Product Details
Color Details
Size DetailsFrequently Asked Questions
Are Flexon EDISON 600 eyeglasses compatible with progressive lenses?
What is Flexon memory metal and how durable is it?
What size should I choose for the Flexon EDISON 600?
Do these eyeglasses come with adjustable nose pads?
Are round eyeglasses like the EDISON 600 suitable for my face shape?
What warranty coverage comes with Flexon EDISON 600 eyeglasses?
Compare With Similar Frames
How the Flexon EDISON 600 Eyeglasses stacks up against the closest alternatives we carry.
- Rectangular shape suits round or oval faces better
- Bowed temples accommodate wider heads more comfortably
- More contemporary, professional appearance
- Lower price point at $102.15 (saves $14.16)
- Same round shape and memory metal technology
- Classic timeless design with full-rim construction
Read the full comparison
Flexon EDISON 600 vs EINSTEIN 600 vs 623: Which Round or Rectangular Frame Is Right for You?
Choosing between Flexon's memory metal eyeglasses often comes down to frame shape and fit. All three models feature the same revolutionary titanium-nickel alloy that bends and returns to shape, but they serve different style preferences and face shapes.
EDISON 600 vs EINSTEIN 600: Round vs Rectangular
The Flexon EDISON 600 features a classic round frame that softens angular features and delivers a timeless, intellectual aesthetic. It's ideal for square, rectangular, or heart-shaped faces and comes in 47mm and 49mm lens widths. The Flexon EINSTEIN 600, by contrast, offers a rectangular shape with bowed temples that accommodate wider heads more comfortably. Its 52mm and 54mm lens options suit round or oval faces better and project a more contemporary, professional appearance.
Choose the EDISON 600 if: You have an angular face shape, prefer vintage-inspired round frames, or want a more versatile everyday style. Choose the EINSTEIN 600 if: You have a round or oval face, need wider temple accommodation, or prefer a modern rectangular look for professional settings.
EDISON 600 vs 623: Premium vs Value Round Frames
Both the EDISON 600 and the Flexon 623 offer round metal frames with memory metal technology, but at different price points. The 623 costs $102.15 (saving you $14.16) and features a smaller 46mm lens width that's perfect for petite faces. However, the EDISON 600's larger lens heights (42mm vs potentially smaller on the 623) make it better suited for progressive or bifocal lenses, and it offers more size flexibility with both 47mm and 49mm options.
Choose the EDISON 600 if: You need progressive lenses, want more size options, or prefer the refined details of the 600 series. Choose the 623 if: You have a smaller face, want to save $14, and need single-vision lenses only.
All three models deliver Flexon's signature durability and lightweight comfort, so your decision ultimately comes down to face shape, size requirements, and whether you prefer round or rectangular styling.
At a Glance
Flexon EINSTEIN 600 Eyeglasses
Pros:
- Rectangular shape suits round or oval faces better
- Bowed temples accommodate wider heads more comfortably
- More contemporary, professional appearance
- Slightly wider lens options (52mm and 54mm)
Cons:
- Less versatile for angular face shapes
- Rectangular frames can emphasize a long face
- Not as timeless or retro-inspired as round frames
Flexon 623 Eyeglasses
Pros:
- Lower price point at $102.15 (saves $14.16)
- Same round shape and memory metal technology
- Classic timeless design with full-rim construction
- Smaller 46mm lens width ideal for petite faces
Cons:
- Only available in 46mm size (more limited fit range)
- May lack some of the refined design details of the 600 series
- Smaller lens height may be less ideal for progressive lenses