Product Details
Color Details
Size DetailsFrequently Asked Questions
Are the Easytwist ET840 frames compatible with prescription lenses?
What makes Easytwist memory metal different from regular titanium frames?
Are these frames suitable for people with nickel allergies?
How durable are Easytwist ET840 frames for active lifestyles?
What are the measurements of the Easytwist ET840?
Can the ET840 frames be adjusted if they don't fit perfectly?
Compare With Similar Frames
How the Easytwist ET840 Eyeglasses stacks up against the closest alternatives we carry.
- Lower price point ($86-$96 vs $129)
- Same Trilaston memory metal technology
- Similar durability and flexibility features
- Established brand with wide recognition
- Proven titanium memory metal technology
- Available at many optical retailers
- Premium Flexon technology
- Automatic flex adjustment
- Strong brand reputation
Read the full comparison
Easytwist ET840 vs. Flexible Frame Alternatives
If you're considering the ET840, you're likely weighing it against other flexible or memory metal frames. Here's how it stacks up against comparable options in our catalog.
ET840 vs. Easytwist ET960
Both frames use the same Trilaston memory metal technology and TurboFlex hinges, so durability and flexibility are identical. The main difference is price: the ET960 runs $86-$96 compared to the ET840's $129. If you're looking to save money while getting the same core technology, the ET960 is worth considering. However, the ET840 may offer more refined styling or color options depending on your preference. Either way, you're getting the same nickel-free, hypoallergenic construction and long-term durability Easytwist is known for.
ET840 vs. Flexon E1111 and AUTOFLEX 44
Flexon is the household name in memory metal eyewear, using nickel-titanium alloy that's been the industry standard for decades. The E1111 ($148) and AUTOFLEX 44 ($141-$156) both offer excellent flexibility and shape recovery. However, there's a key material difference: Flexon frames contain nickel, which can cause allergic reactions in sensitive wearers. The ET840's Trilaston alloy is nickel-free and hypoallergenic.
Customer reviews and industry sources also suggest that nickel-titanium frames can gradually lose flexibility over extended use, while Easytwist's Trilaston maintains shape recovery longer. If you have nickel sensitivity, need truly hypoallergenic frames, or want the most durable long-term option, the ET840 is the better choice. If brand recognition matters most and you don't have nickel allergies, Flexon remains a solid option—just expect to pay $12-$27 more.
Why Choose the ET840?
The ET840 hits a sweet spot: more affordable than premium Flexon models, hypoallergenic unlike nickel-titanium competitors, and backed by customer reviews reporting 5-10+ years of daily wear. For active adults who are hard on glasses, or anyone with metal sensitivities, it's the most practical choice in this comparison.
At a Glance
Easytwist ET960 Eyeglasses
Pros:
- Lower price point ($86-$96 vs $129)
- Same Trilaston memory metal technology
- Similar durability and flexibility features
Cons:
- May have different frame shape/style
- Potentially fewer color options
- Less established model compared to ET840
Flexon E1111 Eyeglasses
Pros:
- Established brand with wide recognition
- Proven titanium memory metal technology
- Available at many optical retailers
Cons:
- Higher price ($148 vs $129)
- Nickel-titanium may lose flexibility over time
- Not hypoallergenic (contains nickel)
Flexon AUTOFLEX 44 Eyeglasses
Pros:
- Premium Flexon technology
- Automatic flex adjustment
- Strong brand reputation
Cons:
- Higher price ($141-$156)
- Contains nickel (not hypoallergenic)
- May require more frequent professional adjustment