Joybuy Insights

Choosing sunglasses without a costly mistake: compare protection, comfort and smart features

Sunglasses need to do more than look good. In the Netherlands, sunshine, cloud and bright light can change quickly. If you choose based only on lens colour or frame style, you could end up with a pair that feels uncomfortable, gets damaged easily or causes distracting reflections in the car.

The most common pitfalls when choosing sunglasses include:

  • UV claims without clear product specifications: check that UV400, the filter category and a CE mark are stated in the product information.
  • An unsuitable fit: frames that are too wide can slip when you’re cycling or walking, while frames that are too narrow may press against your temples.
  • Impractical designs: a frame may look stylish but be difficult to store or unsuitable for driving.
  • Features that don’t suit how you’ll use them: AI glasses aren’t ordinary sunglasses, and a make-up mirror with LED lighting is no substitute for eye protection.

What should you look for in sunglasses?

1. UV400 and filter category

UV400 refers to protection against ultraviolet light up to around 400 nanometres. According to Beneunder’s product description, the FD421 models have a UV400 coating and, according to the manufacturer, block at least 99.9% of UV radiation. For the FD315 models, the manufacturer states at least 99.8%.

These are claims made in the manufacturer’s product information, not independent measurements by Joybuy. So also check:

  • the stated filter category, such as category 2 or 3;
  • the CE mark;
  • information about the European standard for sunglasses;
  • any warning about whether the model is suitable for driving.

A dark lens doesn’t automatically offer better UV protection. For everyday wear and sunny holidays, clear UV information and a suitable filter category matter more than lens colour alone.

2. Reflections, contrast and driving

Anti-reflective sunglasses can help reduce distracting glare. According to the product description, Beneunder claims that the FD421’s OAR coating reduces glare by at least 99.6%. A reduction in reflections of at least 99.8% is stated for the FD315. These percentages come from the manufacturer’s information.

When choosing sunglasses for driving, it’s worth looking for:

  • sufficient contrast in changing light;
  • a frame that doesn’t unnecessarily restrict your peripheral vision;
  • a filter category that isn’t too dark;
  • information about possible reflections on the dashboard or digital displays.

Polarised lenses can reduce glare from wet roads, but may affect how clearly you can see some screens. Check this beforehand if you often wear the sunglasses in the car.

3. Weight, size and portability

Lightweight sunglasses are more comfortable when you wear them for several hours. According to the product information, the Beneunder FD421 weighs 26 grams and folds down to around 35 millimetres thick. This makes the TR90 sunglasses a particularly handy travel option.

Also check the size. For example, the Ray-Ban Meta Wayfarer Gen1 is listed as size 50-22: a lens width of 50 millimetres and a bridge width of 22 millimetres. The Skyler models are listed as size 52-20. Compare these figures with a pair you already own or use the stated face-width measuring method.

Foldable sunglasses are handy to carry in a bag, but handle the hinges with care. Fold them only at the designated points and keep them in a case to help prevent scratches.

Which style suits the way you’ll use them?

Cat-eye sunglasses have an upswept shape at the outer edges and are a good choice if you’re looking for a distinctive frame. Boston sunglasses usually have a softer, rounder shape and can be a versatile option for everyday wear.

Don’t just consider the shape: think about how the frame sits in relation to your face, too. The top edge shouldn’t press against your eyebrows, and the bottom edge shouldn’t rest on your cheeks all the time.

If technology matters more to you than classic sun protection, models such as the Ray-Ban Meta smart glasses are worth considering. They combine a frame with a camera, open-ear audio and voice features. So they’re more like AI glasses for everyday use than a simple pair of sunglasses. Before buying, check the app requirements, compatibility with iOS or Android, and battery life.

Recommended choices for different users

Suitable for: Budget-conscious beginners
Beneunder FD315-CN101 Cat-Eye Foldable Sunglasses

Beneunder FD315-CN101 Cat-Eye Foldable Sunglasses

Why it suits this profile: A striking cat-eye shape with a foldable TR90 frame, designed for everyday wear and easy storage.

How this product helps avoid the pitfalls

The product description lists UV400, an anti-reflective OAR coating, and soft nose and temple pads. Check the filter category yourself before buying.

Key benefit & highlights

TR90 frame, foldable design, UV400 according to the manufacturer, and a frame width of around 5.8 inches.

Suitable for: Buyers looking for premium quality
Ray-Ban Meta Wayfarer Gen1 AI Smart Glasses

Ray-Ban Meta Wayfarer Gen1 AI Smart Glasses

Why it suits this profile: For users who want to pair a recognisable frame with hands-free controls, photography and open-ear audio.

How this product helps avoid the pitfalls

The specifications list size 50-22, Bluetooth 5.2, Wi-Fi 6 and compatibility with iOS 14.4 or later, or Android 10 or later. Check that your phone is compatible.

Key benefit & highlights

12 MP camera, five microphones, open-ear speakers and up to four hours of battery life according to the product information.

Suitable for: Specific needs & intensive users
Beneunder Boston-Style Folding Sunglasses FD01h

Beneunder Boston-Style Folding Sunglasses FD01h

Why it suits this profile: Boston-style sunglasses for anyone who values a classic silhouette, adjustability and compact storage.

How this product helps avoid the pitfalls

The product information lists adjustable arms, double nose pads, UV400 and several lens coatings. This makes it easy to check the specifications before buying.

Key benefit & highlights

TR90 frame, foldable design, and anti-reflective, scratch-resistant coating according to the manufacturer.

Suitable for: Beauty and skincare enthusiasts
Medisana CM 844 make-up mirror with LED lighting

Medisana CM 844 make-up mirror with LED lighting

Why it suits this profile: For anyone looking for a practical make-up mirror with LED lighting for their daily beauty routine, as well as a pair of sunglasses.

How this product helps avoid the pitfalls

Its features are clearly defined: LED lighting, dimming function, rotating mirror and 7x magnification. This is not a pair of sunglasses and offers no UV protection.

Key benefit & highlights

44 LEDs, three lighting modes, adjustable brightness, 7x magnification and a rechargeable battery according to the product description.

Looking for more options?

We’ve put together a complete, up-to-date list of products that meet these strict selection criteria and the applicable European safety requirements.

Frequently asked questions about sunglasses

How long do sunglasses last?

Their lifespan depends on how you use, store and care for them. Hinges and coatings can wear out more quickly if you keep your sunglasses loose in a bag. Use a hard case or the case supplied, clean them with a soft microfibre cloth, and fold foldable sunglasses carefully. Replace them if the frame is misshapen or the lenses have deep scratches.

Are UV400 sunglasses automatically suitable for driving?

Not necessarily. UV400 describes the range of the UV filter, but doesn’t tell you whether the sunglasses are suitable for driving. Check the filter category, any usage warnings, and whether you can clearly see dashboard and sat nav screens. Lenses that are too dark may not be suitable in tunnels, at dusk or in poor weather.

What does it cost to use Ray-Ban Meta smart glasses?

As well as the purchase price, you’ll need to consider whether you have a compatible smartphone, the required Meta AI app and the need to recharge the glasses regularly. According to the product information, battery life is up to four hours, and the charging case can provide several additional charges. Before buying, check the latest compatibility information and features for your phone.