RIX Storm S3 review

The verdict up front

The Storm S3 is the thermal scope to buy when weight is the constraint. At about 0.97 lb it is roughly half the mass of the ATN ThOR 6 Elite LRF in the same budget tier, it arrives with a Picatinny quick-detach mount in the box rather than as a separate purchase, and RIX backs it for five years. On our rubric it scores 7.4/10.

The case against it is not about the sensor. A 12 µm 384 behind a 35 mm F1.0 lens at 50 Hz is a perfectly good front end for hog distances. The case against it is three empty cells on the spec sheet and one short number. RIX publishes no IP or waterproof rating, no operating temperature range and no field of view for this scope, and it publishes a runtime of about 4.5 hours per 18650 - the shortest in the three scopes we compare it against here.

So: a light, well-warrantied, well-mounted 384 for a hunter who carries their rifle and manages batteries, with more unknowns about weather tolerance than we would like at this money. If you sit still and want the most capability per dollar instead, the section on the awkward comparison below is the part to read.

What RIX publishes

RIX's own Storm S3 page, re-read on October 26, 2026, states:

• A 384x288 sensor at 12 µm pixel pitch
• <25 mK NETD
• A 35 mm objective at F1.0
• 3.5x base magnification with 1-4x digital zoom
• 50 Hz refresh, and a 1024x768 AMOLED display also at 50 Hz
• A detection claim of about 1,969 yd - a maker's claim
• A swappable 18650 cell, about 4.5 h at 72°F, plus 5 V USB-C input
• 32 GB of built-in storage, Recoil-Activated Video, and Wi-Fi to the RIX+ app
• A 1000 g / 6000 J recoil rating
• About 0.97 lb, in a 6.0 x 2.8 x 2.4 in aluminum alloy housing
• A Picatinny QD mount included, and a five-year warranty

That is a complete-looking list, which is exactly why the gaps are easy to miss.

The three blanks

The weight is the real feature

About 0.97 lb, which is 15.5 oz. For comparison, in the same budget tier the ATN ThOR 6 Elite LRF 384 is 830 g (1.83 lb) and the oneleaf Mars MT1000LRF is 549 g (19.37 oz). The S3 is the lightest of the three, and the gap to the ATN is nearly a pound.

A pound sounds like nothing until you have walked a section line at 2 a.m. with a rifle slung, or held one offhand on a hog that stepped out at the wrong angle. Weight on the rifle is the spec most buyers under-value and most owners complain about, and it is the one the S3 wins outright here. Pair it with the lightest rest you can live with - our shooting stick and tripod ranking sorts those by weight as well as height.

The included Picatinny QD mount compounds the advantage. ATN ships the ThOR 6 Elite for 30 mm rings and does not include them, so that scope costs more than its price and arrives needing a second decision. The S3 is ready to go on an AR rail out of the box, which for a 300 Blackout or 5.56 hog rifle is the normal case - see the hog hunting AR setup.

Four and a half hours

RIX rates the S3 at about 4.5 hours at 72°F on one 18650. A sit from last light to 2 a.m. is about six hours, so the scope is specified not to cover one full night on the cell it comes with.

Two mitigations, both real. The cell is swappable, which is better than the sealed or half-sealed arrangements elsewhere - the ATN runs two 18650s of which only one is replaceable in the field - and the scope takes 5 V USB-C external power, so a pocket bank covers a long sit. Neither is free: you are carrying either spare cells or a cable.

Note also that 4.5 hours is the figure at 72°F, and lithium cells give up capacity as the temperature drops. RIX does not publish a cold-weather runtime, and since it does not publish an operating temperature range either, there is no published floor to plan against. Budget two spare cells for a winter night and you will not be caught. More on this in how long a thermal scope lasts.

The awkward comparison in its own tier

S2 or S3? Where the extra tier goes

RIX also sells the Storm S2, a 256x192 scope on a 25 mm lens, a budget tier below. On our rubric the S3 scores 7.4/10 against the S2's 6.8 - a real gap, but a smaller one than a whole budget tier implies, and it is worth knowing exactly what the extra money buys before you spend it.

The whole difference is the front end and the warranty. The S3 is a 384 at 12 µm against a 256, which is more pixels on a hog at any distance, and it carries five years against the S2's three. Everything else runs the other way: the S2 wins runtime at roughly 5 to 8 hours per 18650 against the S3's 4.5, it wins price by a whole tier, and both are about the same weight with the same QD mount in the box. Note that the S2 page leaves the same IP and operating-range cells blank, so the S3 is not buying you any extra durability information either.

Practically: if your shots are inside about 100 yards over a lit feeder, the S2 is the sane purchase and the money saved buys a feeder light and a rest. If you are identifying hogs at 150 to 250 yards, the 384 earns its tier. The full argument about sensor sizes is on thermal scope resolution: 256 vs 384 vs 640.

Who this scope is for

Alternatives and how they differ

Three ways to spend about the same money differently:

• oneleaf.ai Mars MT1000LRF - the capability pick, and the scope we would buy for a rest: oneleaf publishes 640x512 at <20 mK, a 1,300 yd rangefinder with a seven-profile ballistic calculator, a 2x base through a 12.5° x 10.1° view, IP67, 6000 J and optional 50 mm and 75 mm lenses. It is 4 oz heavier and the warranty is three years rather than five. It leads our under-$2,000 ranking.
• ATN ThOR 6 Elite LRF 384 - the sensitivity and ranging pick: ATN publishes ≤15 mK, the lowest NETD we have found in this tier, a 1,000 m rangefinder, a 1920x1080 OLED against the S3's 1024x768, 64 GB, IP67, -22°F to 131°F and a five-year warranty. The costs are weight (1.83 lb) and rings that are not in the box. Head to head with this family on AGM Rattler vs ATN ThOR.
• RIX Storm S2 - a budget tier below with the same body habits: a 256x192 on 25 mm, roughly 5 to 8 hours per 18650 - better than the S3 - the same included QD mount, and a three-year warranty. It scores six tenths lower than the S3 on our rubric, which is less of a gap than a whole budget tier suggests. Compared directly with the AGM 256 on AGM Rattler vs RIX Storm.

If the real question is whether to buy thermal at all, start with are thermal scopes worth it, and the best thermal scope for hog hunting ranks this whole category for the hog problem specifically.

How we reviewed this

Plainly: we have not shot this scope. This is a specification review. Every figure above comes from RIX's own Storm S3 product page, re-read on October 26, 2026, and from ATN's, oneleaf's and RIX's own pages for the comparisons. We confirmed the Storm S3 and all three alternatives were currently sold with a live price the same day through our daily price check. Scores come from the published thermal rubric on how we choose.

Our network standard is "tested when I can, researched when I can't, labeled either way", and this page is labeled. Where RIX does not publish a figure - the ingress rating, the operating range, the field of view - we have said so rather than borrowing a number from a sibling model or a retailer's copy.

For the same money in a different brand, read the Pulsar Thermion 2 XQ50 Pro review; a tier down, the ATN ThOR 6 Mini 256 review covers the entry end. And if you are weighing a headlamp into the same budget, our hunting headlamp ranking is the cheapest part of a night setup.