the WILD’s extra magnification and 500 m of extra stated detection is the more useful tool. This is a real trade, and it is the whole reason both configurations exist. We cover the underlying mechanism in Thermal Field of View Explained and Thermal Lens Size Explained.

M625 LRF vs WILD 635L — the closest fight

This is the pairing most Australian buyers at the top of these ranges will actually be choosing between, and it is the one where the two brands come closest to genuine feature parity.

On ranging, this is a genuine draw. Both publish 1,000 m maximum, both publish plus or minus 1 m accuracy, and both are Class 1 laser devices. If a salesperson tells you one of these ranges meaningfully further than the other, the published specifications do not support it. Pixfra additionally publishes both straight-line and true horizontal distance output, which matters if you range across a valley at a steep angle; ThermTec’s official specifications do not state whether the 635L does the same, so we are not claiming it does not.

Where they part company is the same fork as before. The WILD 635L is a longer-lens, higher-magnification, longer-reach instrument in a 505 g body. The M625 LRF is a wider-field, lower-magnification instrument in a 313 g body with a far denser display. And the Australian price gap at the time of writing is $1,049.

Thermal sensitivity: why NETD does not settle this

The tempting argument here writes itself: Pixfra publishes a NETD of 15 mK or better, ThermTec publishes 18 mK, therefore Pixfra sees better. That argument is not sound, and we are not going to make it.

Two problems make a straight 15-versus-18 comparison unsafe.

First, the two numbers are quoted on different bases. Pixfra states its figure as “≤15 mK @ f/1.0” — explicitly normalised to an f/1.0 optic. ThermTec states its figure as “18 mK @ 300 K” — qualified by scene temperature, with no aperture stated. NETD is strongly dependent on the f-number it is measured at. Without knowing ThermTec’s measurement aperture, you cannot subtract one from the other and call the difference meaningful.

Second, and more importantly, NETD is one link in a chain. What actually reaches your eye is the product of how much infrared energy the lens collects, how well the detector converts it, how the processing handles it, and how the display presents it. A detector with a slightly better noise figure sitting behind a slower lens can easily produce a worse picture than a slightly noisier detector behind a faster one.

The honest conclusion is unsatisfying but correct: on paper Pixfra states the quieter detector and ThermTec fits the faster lens. Those two advantages push in the same direction on image quality, and the published data does not let anyone say with confidence which one nets out ahead in the field. If you want the mechanism in full, What Is NETD covers why the number can mislead, and Thermal Lens Size Explained covers the optics side.

What F0.8 actually buys

ThermTec's aperture advantage is real and it applies right across the range, so it deserves explaining rather than glossing.

Run the numbers on the four pairings:

That is a meaningful engineering advantage on every pairing, and it is at its largest at the M625 LRF pairing, where Pixfra steps back to F1.0 to accommodate the integrated laser. Anyone telling you aperture does not matter is wrong. What we would push back on is the leap from "faster lens" to "therefore better picture", because the detector, the processing and the display all get a vote before anything reaches your eye.

Display resolution is not sensor resolution

Mile 3 uses a 0.49 inch 1920 by 1080 OLED. The WILD range uses a 0.39 inch 1024 by 768 AMOLED. That is roughly 2.6 times the pixel count on a physically larger panel, and it is worth being precise about what that does and does not achieve.

What a larger, denser display genuinely contributes is the presentation layer. Menu text, reticles, compass and ranging overlays and picture-in-picture windows render more crisply. The pixel structure of the panel itself is less visible when you are staring through an eyepiece for an hour, which for a lot of people is the difference between comfortable and fatiguing. And when you use digital zoom, a denser panel has more room to present the magnified image before the display itself becomes the limiting factor — which is relevant given Mile 3 offers 8× digital zoom against WILD’s 4×. Our guide to optical versus digital zoom explains why that is a presentation benefit and not a detail benefit.

Set against that, ThermTec’s higher native magnification means the WILD presents a larger apparent image from the same optics. On the M325 against WILD 325 pairing — same detector, same nominal lens, near-identical field of view — ThermTec’s 2.4× against Pixfra’s 1.8× is purely an eyepiece and display design choice, and some people will simply prefer the bigger view. Both are legitimate ways to spend the same optical information.

Weight — a bigger difference than it looks on paper

A hundred and seventy grams sounds like nothing. Written as a percentage it stops sounding like nothing.

Why this matters more on a monocular than on a riflescope is simple: a riflescope’s weight is carried by the rifle. A monocular’s weight is carried by your arm. A scanning monocular spends its working life held up to your eye, often one-handed, often for long stretches, often after you have already walked several kilometres. Two hundred grams at the end of an extended arm is not the same as two hundred grams in a pack, and it accumulates over a night. It also determines whether the thing lives in a jacket pocket or needs its own pouch — Mile 3’s body is roughly 30 mm shorter and about 17 mm narrower than the WILD’s, which is the more practical difference for most people.

We are not going to overstate it. Nobody has ever failed to shoot a pig because their monocular was 470 g. But if you scan for hours, it is one of the differences you will actually notice, night after night, rather than one you read about once.

Battery life — where ThermTec’s claim is stronger

We set ourselves a rule not to minimise a competitor advantage, so here is this one straight: ThermTec claims materially longer endurance than Pixfra, and the gap does not close.

Both ranges are built the same way. Each device runs from one replaceable 18650 cell at a time, and both manufacturers state that two cells are supplied — Pixfra in its Mile 3 feature documentation, ThermTec in the "what’s included" list published on its product pages and in the WILD series manual’s packing list. So this is not a case of one brand giving you a spare and the other not. It is a straight comparison of how long each device runs.

On that basis ThermTec leads clearly. ThermTec publishes 10 hours for the WILD 325 and 335 and 8 hours for the 635 and 635L. Pixfra publishes 5.5 hours or more per cell for the M325 and M335 and 5 hours or more for the M625 and M625 LRF. That is roughly 1.6 to 1.8 times longer in ThermTec’s favour, per cell and across the supplied pair alike.

Two pieces of context, one in each direction. ThermTec does not publish the test conditions behind its runtime figures, and independent field testing has come in below them — a WILD 635L test reported 7 to 8 hours against the claimed 8, which is a good result, while a WILD 325 test reported closer to 6 hours against the claimed 10. Pixfra’s figures are stated at 25 °C with Wi-Fi off, which is a disclosed but favourable condition. Treat every runtime number on both sides as an optimistic ceiling. If endurance is your deciding factor, Getting More Battery Life covers what actually moves it in the field — and on either brand, a third cell costs about twenty dollars.

Field of view against detection range

The 640 pairing is the perfect teaching example, because ThermTec’s 1,800 m detection figure against Pixfra’s 1,300 m looks like a straightforward win until you understand where those numbers come from.

Thermal detection-range specifications are generally derived from optical geometry, detector characteristics and an assumed target size under defined or modelled conditions. They are not measurements of what you will see on a humid February night in North Queensland. Critically, neither ThermTec nor Pixfra publishes enough methodology here — target dimensions, atmospheric assumptions, probability threshold — for anyone to assume the two figures were produced under equivalent conditions. So the two numbers are not strictly comparable even before you factor in weather. How Far Can a Thermal Scope Really See pulls that apart properly, and Detection vs Recognition vs Identification explains why “detection” is a much weaker claim than most buyers assume.

What the 1,800 m against 1,300 m difference does reliably tell you is that the WILD 635 has a longer lens, which we already knew. The same longer lens is what costs it 8.7 metres of scene width at 100 m. You cannot have both from one fixed objective. That is the trade, stated honestly in both directions.

Australian pricing

Pricing checked: 16 August 2026

Competitor pricing moves, and it moved while we were researching this. Everything below is what we could verify on Australian listings on the date stamped above, gathered across the Australian distributor and ten retailers rather than from a single source. All figures are GST-inclusive. Sale prices are identified as sale prices, and we have not treated a sold-out sale price as a current street price. Check current pricing before you buy.

Set against current Australian Pixfra Mile 3 pricing, the gaps are these.

So what does spending more on ThermTec actually buy?

This is the section that matters, and it deserves a real answer rather than a rhetorical one. Based on the verified specifications, an Australian buyer paying the premium for a WILD over the equivalent Mile 3 is buying four things.

One: a faster objective. F0.8 against Pixfra’s F0.9, or F1.0 on the M625 LRF, on every pairing. That is roughly 27% more image-plane irradiance at three of the four pairings and roughly 56% at the M625 LRF pairing, all else being equal. It is a genuine optical advantage.

Two: substantially longer endurance. Ten hours per cell against 5.5, or eight against five — roughly 1.6 to 1.8 times longer, and because both brands supply two cells the advantage carries straight through to the whole package. This is the single clearest thing the premium buys.

Three: higher native magnification. On every pairing. 2.4× against 1.8×, 3.3× against 2.5×, 2.0× against 1.2×. If you find low-magnification thermal images hard to read, this is the most noticeable difference between the two ranges in the hand.

Four, on the 640 models only: more reach. The 35 mm lens delivers 1,800 m stated detection against 1,300 m, and shows a distant target larger. If your work is long-range observation, that is exactly what you are paying for.

Now the harder question. Is that worth the actual Australian price difference? The answer genuinely depends on which pairing you are looking at.

Where Mile 3 makes its strongest case

Stripping out everything that is a draw, Pixfra’s argument rests on four things that are all verifiable from the datasheets.

Portability. Between 290 and 313 g against 470 to 505 g, in a body roughly 30 mm shorter and 17 mm narrower. For an instrument that is held up rather than mounted, this is the difference you feel most often.

Scanning width on the 640 models. 30.6 m of scene at 100 m against roughly 21.9 m. For finding animals rather than studying them, more width is more useful than more magnification, and 40% more width is a lot.

The viewing and control experience. A 0.49 inch 1920 by 1080 OLED against a 0.39 inch 1024 by 768 panel, 8× digital zoom against 4×, and the 3-in-1 E-Wheel that combines electronic focus, zoom and menu navigation on one control for genuine one-handed operation. Also a wider operating temperature range at both ends, dual-band Wi-Fi supporting up to four phones, and both straight-line and true horizontal ranging output on the LRF model.

Price. Between $529 and $1,809 less than the ThermTec equivalent depending on the pairing, at Australian prices on the date checked — with Australian distribution and C.R. Kennedy-backed service behind it.

Which one should you buy?

Rather than a scorecard, here is the same question answered as the situations people actually find themselves in.

The verdict

ThermTec’s WILD range is a capable, technically serious family of thermal monoculars, and it holds real advantages that we have no interest in talking down. The F0.8 objective is faster than anything in the Mile 3 range, on every pairing. The claimed runtime is roughly 1.6 to 1.8 times longer, and both brands ship two cells so that lead does not close. The native magnification is higher on every single pairing. And on the 640 models, the 35 mm lens delivers reach the M625 cannot match. If those are the things your nights are made of, the WILD is a legitimate choice and you will not be disappointed by it.

What Mile 3 changes is not whether WILD is good. It is the price of admission. At $1,550, $1,690, $2,190 and $2,450, Pixfra is asking between 34% and 83% less than the equivalent WILD in Australia while delivering a lighter and physically smaller instrument, a considerably larger and higher-resolution display, a wider scanning field on the 640 models, and identical 1,000 m Class 1 ranging where both offer it. The M625 LRF at $2,450 is the sharpest illustration: it costs less than the 384-class WILD 335, and it does the same ranging job as a $3,499 WILD 635L.

So the honest conclusion is not that one brand beats the other. It is that the two ranges are optimised differently, and that an Australian buyer now has to decide whether ThermTec’s faster lens, longer runtime and higher magnification are worth between $529 and $1,809 more than a lighter, wider-viewing alternative with a higher-resolution display. For a long-range observer who values magnification above all, that premium can be defended. For most people doing most of their scanning on foot, it is a lot of money for advantages they will not use every night.

Weighing the Mile 3 against other brands? See how it lines up against the NocPix LUMI family.

Frequently asked questions

Educational comparison only. Specifications sourced from official Pixfra datasheets (PFI-M325, PFI-M335, PFI-M625, PFI-M625 LRF) and official ThermTec product documentation, and Australian pricing verified across the Australian ThermTec distributor and ten Australian retailers on 16 August 2026 (GST inclusive). Competitor pricing and availability change; verify current pricing before purchase. Where manufacturer sources conflicted, the current official specification is used and the conflict is disclosed in the text rather than silently resolved. Detection-range figures from all manufacturers are modelled estimates, not guarantees, and detection is not identification — always positively identify a target before acting.