10 Best Monoculars 2025 in the United States

The Leica 8x20 Waterproof Monovid Monocular is a compact and well-built device that caters to outdoor enthusiasts, particularly those interested in activities like hunting or nature observation. With an 8x magnification and an objective lens diameter of 20mm, it offers a decent level of detail and clarity for its size. The waterproof feature, along with a nitrogen-filled construction, ensures the monocular performs well in varied weather conditions, preventing fogging and moisture-related issues. The AquaDura lens coating enhances visibility by repelling water and dirt, making it easier to maintain even in rugged environments.

One of the standout features is its close focusing ability, allowing users to focus on subjects as close as 1.8 meters, or even closer with the included close-up converter lens. This makes it particularly versatile for observing small details in nature or wildlife. The compact size and lightweight design (weighing only 0.9 pounds) make it easy to carry around, fitting comfortably in a pocket or bag.

The 20mm objective lens may limit light-gathering capabilities compared to larger monoculars, which can affect performance in low-light conditions. Additionally, while the central focusing knob is user-friendly, some users may prefer a more precise focusing mechanism. The price point may also be considered high for casual users, as Leica is known for its premium quality. The Leica 8x20 Monovid is a great choice for those who prioritize portability and waterproof features in a monocular. Its close-up capabilities and high build quality make it ideal for serious outdoor enthusiasts, though those needing more powerful magnification or low-light performance may want to explore other options.

The ZEISS Conquest Mono Monocular 4x12 is a compact and lightweight option, weighing just 113 grams and measuring about 4.7 inches tall, making it easy to carry on nature walks, concerts, or sporting events. Its 4x magnification is moderate, offering clear and steady views without the shakiness often found in higher magnifications, which is great for casual observing or reading small details like maps or timetables.

The 12mm objective lens is on the smaller side, so while it keeps the monocular very portable, it may not gather as much light as larger lenses, making it less ideal in very low-light conditions. However, the ZEISS T* lens coating enhances image brightness and contrast, especially in tricky lighting or twilight, ensuring sharp, vivid views. The monocular also has fixed focus with a diopter adjustment of ±4, allowing some fine-tuning for clearer vision depending on your eyesight.

With its durable aluminum body and German engineering, it offers reliable build quality. This monocular is well suited for users looking for a handy, versatile device for close to medium-range viewing in mostly good weather, rather than those needing high magnification or extreme weather protection.

The Zeiss 10x25 T* Design Selection Monocular is a compact and lightweight option, weighing only 88 grams, making it highly portable for nature excursions, concerts, or sporting events. With a 10x magnification and a 25mm objective lens diameter, it offers a good balance between zoom and light intake, which is enhanced by the ZEISS T* Coating for brilliant, high-contrast images even in low light conditions. The monocular is particularly suited for outdoor activities as it is designed to provide clear views in varying weather conditions.

The Schmidt-Pechan roof prism design ensures a straightforward and compact construction, which makes handling easier. Additionally, the diopter adjustment of +/-4 adds to the customization for individual users' eyesight needs. However, the monocular is manually focused, which might not be as quick as automatic focusing mechanisms in fast-paced scenarios. The included pouch is a useful addition for protection and portability.

This monocular seems best suited for those who value portability and high image quality in a compact design, especially for casual outdoor use or events rather than for extensive or professional use.