ATN ThOR 6 325 vs. ThOR 6 635: Best Thermal for Hog...

If you're hunting hogs in 2026, you already know that thermal is non-negotiable. Hogs move at night, root through thick brush, and show zero mercy on crops, pastures, and property. You need a thermal scope that can keep up. Two models from ATN's ThOR 6 lineup are getting serious attention this season: the ATN ThOR 6 325 and the ThOR 6 635. Both run on the same 6th Generation thermal engine. Both carry ATN's full suite of smart features. But they're not the same scope, and choosing the wrong one will cost you shots.

This comparison breaks down exactly where these two scopes differ, which one is better suited for hog hunting specifically, and why the ATN ThOR 6 325 is the smarter buy for most hunters in 2026.

Why Thermal Matters for Hog Hunting

Feral hogs are predominantly nocturnal. They move heaviest in the first few hours after dark and are notoriously difficult to glass in low-light or dense-cover environments. Traditional night vision struggles when there's no ambient light or when hogs are buried in tall grass and brush. Hog hunting thermal scope technology solves that problem completely by detecting body heat, not reflected light. Even a hog lying still in thick cover will radiate enough heat to show up clearly on a quality thermal sensor.

The difference between a mediocre thermal scope and a great one comes down to sensor sensitivity, image processing, and practical field features. Both the ThOR 6 325 and ThOR 6 635 are built on ATN's most advanced thermal platform to date, but their sensor resolution and lens configurations create meaningful real-world differences that matter when you're lining up a shot at 150 yards in total darkness.

ATN ThOR 6 325 vs. ThOR 6 635: The Core Differences

Before diving deep, here's the fundamental split between these two scopes. The ThOR 6 325 runs a 384×288 sensor with a 25mm germanium lens at F/1.0. The ThOR 6 635 runs a 640×512 sensor with a 35mm germanium lens at F/1.0. Both share the same 12μm pixel pitch and ultra-sensitive ≤15mK NETD sensors. Both run on the same 6th Generation thermal core. But the resolution and optics create different performance profiles.

Sensor Resolution: 384×288 vs. 640×512

The 640×512 sensor in the ThOR 6 635 delivers more than 2.7 times the pixel count of the 384×288 sensor in the ThOR 6 325. On paper, more pixels means more detail. In practice, it also means more cost and a different field of view. For hog hunting at realistic engagement distances, typically inside 300 yards, the 384×288 sensor with SharpIR AI enhancement produces images that are sharper, faster to process, and more than adequate for confident target identification and ethical shot placement.

The 640×512 resolution in the ThOR 6 635 becomes a genuine advantage at longer ranges or when you need to discriminate between a target hog and surrounding brush at extended distances. If your hunting style regularly involves shots past 300 yards across open senderos or large agricultural fields, that extra resolution pays off. But for the vast majority of hog hunters working in brush country, food plots, or wooded terrain inside 250 yards, the 384×288 sensor delivers everything you need.

Field of View and Magnification

This is where the ATN ThOR 6 325 specs give it a genuine edge for hog hunting. The ThOR 6 325 offers a field of view of 10.53° × 7.91° with a magnification range of 2.5-20×. The ThOR 6 635 delivers a narrower 12.52° × 9.41° field of view with a 2-16× magnification range.

Wait, that looks like the 635 has a wider FOV. It does. But the 635 achieves that wider view at lower base magnification due to its 35mm lens versus the 325's 25mm lens, and the 635 tops out at 16× digital zoom compared to the 325's 20×. For hog hunting scenarios where you need to scan quickly, pick up moving targets in low-contrast brush, and then zoom in to confirm and engage, the ThOR 6 325's wider starting FOV combined with higher maximum magnification gives you excellent versatility across multiple engagement distances.

Detection Range

The ThOR 6 325 delivers a detection range of 2,300 meters. The ThOR 6 635 extends that to 3,100 meters. In absolute terms, yes, the 635 sees farther. But for hog hunting, you're not engaging targets at 3,000 meters. You're working to 200 or 300 yards in most cases. The 325's 2,300-meter detection range is more detection range than virtually any hog hunter will ever need in a real hunt.

Weight and Size

The ThOR 6 325 weighs in at 790g (1.74 lbs) and measures 410 × 85 × 66mm. The ThOR 6 635 steps up to 830g (1.83 lbs) at 430 × 85 × 72mm. That 40-gram difference might sound negligible on paper, but when you're carrying a rifle through thick brush in July Texas heat or setting up quickly for a shot on a fast-moving sounder, the lighter, shorter profile of the 325 makes a noticeable difference. Hog hunting is active hunting, and equipment that balances well and weighs less pays dividends over a long night.

Shared Features: Where Both Scopes Excel

Despite their differences in sensor resolution and optics, the ThOR 6 325 and ThOR 6 635 share the same core feature set. Understanding what both scopes bring to the table is just as important as understanding where they diverge.

SharpIR AI-Enhanced Imaging

Both scopes run ATN's proprietary SharpIR AI-enhancement technology. This is not a simple sharpening filter. SharpIR scans and optimizes every pixel in real time, improving edge definition and target contrast dynamically. For hog hunting specifically, this means that even when a hog is partially obscured by brush or bedded in tall grass, SharpIR works to define the shape, separate it from the background, and give you a clear enough image to make a confident shot decision. On the ATN ThOR 6 325, SharpIR does significant work to elevate the 384×288 sensor output to a visual quality that punches well above its resolution class.

Hot Point Tracking

Hot Point Tracking automatically identifies and highlights the hottest object in your field of view. For hog hunting, this is a genuinely useful feature. When you're scanning a dark field and a sounder of hogs is moving through, Hot Point Tracking immediately draws your attention to the most heat-intensive signature in your view. No scanning, no second-guessing. This speeds up target acquisition in low-contrast environments, which translates directly to more shots taken at the right moment.

Recoil Activated Video (RAV)

RAV automatically captures up to 10 seconds before and after recoil. You never have to fumble with a record button. Every shot is documented, including point of impact. For hog hunters running semi-automatic platforms and taking multiple shots in a session, this feature means your best moments are always captured without any distraction from the hunt itself.

Built-in Wi-Fi and ATN Connect 6 App

Both scopes connect to the ATN Connect 6 app via built-in Wi-Fi hotspot. This lets you use a smartphone or tablet as a live viewfinder, replay shots instantly, or stream the view to a hunting partner. In a practical hog hunting context, this is useful for coordinating multiple shooters on a sounder. One hunter on the rifle, one watching the live feed to call movement, communicate hog count, and direct the shot sequence.

64GB Internal Storage and Internal Gallery

Both scopes carry 64GB of internal storage, which is substantial. There are no SD cards to manage or lose. Footage saves directly to the scope, accessible via the internal gallery from the device itself or transferable via USB-C. For a hunter running multiple night sessions, this capacity handles hours of video without interruption.

Zeroing Freeze

Zeroing Freeze pauses the image at the moment of impact so you can make precise reticle adjustments without rushing before the shot disappears. For hunters who switch platforms regularly or set up new rifles before the season, this feature saves time and ammunition at the range.

Picture-in-Picture (PIP)

PIP mode allows you to zoom in for precise targeting while maintaining a secondary wide-view window. In hog hunting scenarios where a target hog is close but you want to maintain awareness of the rest of the sounder, PIP gives you the ability to zoom in on the shot without losing situational awareness.

Battery Life and Replaceable System

Both scopes run on two 18650 rechargeable batteries, one internal and one replaceable, delivering approximately 9 hours of continuous runtime. For an all-night hog session, 9 hours covers the prime movement windows. The replaceable battery design means you can carry spares and extend your time in the field indefinitely without hunting for an outlet.

Build Quality and Durability

Both scopes are built in magnesium alloy housings rated IP67 for waterproofing and rated to handle 6,000 joules of recoil at 1,000g acceleration over 0.4ms. This is serious recoil resistance. Whether you're running a .308, .300 Win Mag, or a high-volume semi-auto like an AR-10, both scopes are built to take the abuse. Operating temperature range runs from -30°C to 55°C (-22°F to 131°F), covering every realistic hunting environment you'll encounter.

ATN ThOR 6 325 Review 2026: Why It Wins for Hog Hunting

The ATN ThOR 6 325 review 2026 story comes down to this: it delivers the right combination of sensor performance, field-of-view versatility, feature depth, weight savings, and value for the specific demands of hog hunting.

Hog hunting is high-volume, fast-paced, and often conducted at moderate ranges in challenging terrain. You're not making precision long-range shots in open country. You're scanning brush, picking up fast-moving targets, and often taking multiple shots in quick succession at a moving sounder. The ThOR 6 325's wider effective field of view relative to its lens length, combined with SharpIR AI enhancement and Hot Point Tracking, makes it exceptionally well-suited to this style of hunting.

The 384×288 sensor with ≤15mK NETD sensitivity is plenty of sensor for hog hunting inside 300 yards, and SharpIR closes the gap with higher-resolution scopes significantly. At realistic hog hunting distances, a seasoned hunter shooting the ThOR 6 325 and a hunter shooting the ThOR 6 635 are going to see very similar results on target. The 635's resolution advantage becomes meaningful primarily at distances where hog hunting rarely occurs in practice.

The weight advantage matters more than it sounds. At 1.74 lbs, the ThOR 6 325 is lighter than the 635 by 0.09 lbs, but it's also shorter at 410mm versus 430mm. Over a long hunt covering serious ground, a lighter, more compact scope on a rifle improves handling and reduces fatigue. When you're swinging quickly to pick up a moving hog at 80 yards in the dark, that balance matters.

From a value standpoint, the ThOR 6 325 delivers the full ATN 6th Generation experience, including SharpIR, RAV, Hot Point Tracking, Wi-Fi, 64GB storage, 9-hour battery life, and IP67 weatherproofing, at a lower price point than the 635. For hog hunters who want the best thermal technology available without paying a premium for resolution performance they won't use at typical engagement distances, the 325 is the clear choice.

Thermal Scope Comparison 2026: ATN ThOR 6 325 vs. ThOR 6 635 Side by Side

• Sensor Resolution: ThOR 6 325 — 384×288 | ThOR 6 635 — 640×512
• Lens: ThOR 6 325 — 25mm F/1.0 | ThOR 6 635 — 35mm F/1.0
• Field of View: ThOR 6 325 — 10.53° × 7.91° | ThOR 6 635 — 12.52° × 9.41°
• Magnification Range: ThOR 6 325 — 2.5-20× | ThOR 6 635 — 2-16×
• Detection Range: ThOR 6 325 — 2,300m | ThOR 6 635 — 3,100m
• Weight: ThOR 6 325 — 790g / 1.74 lbs | ThOR 6 635 — 830g / 1.83 lbs
• Dimensions: ThOR 6 325 — 410 × 85 × 66mm | ThOR 6 635 — 430 × 85 × 72mm
• NETD: Both — ≤15mK
• Pixel Pitch: Both — 12μm
• Display: Both — 0.49" OLED, 1920×1080
• Battery Life: Both — ~9 hours
• SharpIR AI: Both — Yes
• Hot Point Tracking: Both — Yes
• RAV: Both — Yes
• Wi-Fi: Both — Yes
• Internal Storage: Both — 64GB
• IP Rating: Both — IP67

ATN vs Pulsar Thermal: Where ATN's Feature Set Stands Out

When evaluating the ATN vs Pulsar thermal question in 2026, the core competitive differentiator is smart feature integration. Pulsar builds excellent thermal sensors and delivers strong imaging performance across their product line. Where ATN consistently pulls ahead is in the depth of integrated smart features built directly into the scope itself.

RAV, integrated ballistic calculator with multiple weapon profiles on LRF models, 64GB internal storage with no SD cards required, built-in Wi-Fi hotspot with app connectivity, Hot Point Tracking, Zeroing Freeze, PIP, and SharpIR AI imaging, all of these features are native to the ATN platform. Pulsar offers some comparable features, but the level of integration and the software ecosystem that ATN has built around the ThOR 6 series gives hunters a more complete and connected system out of the box.

For hog hunters specifically, the RAV feature alone is a significant practical advantage. Documenting shots automatically without any button interaction keeps your focus where it belongs, on the next hog in the sounder, not on managing your recording device. ATN built these features for hunters, and it shows in how well they translate to real field scenarios.

That said, the thermal scope comparison 2026 is more competitive than it has ever been. Pulsar's Thermion 2 series remains a serious competitor at the top end, and hunters should evaluate both brands carefully. But for the price-to-feature ratio at the ThOR 6 325's price point, ATN is extremely difficult to beat in 2026.

Who Should Buy the ThOR 6 635 Instead?

To be fair to the ThOR 6 635, there are specific hunters for whom it's the better choice. If you regularly hunt large agricultural tracts in South Texas or the Midwest where shots on hogs can push past 300 to 400 yards, the 640×512 sensor's superior resolution at distance is worth the investment. If you're using this scope for dual-purpose duty across hog hunting and long-range predator work on coyotes at extended distances, the 635's additional resolution and detection range give you meaningful performance gains.

The ThOR 6 635 is also a strong choice for hunters who want maximum image detail for video content creation. The higher pixel count produces footage with more visible detail, which matters if your hunts end up shared widely online. But for the average hog hunter focused on effective, ethical hunting performance in typical conditions, the 325 covers the mission completely.

The Bottom Line: Best Thermal Scope for Hog Hunting in 2026

Choosing the best thermal scope for hog hunting in 2026 comes down to matching the scope's performance profile to the actual demands of the hunt. The ATN ThOR 6 325 matches the demands of hog hunting better than the ThOR 6 635 for most hunters. It's lighter, carries more maximum magnification, delivers more than enough sensor sensitivity with ≤15mK NETD and SharpIR AI enhancement, and brings the complete ATN feature suite at a lower price point.

The ThOR 6 635 is an exceptional scope. But exceptional at things that don't always matter in a hog hunting context. The 325 is exceptional at the things that do matter: quick target acquisition, sharp thermal imaging at realistic engagement distances, smart feature integration that keeps you hunting instead of managing your optic, and durable field-ready construction that takes abuse without complaint.

If you're serious about running thermal on hogs in 2026, the ATN ThOR 6 325 is your scope. It's purpose-built for exactly this kind of work, and it delivers every tool you need to hunt smarter, hunt longer, and shoot more accurately in the dark. Get one before season kicks into high gear, and stop leaving hogs behind because your optic couldn't keep up.