Vortex Optics Solo Monocular Review: Pros & Cons

Do you want an affordable, yet heavy-duty, spotting scope design for the outdoors? The rubber-armored Vortex Optics Solo Monocular makes a great choice for hunting, backpacking and birdwatching.

Vortex Optics Solo Monocular Features

My Vortex Optics Solo 10x25mm Review:

The Vortex Solo 10x25mm is a compact monocular built for the outdoors. What immediately stands out is the rugged rubber armor exterior, which gives you a firm, non-slip grip—even in wet or sweaty conditions. The tough outer shell not only resists wear and tear, but also acts as shock protection, so you won’t stress if it slips from your hand or gets knocked around during a hike.

Another smart feature is the included lanyard attachment, allowing you to wear it around your neck or clip it to your backpack or belt loop. That makes the Solo ideal for activities where you need quick access to your optics—whether you’re birdwatching on a trail, scanning the horizon from a ridgeline, or watching wildlife in the distance. You’ll always know where it is, and more importantly, it’ll be ready when you need it.


Get the Solo Monocular here for less than $60

One of the most convenient things about this monocular is that it’s fully operable with one hand. The focus wheel and twist-up eyecup are positioned right where your index finger naturally rests, making quick adjustments smooth and intuitive. For those who wear glasses, the adjustable eyecup easily twists in or out to give you a comfortable, full view without removing your eyewear.

For under $60, this monocular packs a lot of durability and functionality into a small, go-anywhere package. It’s the kind of optic you can take on any adventure, without having to baby it or leave it behind. Whether you’re navigating rugged trails or just want a compact zoom for everyday use, the Vortex Solo 10x25mm delivers reliable performance in a portable design.

How is the Scope Viewing Quality?

Vortex Optics designed this monocular using fully multi-coated lenses. In other words, you get brighter and clearer images because the scope can receive more light. This also helps with seeing small details.

Lenses without coating will reflect light off of their surface, therefore losing light. Multi-coated lenses, however, lose minimal light, which will brighten and enhance your viewing experience.

Note: For higher quality optical viewing, you want to look for multi-coated lenses VS fully coated or simply coated lenses. If you don’t mind paying extra money, you can go with higher-end scopes that feature “fully multi-coated lenses”.

Roof Prisms: What are the Pros & Cons?

The Solo Monocular features a roof prism system, which is known for its sleek, compact design. Unlike the bulkier Porro prism setups, roof prisms align the internal lenses in a straight line, allowing the monocular to be lighter, slimmer, and easier to carry—a major benefit if you’re hiking long distances or packing light.

Another advantage of roof prisms is that they’re easier to seal, making them a top choice for waterproof and fog-proof monoculars. That added durability makes roof prism scopes ideal for outdoor enthusiasts who may encounter rain, humidity, or sudden temperature changes during their adventures.

However, there are trade-offs. Roof prism designs are more complex to manufacture, which often means a higher price tag. They also tend to lose more light internally, since they require more reflections within the prism system. Without high-quality coatings, this can lead to slightly dimmer images—especially in low-light conditions.

That said, both roof and Porro prism monoculars can deliver excellent performance when properly made. You’ll find both styles used in high-quality scopes built for birdwatching, hunting, hiking, wildlife observation, and even sports events. Ultimately, the best choice depends on what you value more: the compactness and ruggedness of a roof prism or the brighter image and cost-effectiveness of a Porro prism.

Specs for the 10×25 Vortex Optics Solo Monocular:

  • Dimensions: 4.4″ Long x 2″ Wide x 2.4″ Tall
  • Weight: 5.6 Ounces
  • Waterproof: Yes
  • Fog-Proof: Yes
  • Field of View: 315 Feet at 1,000 Yards Away
  • Magnification: 10X
  • Lens Diameter: 25mm
  • Type of Prism: Roof Prism
  • Exterior Coating: Rubber Armored Green
  • Model #: S105
  • You can also get the Solo in 10×36, 8×25 and 8×36 Sizes
  • Manufacturer: Vortex Optics, Phone: 800-426-0048 Product Manual
  • Get the Solo Monoculars Here
Vortex Solo Optics 10x25mm Monocular

Note: This tactical scope does not come with mrad ranging reticle. Vortex Optics makes on to use in conjunction with the Razor HD 85mm spotter.

Last Updated April 5, 2025

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