Your cart is currently empty!
Size guide
Find your perfect fit
Choosing the right size ensures your smart glasses feel just as good as they look.
Below you’ll find all the measurements you need to pick the right pair.
Frame sizes by model
Oakley Meta HSTN (Standard)
- Hinge to hinge: 133 mm
- Lens height: 43 mm
- Lens width: 49 mm
- Bridge width: 23 mm
- Temple length: 145 mm
Ray-Ban Meta Wayfarer (Standard)
- Hinge to hinge: 131 mm
- Lens height: 41 mm
- Lens width: 50 mm
- Bridge width: 22 mm
- Temple length: 150 mm
Ray-Ban Meta Wayfarer (Large)
- Hinge to hinge: 137 mm
- Lens height: 44 mm
- Lens width: 53 mm
- Bridge width: 22 mm
- Temple length: 155 mm
Ray-Ban Meta Headliner (Low Bridge Fit)
- Hinge to hinge: 134 mm
- Lens height: 44 mm
- Lens width: 51 mm
- Bridge width: 23 mm
- Temple length: 150 mm
Ray-Ban Meta Headliner (High Bridge Fit)
- Hinge to hinge: 132 mm
- Lens height: 43 mm
- Lens width: 50 mm
- Bridge width: 23 mm
- Temple length: 150 mm
Ray-Ban Meta Skyler (Standard)
- Hinge to hinge: 133 mm
- Lens height: 42 mm
- Lens width: 52 mm
- Bridge width: 20 mm
- Temple length: 150 mm
What does frame size mean?
The most important dimension is the hinge-to-hinge width – the distance between the inner hinges of the glasses.
This determines how the frame will fit your face.

Measured from hinge to hinge – the key dimension for a proper fit.
How to find your size
If you already own glasses that fit well, use a ruler to measure the hinge-to-hinge width and compare it with the sizes above.
A difference of ±4 mm is generally still comfortable.
Other numbers explained
Inside the arm (temple) of most glasses, you’ll find a series of numbers printed or engraved.
These typically show:
- Lens width (in mm)
- Bridge width (distance between lenses)
- Temple length (arm length)

Model code, lens width, bridge width, and temple length — printed on the inside of the frame.
Example
A marking like 52▢18 140
means:
- Lens width = 52 mm
- Bridge width = 18 mm
- Temple length = 140 mm