Product Details
Color Details
Size DetailsFrequently Asked Questions
Are the Nine West NW644S sunglasses prescription-ready?
What face shapes do Nine West NW644S rectangle sunglasses suit best?
What are the benefits of acetate frames on the NW644S?
What size are the Nine West NW644S sunglasses?
Do Nine West NW644S sunglasses provide UV protection?
What colors are available for the Nine West NW644S?
Product Comparison
How the Nine West NW644S Sunglasses compares with similar frames.
Read the full comparison
Nine West NW644S vs NW634S: Which Rectangle Sunglasses Are Right for You?
If you're deciding between the Nine West NW644S and NW634S, you're comparing two excellent rectangle acetate sunglasses from the same collection. Both offer prescription-ready frames, UV protection, and Nine West's signature feminine style—but there are key differences.
The NW644S features a square-rectangle hybrid shape with softly rounded edges and comes in four distinctive colors including unique pearlized tortoise patterns. The frame has a slightly bolder presence, making it ideal if you want sunglasses that make more of a statement. At $91.69, it offers excellent value for a fashion-forward acetate frame with multiple color options.
The NW634S has a slimmer, more refined rectangle profile that reads as subtle and classic. It's perfect for women who prefer understated elegance over bold style. Priced between $101.54–$128.70, it's positioned as a slightly more premium option, though with fewer color choices.
Choose the NW644S if: You want more color variety, prefer a slightly bolder frame, or are looking for the best value. The pearlized tortoise options are particularly eye-catching and versatile.
Choose the NW634S if: You prefer a slimmer, more understated rectangle shape and want a frame that's ultra-classic and won't compete with your outfits.
How the NW644S Compares to the NW641S
The Nine West NW641S is another option in our collection at $95.38. While we recommend comparing these models in person or via photos, the NW644S generally offers more color versatility and the distinctive square-rectangle shape that's trending right now. Both are prescription-ready and built with the same quality acetate construction Nine West is known for.
At a Glance
Nine West NW634S Sunglasses
Pros:
- Slimmer, more refined rectangle profile for a subtler look
- Slightly lower price point ($101.54–$128.70)
- Also prescription-ready with full-rim acetate construction
- Classic rectangle shape that never goes out of style
Cons:
- Less color variety compared to the NW644S
- Slimmer frame may provide less sun coverage
- May not suit those who prefer a bolder, more substantial frame
Nine West NW641S Sunglasses
Pros:
- Slightly lower price at $95.38
- Same Nine West quality and design DNA
- Full-rim construction for durability
- Prescription-ready like the NW644S
Cons:
- Different frame shape may not suit the same face types
- Fewer color options available
- May have different sizing that doesn't fit all customers