Night vision vs thermal: which do I need?

These do different jobs and many people end up using both.

Digital night vision detects near-infrared light and shows you a detailed image. It's better for recognising what you're looking at: identifying species, reading signs, navigating terrain. It needs an IR light source to work in true darkness, which most Nightfox night vision devices provide with a built-in LED.

Thermal detects the heat given off by warm objects. It's far better at detecting things at distance because warm bodies stand out against cool surroundings. Thermal can see through light vegetation and works in total darkness without any illumination. The tradeoff is lower resolution and less visual detail.

In short: night vision is best for identifying, thermal is best for detecting. If you only want one, choose night vision for general use or thermal for serious wildlife or ecology work. For a head-mounted thermal option look at the Nightfox Arctic; for handheld thermal look at the Thermal Master DV2.

Which Nightfox is best for airsoft?

Most airsoft players want something hands-free, robust and that lets them keep some natural night vision. Our top picks:

• Nightfox Prowl 2: our most popular airsoft choice. It's a monocular so you keep peripheral vision in your uncovered eye, it's helmet-mountable, IP65 waterproof and has detachable lenses giving up to a 105° field of view.

• Nightfox Prowl: a simpler monocular at a lower price point. A good entry point for players who don't need the Prowl 2's wider FOV or weatherproofing.

• Nightfox Arctic: our first thermal helmet-mountable monocular. Useful for detecting opponents in camouflage. Wearing this, you won't give off an infrared light signature to digital night vision users.

For setup tips and tactical advice, see our blog posts How to use the Prowl 2 for Airsoft and Thermal vs Night Vision for Airsoft.

Which Nightfox is best for bat surveys and ecology?

Ecologists tend to need video recording, a wide field of view and the ability to feed audio (such as from a bat detector) into the recording. Our recommended options:

• Nightfox Whisker: our bestselling device for ecology, the Whisker has an adjustable optical zoom and a wide field of view (up to 57°). It has a large 5000mAh battery for five hours of constant use.

• Nightfox Nova: launched in 2026, the Nova is our flagship unit for ecology. Using the renowned Sony Starvis sensor to deliver crisp images, it also features a microphone jack for bat detector input, HDMI output for external monitoring on a field monitor, an IP54 rating and a removable wide-angle lens (up to 70° viewing angle).

• Nightfox Arc: a powerful IR floodlight designed to be ground-placed to illuminate a wide area for surveys. Pairs well with any of our night vision devices.

For the latest guidance on conducting surveys, see our blog post BCT Bat Survey Night Vision Guidelines 2026.

Which Nightfox is best for watching wildlife?

For wildlife watching from a fixed position, handheld binoculars give you optical zoom and a comfortable, stable image. Our recommended options:

• Nightfox Whisker: 1x to 10x adjustable zoom with 300m range, well suited to spotting animals at distance.

• Nightfox Vulpes: our most feature-rich wildlife binocular. Includes an integrated laser rangefinder giving confirmed distances up to 220 yards, plus audio recording.

• Nightfox Ember: our most beginner-friendly option. Large screen, automatic IR activation, easy to use.

Which Nightfox is best for stargazing or seeing the northern lights?

Night vision can dramatically enhance what's visible in the night sky, particularly faint phenomena like the Northern Lights. Most digital night vision binoculars or monoculars will work well for this purpose. The Nightfox Whisker and Nightfox Vulpes are popular thanks to their zoom and range, and the Nightfox Ember is a good budget-friendly starting point.

For a real-world account see our blog post Can You Use Night Vision to See the Northern Lights?

Which Nightfox is best for camping, hiking and general night adventures?

For general outdoor use a head-mounted device leaves your hands free for moving around. Our recommended options:

• Nightfox Swift 2: our most versatile general-purpose goggle. Hands-free, head-mount included, good image quality at a sensible price.

• Nightfox Swift 2 Pro: all the great features of the Swift 2, adds video and photo recording so you can document trips. Includes a 32GB memory card.

• Nightfox Prowl 2: a lighter monocular option that lets you keep one eye adjusted to natural conditions, useful for switching between viewing and moving around camp.

Can I use Nightfox for property security?

Yes, customers do use our products for property monitoring and security purposes, though it isn't our primary focus. A handheld binocular like the Nightfox Vulpes, Whisker or Nova is typically more useful for this purpose than head-mounted goggles, as you'll generally be observing a specific area rather than moving around in the dark.

Which Nightfox is best for recording video at night?

The following devices record video to a microSD card:

• Nightfox Swift 2 Pro: hands-free recording from a head or helmet mount. Includes a 32GB memory card.

• Nightfox Nova: handheld recording, utilising a Sony Starvis sensor for the best video image. The Nova is designed to monitor your immediate surroundings rather than objects further away.

• Nightfox Prowl 2: handheld recording, using the same Sony Starvis sensor and wide field of view found in the Nightfox Nova.

• Nightfox Vulpes: handheld recording with audio and a built-in laser rangefinder. With 5x magnification, it's the best for recording objects far away.

• Thermal Master DV2: handheld thermal recording with a touchscreen interface.

• Nightfox Arctic: head-mounted thermal recording at a lower resolution.

• Nightfox Ember: an entry level product, recording footage at a slightly lower frame rate than our other products.

Which Nightfox is best for staying covert?

If you need to observe without giving away your position, you want to minimise visible IR glow. Two routes:

• Nightfox Swift 2 Pro: a night vision device combining 850nm and 940nm IR LEDs. The 940nm LED produces virtually no red glow, making it the most covert digital night vision option in our range.

• Nightfox Prowl 2: like the Swift 2, the Prowl 2 also combines 850nm and 940nm IR LEDs, with the latter producing virtually no red glow. Thanks to the Prowl 2's sensitive Sony Starvis sensor, a very low level of IR is required to see.

• Nightfox Arctic or Thermal Master DV2: thermal devices are the ultimate tools for staying covert. There is no IR bulb to give off a visible red glow. Since no IR light is emitted, other night vision devices can't detect you.

Goggles or binoculars: what's the difference?

Goggles are designed to be worn on the head or helmet, freeing up your hands. Our goggles use a single internal screen viewed through an eyepiece and are best suited to people moving around in the dark: airsoft, hiking, fieldwork. Our Swift Series models, like the Swift 2 and Swift 2 Pro, cover both eyes. Our Prowl and Arctic series, like the Prowl 2 and the Arctic, cover just one eye. While devices that cover both eyes are more immersive, devices that cover just one eye allow you to retain some natural eye vision in the other. It's also easier to keep higher levels of situational awareness when your device covers just one eye.

Binoculars are handheld and typically offer high levels of optical magnification, making them better for observing wildlife or distant objects from a stationary position. Examples: Vulpes, Whisker, Ember. While the Nova comes in a binocular form, its low magnification and wide field of view make it ideal for observing objects and animals in your immediate surroundings, as opposed to in the distance.

The names can be misleading: the Prowl 2 is called a goggle but is actually a monocular, and the Whisker is called a binocular but is a handheld observation tool. The key question is hands-free vs handheld.

Monocular or binocular: which should I choose?

Monocular (single eyepiece, one eye covered) lets your uncovered eye stay adjusted to ambient light. This is preferred by many airsoft players and for situations where you'll be switching between observing and moving around. The Prowl and Prowl 2 are our monocular options.

Binocular (both eyes covered) gives a more immersive image and is less tiring on long observation sessions because both eyes have something to look at. Our Swift family of head-mounted goggles is binocular.

Do I need a separate IR torch?

In most cases, no. All our digital night vision devices have a built-in IR LED that's sufficient for typical viewing ranges. A separate IR torch becomes useful when:

• You want to see significantly further than the built-in LED allows. Options: XB5 Pro, Spectrum.

• You're conducting an ecology survey and want to illuminate a wide area from a fixed position. Option: Nightfox Arc.

• You want different IR wavelengths for different conditions (covert vs maximum range). Option: Spectrum, which has three switchable LEDs.

Thermal devices don't need any IR illumination at all.

Head-mounted, helmet-mounted or handheld?

Head-mounted (with a strap) is the most accessible option. No additional kit needed beyond the device. Suits hiking, fieldwork and casual airsoft.

Helmet-mounted is preferred by serious airsoft players and anyone wearing a helmet for other reasons. Most of our head-mountable devices can be helmet-mounted using the included dovetail adaptor with a G24-style mount, like the Nightfox N247.

Handheld (binoculars, monocular torches, thermal cameras) is best when you're observing from a fixed position rather than moving around, and when you want optical zoom or the ability to set the device down.

Can't find what you're looking for? Contact our team and we'll be happy to help, or browse our full range on the product comparison page.