
QinCoon Cell Phone Camera Lens
The Phone Telephoto Lens can zoom from 50 to 200 times, so it's perfect for taking group photos. We liked the simple, durable design and high-contrast images.
A high-quality telephoto lens for mobile devices, the Venir 20X Telephoto Lens is designed to let you zoom into distant subjects, or view subjects close up. Its 20X optical zoom, 10x digital zoom, and strong 4.5mm aperture help you get outstanding images. And thanks to its 50~200m shooting distance, you can capture distant subjects in high definition. The lens feels solid and has a decent amount of heft to it, and it includes a nice case with a belt clip. The lens has a ring around the front that allows you to adjust the focus of the lens, so if it misses your target or is too zoomed in, you can adjust the focus to achieve better image quality. You can also adjust the brightness of the lens, which is sometimes handy when there are cloudless days. The lens has a wide shooting angle of 60°. Overall, this is a great lens for taking high-quality pictures with your smartphone, though it comes in on the more expensive side.
This is a really good phone lens, the build quality is good, it's water and dust proof. The zoom really ranges as you adjust the focus. Also, it helps capturing images in dark condition, i.e. when shooting at night.

MIQIKO Smart Phone Lens Camera Kit
This phone lens kit gives you 4 lenses in one! The 4K HD optical 10X macro lens 0.4X wide - angle lens kit can be a best choice for you to take amazing pictures.
For a lens that has a high level of optical performance, this 4X macro lens from XHAG is affordable. The lens focuses down to 0.6X, achieving a good macro performance without being overly distorted. The color and contrast are good, and although it captures a lot of peripheral light, there's no significant loss of overall light. Both wide and narrow field of view lenses are available, and we tested both. The wide lens throws out a lot of light, so you'll probably want to use a tripod.

DIFOO Monocular Telescope 16X50 High Power HD Monocular for Smartphone Adults for Hunting Watching Bird Equipped with iPhone Holder Tripod BAK4 Prism and IPX7 Nitrogen-Filled Waterproof
Best value in monoculars, these binoculars are an aggressively priced option for budget-minded buyers. They also hold up well outdoors.
The Monocular Telescope DIFOO 16X50 features with BAK4 Prism and Fully Multi-Coated (FMC) covering. This monocular telescope is specially designed for smart phone users. It does not require Bluetooth connection or app installation. You can enjoy your leisure time anytime and anywhere with your kids. The 16x magnification magnification is suitable for bird watching, hunting, mountain climbing, wildlife and scenery, golf, shooting range, monitoring, concerts and travel.

Gosky 20-60x60 HD Spotting Scope with Carrying Tripod, Bag and Scope Phone Adapter
The Gosky BaK4 45 degree angled eyepiece view scope is well-made, has quality optics, and is sharp, even at far distances. The tripod and storage bag are high quality and do not rust.
Buying this spotting scope was one of the easiest and best decisions we've made in a long time, and it's a distinctly impressive performer. The Gosky 20-60x60 HD Spotting Scope with Tripod, Carrying Bag and Scope Phone Adapter - BAK4 45 Degree Angled Eyepiece Telescope for Target Shooting Hunting Bird Watching Wildlife Scenery does an excellent job of delivering bright images in almost any light. It's waterproof, and nitrogen purging keeps water out of the optical path, so it's virtually waterproof; the waterproof design also allows the scope to be left outside in damp or inclement weather. The Gosky also comes with a nice carrying case, an eyepiece cover, a cleaning cloth, a lens cloth, and a carrying bag, so it's ready for any excursion.

JUJUN 48x Hd Mobile Phone Macro Lens Zoom Telephoto Camera Tripod Telescope Alloy for iPhone 11 Pro Samsung Galaxy S9 Universal Clip
Jujun 48x hd mobile phone macro lens zoom telephoto camera tripod alloy telescope for iPhone 11 pro samsung galaxy s9 universal clip is a truly versatile lens. Whether you use it on your phone or your DSLR camera, this universal clip will help you take amazing pictures with a handheld phone.
The JUJUN 48X HD Mobile Phone Macro Lens Zoom Telephoto Camera Tripod Alloy Telescope for iPhone 11 Pro Samsung Galaxy S9 Universal Clip works great for phone and tablet cameras, and works well for shooting photos and video. The 48X magnification will help you take close-up shots, and the 90° angle allows you to get closer to the subject without distorting the image (you'll be looking down on the lens, not at your subject). It lets you focus in either object or distance. The adjustable focal length allows you to control the zoom, and you can also adjust the focus.

VIVREAL Monocular Telescope
This monocular features a tripod mount that lets you attach it directly to your scope. The scope of view is large, the quality of images is sharp, and it's lighter than most in our test; however, the 12x magnification of this product made it a challenge to focus on jellyfish and whales.
The Monocular Telescope  On Any Night, Any Weather, You Will Have A Wonderful View Through The Monocular Telescope. This 12X55 Monocular Telescope is Great For Almost Any Outdoor Adventure, Including Birdwatching, Hiking, Hunting, Camping And More. The Binocular Telescope Can Also Be Used For Watching Games, Concerts And Presentations. The Monocular Telescope Is Super Bright And Offers A 20mm Objective Lens For A Wide Angle View, And The Lens Is Protected By An Anti-Reflection Coatings To Prevent Glare. The Premium High End BaK4 Prism Is Superior To Other BaK-4 Prisms And Creates A Superior Image. The Monocular Telescope Is Lightweight And Easy To Carry, And With Precise Focus And A Focusing Range Of 0.5m To 20m, You Can Watch Your Target With Uncompromised Clarity. The High Powered Monocular Telescope Has A Built-in 3.5mm Female Record/Playphone Jack For Use With Smartphones. You Can Play Music And Videos, And Snap Pictures And Videos With The Monocular Telescope And Your Smartphone.

Gosky 1.25" Telescope Phone Adapter
This package includes the Gosky 1.25" telescope smartphone adapter with 1.5x barlow lens, a tethered phone holder for most phones, a tabletop tripod with mount and a storage bag.
While the idea is great, our test unit did not work very well. We didn't receive a response after contacting the manufacturer, and we were never able to get it working. While Gosky claims that its adapter has "autofocus" and "autoalignment" features, we were unable to get it to work, so we suspect that the product may have more problems than are apparent in the description. However, if you're looking for a simple direct camera adapter for 1.25-inch eyepieces, this product may be right for you.

Sihea Starscope Telescope Monocular
Best monocular telescope for bird watching, hiking, hunting, wildlife, camping, and outdoor sports. Small size, lightweight, easy to carry, ideal for carrying in your backpack or purse.
The starscope monocular telescope is a compact, high-quality telescope that you can use to view everything from the moon to star trails to faraway galaxies. It has all the basic features you'd expect in a quality telescope, including a 12x magnification and 50mm objective lens, and it's waterproof, fogproof, and weatherproof. The lens cover has an integrated mirror design, and it's possible to watch your reflection while you use the telescope, which is a nice touch. The starscope is also a very compact design, which makes it easy to transport, and it comes with a carrying bag, so it's easy to carry along with you. The starscope is great if you want something that's compact and portable, and you're not interested in spending a lot of money.

A Apexel Apexel High Power 36x HD Lens Telephoto with Tripod for iPhone XR
The Apexel phone lens is the least expensive telephoto lens we tested, but it provides stronger zoom performance and the most telephoto zoom range, with the widest viewing angle.
The Apexel 36x HD Telephoto Lens for Smartphones delivers multiple layers of clarity in distant shots and enhanced color in close-ups. The adjustable zoom goes from 24 to 72x, and the lens is detachable, so you can use it as a normal cell phone lens. This lens is sturdy and well-built, and the adjustable focus ring makes it easy to get clear, crisp shots. The downsides are that the lens is heavy (it weighs 1.78 ounces), and it's bulky, so it's best used for close-ups rather than long distance shots or mobile photography. But if you're looking for something more versatile, you can't go wrong with this lens.