Thermal riflescopes used to be reserved for military budgets and people who didn’t blink at five-figure price tags. That’s changed, and the ATN ThOR 4 384 is one of the biggest reasons why. At roughly a third of the price of premium thermal optics, it promises a surprising amount of capability — ballistic calculators, video recording, rangefinding reticles — wrapped in a package that actually mounts to your hunting rifle.

We’ve been running the ThOR 4 384 for several months across Texas hog hunts, Midwest coyote stands, and backyard testing sessions. We wanted to answer a simple question: is the cheapest “real” thermal scope actually good enough to trust on a hunt? Here’s what we found.

Who Should Buy the ATN ThOR 4 384

This scope exists for a specific buyer: the hunter who wants to break into thermal without mortgaging the truck. If you’re running predator control on hog-infested ranch land, setting up over bait stations at night, or calling coyotes in the dark, the ThOR 4 384 gives you genuine thermal capability at a price point that doesn’t require justification to your spouse.

It’s also a solid choice if you’re curious about smart scope features — the ballistic calculator, video recording, and reticle options are legitimately useful, not just spec-sheet filler.

Skip this scope if: You need to identify targets at 400+ yards consistently, you’re shooting fast-moving targets where refresh rate matters, or you’ve already used premium 640-resolution thermals and know you can’t go back. If that’s you, look at our Pulsar Thermion 2 review for a step-up option.

Key Specifications

Detailed Performance

Image Quality

Let’s address the elephant in the room: 384x288 resolution is the ThOR 4’s biggest limitation, and it’s one you’ll notice. Compared to 640x480 sensors found in the Pulsar Thermion 2 or FLIR ThermoSight Pro, the image is noticeably softer. At close range — inside 150 yards — this barely matters. Hogs are clearly identifiable, you can distinguish between animals and environmental heat signatures, and shot placement is straightforward.

Beyond 200 yards, things get murkier. We could consistently detect heat signatures at 400+ yards, but identifying what we were looking at required patience, digital zoom, and sometimes just waiting for the animal to move into a recognizable profile. On a 300-yard coyote stand, we could pick up dogs approaching but had to let them close to around 200 yards before we felt confident in the ID.

The 30Hz refresh rate compounds this. At 60Hz, your brain fills in detail because the image updates smoothly. At 30Hz, there’s a subtle but perceptible lag — almost like watching slightly choppy video. On a stationary hog at a feeder? Doesn’t matter. On a coyote trotting across a field? You’ll notice the stutter, and it makes precise shot timing harder than it should be.

Color palettes help. We found the White Hot mode delivered the best overall image for target identification, while Black Hot was easier on the eyes during extended glassing sessions. The scope offers multiple palette options, and we’d recommend experimenting during your first few outings to find what clicks for your eyes.

Detection Range

ATN rates the ThOR 4 384 for detection out to around 1,250 yards. In our real-world testing, that number is optimistic for anything practical. We consistently detected large heat signatures (vehicle-sized) at 800+ yards, but for hunting-relevant targets, here’s what we actually experienced:

• Hog-sized targets: Reliable detection at 350-400 yards, reliable ID at 200-250 yards
• Coyote-sized targets: Reliable detection at 250-300 yards, reliable ID at 150-175 yards
• Deer-sized targets: Reliable detection at 400-500 yards, reliable ID at 250-300 yards

These numbers drop when thermal contrast is low — humid summer nights where ground temperature stays close to body temperature are the worst-case scenario. Cool, dry nights in fall and winter are where this scope performs its best.

For context, premium 640-resolution scopes extend these ranges by roughly 30-40%. That’s significant if you’re hunting open country, but for the dense brush and 200-yard shots that define most hog hunting, the ThOR 4’s range is adequate. Check our best thermal scopes for hog hunting roundup for a side-by-side comparison of effective ranges.

Smart Features

This is where ATN earns real points against the competition. The ThOR 4 384 packs a feature set that you’d expect from a scope costing significantly more:

Ballistic Calculator: ATN’s built-in ABL (Auxiliary Ballistic Laser) system integrates with an optional rangefinder to provide real-time holdover data. Even without the add-on rangefinder, the standard ballistic calculator lets you input your load data and get corrected reticle positions. We found it reasonably accurate inside 300 yards after proper zeroing — not a replacement for knowing your drops, but a genuinely useful backup.

Video Recording: The scope records 1080p video directly to an onboard micro SD card. This is a game-changer for reviewing shots, sharing hunts, and — practically speaking — proving you shot the right animal in low-light conditions. The video quality won’t win any cinematography awards, but it’s more than adequate for documentation and social sharing.

Wi-Fi Streaming: You can stream the scope’s view to your phone via ATN’s Obsidian app. We used this for showing hunting partners what we were seeing without passing the rifle around. It’s also useful for spotting — mount the ThOR 4, stream to a phone, and have a buddy call out targets while you stay behind the rifle.

Rangefinding Reticle: The stadiametric rangefinding reticle lets you estimate range based on target size. It works, but it requires you to know the approximate size of your target and do some mental math. It’s a backup system, not a primary rangefinding solution.

User Interface

Here’s where our enthusiasm cools. The ThOR 4’s menu system is functional but frustrating. Navigation uses a control ring on the scope body, and inputs sometimes lag by a second or more. When you’re fumbling through menus in the dark with gloves on, that lag becomes genuinely annoying.

The initial setup — zeroing, configuring profiles, setting up Wi-Fi — took us about 45 minutes, which isn’t unreasonable for a smart scope but is a far cry from mounting a traditional optic and being ready to shoot. ATN’s firmware updates have improved responsiveness over time, and we’d strongly recommend updating to the latest firmware before your first outing.

Once you’re past setup and into actual hunting mode, the interface fades into the background. Power on, select your profile, and you’re looking through a thermal scope. The day-to-day operation is straightforward — it’s the configuration and menu-diving that tests your patience.

Battery Life

ATN claims 18+ hours with the internal battery, but our testing landed closer to 10-12 hours of continuous use with Wi-Fi off and recording disabled. With recording active, expect 7-9 hours. Adding the optional external battery pack extends this meaningfully — we got through full weekend hunting trips without worrying about power.

The internal battery charges via micro USB, which feels dated in 2026 when everything else has moved to USB-C. It’s a minor gripe, but it means carrying one more cable. Plan to charge between hunts, and carry the external pack for multi-night sessions.

Benchmark Score Breakdown

We score every optic against our standardized testing methodology to ensure consistency across reviews. Here’s how the ThOR 4 384 breaks down:

• Image Quality: 6.5/10 — Adequate for close-to-mid range, but the 384 sensor and 30Hz refresh hold it back against 640-class competition
• Detection Range: 6/10 — Usable for typical hog and predator hunting distances, but falls short for open-country work
• Smart Features: 9/10 — Best-in-class feature set at this price point, bar none
• Build Quality: 7.5/10 — Solid construction with adequate weatherproofing, though it doesn’t feel as bomb-proof as Pulsar or FLIR housings
• Value: 8.5/10 — The defining strength — genuine thermal capability at an accessible price
• User Interface: 6.5/10 — Functional but sluggish; firmware updates help but don’t fully resolve the lag

Overall: 7.4/10

The score reflects a scope that punches above its weight on features and value while honestly trailing on the core imaging metrics that matter most in the field. For the full picture on how we arrive at these numbers, see our testing methodology.

How It Compares: ATN ThOR 4 384 vs. Pulsar Thermion 2

The Pulsar Thermion 2 is the scope we most often see compared to the ThOR 4, and it’s the natural upgrade path. Here’s the honest comparison:

The Thermion 2 wins on image quality — its 640x480 sensor and 50Hz refresh rate produce a noticeably cleaner, smoother image. Target identification at range is meaningfully better, and the higher refresh rate makes tracking moving targets far less frustrating. Build quality also favors Pulsar, with a more traditional scope form factor and buttery-smooth controls.

The ThOR 4 wins on features per dollar. The ballistic calculator, video recording, and streaming capabilities either aren’t available on the base Thermion 2 or require stepping up to significantly more expensive Pulsar models. And the price gap is substantial — you could buy the ThOR 4 and a quality traditional scope for the price of the Thermion 2 alone.

Our take: If you’re committed to thermal hunting and can stretch the budget, the Thermion 2 is the better scope. If you’re testing the waters or need to outfit multiple rifles, the ThOR 4’s value proposition is hard to argue with. Read our full Pulsar Thermion 2 review for the complete breakdown.

Frequently Asked Questions

Is the ATN ThOR 4 384 good enough for hog hunting?

Yes — with realistic expectations. For the typical hog hunting scenario (feeders, senderos, dense brush at sub-200-yard distances), the ThOR 4 384 is more than capable. You’ll clearly identify hogs, place shots accurately, and record the action. Where it falls short is open-field detection at extended range. If your hunting involves scanning vast open areas for hogs at 300+ yards, you’ll want the 640 resolution of a higher-tier scope. For most Texas and Southern hog work, though, the 384 sensor gets the job done.

Should I buy the 384 or 640 version of the ThOR 4?

If the budget allows, the 640 version is the better scope — full stop. The resolution jump to 640x480 significantly improves target ID at range and overall image quality. However, the price difference is substantial, often $1,500-2,000 more. If that gap matters to your budget, the 384 version is a genuinely capable scope on its own, not a crippled version of the 640. Buy the 384 if it means getting into thermal now rather than saving for another season.

How does the ATN ThOR 4 hold zero?

In our testing, the ThOR 4 held zero reliably across several hundred rounds of .308 and 6.5 Creedmoor. We re-confirmed zero every few outings and never saw drift beyond 0.5 MOA. ATN’s electronic zeroing system is actually one of the scope’s strengths — it’s faster and more intuitive than mechanical adjustments on traditional optics. Just be aware that a hard impact (dropping the rifle, etc.) warrants a zero check, as with any optic.

Can I use the ATN ThOR 4 during the day?

Yes, and this is an underrated advantage. Unlike dedicated night-vision devices, thermal scopes work in any lighting condition. We used the ThOR 4 on daytime predator hunts with good results — the thermal image actually makes spotting bedded coyotes in tall grass easier than traditional glass in some conditions. The scope won’t replace a quality daylight optic for precision work, but its dual-use capability means you’re not buying a tool that sits in the safe six months of the year.

What accessories are essential for the ATN ThOR 4?

We’d consider three accessories near-mandatory: a quality micro SD card (Class 10 or higher for reliable recording), the external battery pack for extended hunts, and a proper scope mount rated for the ThOR 4’s weight — it’s heavier than a traditional scope, and a cheap mount will cause zero issues. The optional ABL rangefinder is nice to have but not essential if you already carry a handheld rangefinder. Skip the Bluetooth remote — the phone app does everything it does and more.

Final Thoughts

The ATN ThOR 4 384 isn’t trying to compete with $5,000+ thermal scopes on image quality. It doesn’t need to. What it does is bring legitimate thermal hunting capability to a price point that opens the door for hunters who’ve been watching from the sidelines.

We’ve used it to stack hogs on South Texas ranches and call coyotes on frozen Kansas fields. It performed. Not flawlessly — the resolution limitations are real, the menus are clunky, and the refresh rate will frustrate you on fast movers. But it performed, and for a scope that costs what a decent traditional riflescope costs, that’s a meaningful achievement.

If thermal hunting has been on your list and budget has been the barrier, the ThOR 4 384 is the scope that removes that excuse. Just go in with clear eyes about what 384 resolution and 30Hz deliver, and you’ll be rewarded with a genuinely capable tool that makes night hunting possible without a premium price tag.

For more on how we evaluate thermal optics and what our scores mean, visit our methodology page. And for a broader look at the thermal scope landscape, check our hunting optics hub for the latest reviews and roundups.

Check Price — ATN ThOR 4 384 4.5-18x