Frequently Asked Questions
Are Flexon 623 eyeglasses prescription-ready?
Are Flexon 623 eyeglasses prescription-ready?
What is Flexon memory metal and why is it beneficial?
What is Flexon memory metal and how durable is it?
What size should I choose: 46mm or 48mm?
What face shapes work best with Flexon 623 rectangular frames?
Do the Flexon 623 frames have adjustable nose pads?
What sizes are available for the Flexon 623 eyeglasses?
Do the Flexon 623 frames have adjustable nose pads?
Are Flexon 623 eyeglasses suitable for everyday wear?
What colors are available for the Flexon 623 eyeglasses?
What face shapes work best with the Flexon 623 round frames?
Compare With Similar Frames
How the Flexon 623 Eyeglasses stacks up against the closest alternatives we carry.
- Same price point at $102.15
- Same Flexon memory metal technology
- Similar classic styling and build quality
- Lower price starting at $96.62
- Same durable Flexon memory metal construction
- Full-rim metal frame with similar quality
Read the full comparison
Flexon 623 vs. Similar Flexon Eyeglasses: Which Frame Is Right for You?
The Flexon 623 Eyeglasses sit in the heart of Flexon's classic collection, but how do they compare to similar models? If you're deciding between Flexon frames, understanding the key differences can help you choose the perfect pair.
Flexon 623 vs. Flexon 603
Both the Flexon 623 and Flexon 603 are priced identically at $102.15 and feature the same memory metal technology that makes Flexon frames virtually indestructible. The primary difference lies in frame shape and styling details. The 623's rectangular shape is specifically optimized for round and oval faces, creating flattering angular contrast. If you're choosing between these models, consider which frame shape best complements your facial structure and personal style—both offer exceptional durability and comfort with adjustable nose pads.
Flexon 623 vs. Flexon 606
The Flexon 606 offers a more budget-friendly entry point, starting at $96.62 compared to the 623's $102.15. While both frames utilize Flexon's signature memory metal construction and full-rim metal design, the 606 may feature a different frame shape that could suit different face types. If you love the 623's rectangular styling specifically for round or oval faces, the slight premium is worthwhile. However, if you're flexible on frame shape and want to save a few dollars, the 606 delivers the same legendary Flexon durability.
Flexon 623 vs. Flexon 609
The Flexon 609 is the most economical option, priced between $92.35 and $96.62—saving you approximately $6-$10 compared to the 623. Both frames share Flexon's lightweight metal construction and memory metal technology, but the 609 may have a different aesthetic that doesn't emphasize the rectangular shape as strongly. For shoppers prioritizing the sharp rectangular profile that flatters round and oval faces, the 623 is worth the modest premium. However, if budget is your primary concern and you're open to alternative frame shapes, the 609 delivers outstanding value.
Why Choose the Flexon 623?
The Flexon 623 strikes an ideal balance between classic rectangular styling, face-flattering design, and Flexon's renowned durability. With five sophisticated color options, two size choices, and adjustable silicone nose pads, it offers exceptional versatility at a mid-range price point. Choose the 623 if you want a timeless rectangular frame specifically designed to complement round or oval faces, backed by memory metal technology that ensures your investment lasts for years.
At a Glance
Flexon 603 Eyeglasses
Pros:
- Same price point at $102.15
- Same Flexon memory metal technology
- Similar classic styling and build quality
Cons:
- May have different frame shape that doesn't suit all face types
- Different color options may not match preferences
- Slightly different measurements may affect fit
Flexon 606 Eyeglasses
Pros:
- Lower price starting at $96.62
- Same durable Flexon memory metal construction
- Full-rim metal frame with similar quality
Cons:
- Different frame shape may not suit round/oval faces as well
- Potentially different color selection
- May have different sizing options
Flexon 609 Eyeglasses
Pros:
- Most affordable at $92.35-$96.62
- Same Flexon memory metal durability
- Lightweight metal construction
Cons:
- Different frame design may not complement round/oval faces as effectively
- Potentially fewer color options
- Different aesthetic may not suit all style preferences



