Best Thermal Scope Under 5000 in 2021 (Reviewed by Expert)

Reviewed by Rob Monster
Rob Monster

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Best Thermal Scope Under 5000

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The popularity of thermal scopes has extended from soldiery individuals to hunters. Thermal imaging devices will keep up with the thrill and excitement during the night hours too. You will be free from night vision scopes that might not be accurate in low light conditions using the thermal rifle scopes. Earlier, the thermal scopes were expensive. But today, the advancement of technology like compact sensors and increasing fame of the thermal scopes have brought their prices down.

Various manufacturers use a variety of technologies, sensors, and optics. Knowing the proper scope for yourself is not an easy task. We are here to help you out. After reading the below writing, you will find the best fit for yourself from the best thermal scopes and compare among different scopes with ease.

Quick Look

1. ATN ThOR 4 1.25-5x, 384×288, Thermal Rifle Scope

THor HD 384 thermal optic mentioned above is a complete package of high tech features. Let us have a look at the table of contents of its features. ATN Thor 4 has proved as an excellent choice for beginners or freshers in hunting. This rifle scope is water-resistant, but if you are out when it’s raining cats and dogs, the thermal optic might get damaged.

Considering other thermal optics, this imaging device is light weighted. It weighs around 1.55 lbs. The high-resolution features ensure crisp image quality and perfect contrast even in dim light conditions. Wi fi and Bluetooth are other major attractions. The battery is 20000 mAH that gives a battery life of 22 hours for continuous use.

The thermal imaging scope has a small lens of 19mm and imaging sensors of low resolution; it will perform well for only short-range targets at a distance of approximately 100 yards.

If you want to aim for more long-distance targets, other magnification variants like 2-8x, 4.5-18x are available. But keep in mind that higher magnification can affect the image quality too.

A ballistic calculator accompanies the scope to have an insight into the humidity and temperature differences. It also helps to calculate the angle of the target so that you never miss the shot.

The thermal scope also has a short video recorder, and you can play those videos on your mobile device and store them on an SD card. Thor HD 384 rifle scope also has a range finder and is easy to use than a separate one. If you want to have a more advanced thermal optic, you can go for ATN Thor HD 640.


Advanced technology.
Math calculations made easy.
Video recording and storing facility.


Image quality issues with higher magnification variants.

2. TheOpticGuru Thor LT Thermal Scope

The prices of thermal imaging scopes can be daunting at times. However, it’s quite surprising that theOpticGuru Thor LT is the best thermal optic alternative for any hunter who does not want to disturb his budget. The thermal scope is made of strong aluminum, and it’s durable, powerful, and lightweight. With this rifle scope on your gun, focusing on the target is not a headache. The scope operates in two modes black-hot mode and white-hot mode. Users can switch among these modes according to their requirements. The thermal optics of this imaging scope provides a distinct view for long distances.

Any rifle scope with a refresh rate of higher than 30Hz is an excellent option for hunting, and Thor LT has a refresh rate of 60Hz. Thus, the scope refreshes images, again and again, to provide you the best image quality, even for targets in motion. Thor LT has a lithium-ion battery with a battery life of 10hrs for continuous use. Though the scope lacks some advanced features like wi-fi, Bluetooth, and ballistic calculators, it still does an excellent job. The thermal optic knows well how to do its task even in dark conditions. This thermal imaging device has the best value for the money.


Impressive design.
Highly lightweight.
Good value for money.
Two modes of operation.


Features like wi-fi and Bluetooth are missing.

3. ATN ThOR 4 4-40x, 640×480, Thermal Rifle Scope

This is one of the other thermal imaging systems with numerous features that showcase technology advancement. If the hunting scope is out of battery, the entire venture can be ruined, but ATN THOR HD 640 consumes less power. It comes with a battery life of 16 hours. ATN is known for making night vision and thermal scopes, and THOR HD 640 will be your best friend through the forest during the dark hours. The ATN rifle scope has a robust design; it’s durable and reliable. Moreover, it’s waterproof and can stand extreme weather conditions.

It has a GPS and a wi-fi feature with it so that you can share your experiences and adventures with others online. The ballistic calculator and the range finder do all the mathematics and adjustments required to accurately hit the target. ATN THOR HD 640 has a cutting edge Obsidian T II Thermal core processor and a sensitive sensor. Thus, the target’s heat can be caught in the environment, and a clear thermal image of the target can be viewed. These scopes also have video recording and photo features that can be viewed and shared via mobile devices. Not all the scopes can withstand the high pressure of being mounted on advanced weapons, but ATN THOR HD 640 is one.


Long-lasting battery.
Rugged and lightweight design.
High-tech features.
Ease in operation.


Not the best daytime scope.

4. Athlon Optics, Argos BTR, Riflescope, 8-34 x 56 First Focal Plane (FFP) 30 mm Tube, Illuminated ATMR MOA Reticle

With this rifle scope, you do not have to spend too much time trying to focus before shooting. That’s because this scope allows you to quickly and easily acquire your target. Moreover, it increases your accuracy. Besides that, it has a magnification of 3.4-10x and a zoom ratio of 3:1.

This rifle scope is designed to maximize light transmission due to its red and blue lens coating. Another great feature of this rifle is its long and generous eye relief. The best part is that it has a twilight light management system which enables you to see high contrast images.


This rifle scope is quite durable.
This hunting rifle scope is shockproof, waterproof, and fog proof.
This scope has generous eye relief.


This scope has no CDS turrets.

Must-Know things before buying a thermal scope


Thermal scopes are normally quite expensive. The money you should spend on the thermal scope depends on your requirement. If you are a beginner, a basic thermal scope will do. If you are an expert hunter, you can look for a high-tech, advanced, and expensive thermal scope.

Scope resolution and sensor

Low-resolution scopes will produce unclear images. However, the resolution of the thermal scope should be more than the resolution of the thermal sensor. If so, the images created will crisp, distinct, and of pretty much high quality. On the other hand, if the resolution of the scope and sensor is the same, image quality is not good.


This feature depends on your hunting type and scope’s capabilities. If you have to spot the targets at a greater distance, then go for a large magnification thermal. However, it would be best if you kept in mind the magnification greatly affects the image quality. Image quality and magnification are inversely proportional to each other. Thus, choose accordingly.

Refresh rate

In simple words, refresh rate means the number of times the image refreshes per second. It is generally determined by the time taken by the thermal processor to refresh the image. In other words, a higher refresh rate ensures more clear and accurate images.

Battery Life

The life of your battery plays a prominent role in determining how your entire adventure will be. Depending on the hours you hunt, choose how long the battery should last. Approximately 3 to 4 hours of battery life is suitable for a short hunting adventure. Simultaneously, there are Li-ion batteries that can last up to 8 hours for a longer hunting duration. Nowadays, rechargeable batteries are also available.


Buying thermal scopes was not a cakewalk earlier as they were quite expensive. But due to their increasing popularity and advancement in technology, they are now available at all price points. We have tried to list some of the best thermal scopes under 5000 in the above writing. Thermal optics can get complicated due to many high-tech features, while some can be very easy to operate. Every optics has its own pros and cons, and we have mentioned them for the respective devices listed above. Please go through the entire article, find out your favorite thermal rifle scope, and let us know about it.

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