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WEARVANT / SIZE & FIT
Find Your
Find Your
Best Fit.
Smart glasses should feel secure, balanced, and comfortable. Use a pair of glasses you already enjoy wearing to compare frame width, lens width, bridge width, and temple length before choosing your next Wearvant smart eyewear.
SMART EYEWEAR FIT
UNIT
Millimeters / mm
BEST REFERENCE
Your Current Glasses
THE FOUR KEY MEASUREMENTS
Know the Numbers
Know the Numbers
Behind the Fit.
Most eyewear dimensions are shown in millimeters. No single number determines fit by itself, but these four measurements provide a useful starting point.
Frame Width
The total width of the frame from the widest outer point on one side to the widest outer point on the other.
MAIN OVERALL FIT REFERENCELens Width
The horizontal width of one lens at its widest point. It helps describe how compact or wide the front appears.
USUALLY 46–54+ MMBridge Width
The shortest horizontal distance between the two lenses. It influences how the frame rests on your nose.
OFTEN 15–22 MMTemple Length
The length of each arm from the hinge toward and behind the ear. It affects stability and comfort.
OFTEN 135–145+ MM
FRAME SIZE FINDER
Start With a Pair
Start With a Pair
That Already Fits.
Measure the total width of glasses you already find comfortable. Enter that number below for a general Wearvant size starting point.
This tool is a general reference only. Always compare the actual dimensions shown on the individual product page.
ENTER CURRENT FRAME WIDTH
mm
YOUR STARTING POINT
Medium
A frame width around 135–140 mm is generally considered a medium starting range.
CLOSEST MATCH
Look for approximately 136–140 mm
HOW TO MEASURE
Use Your Current Glasses
Use Your Current Glasses
as a Reference.
A simple millimeter ruler and a pair of glasses that already fits you well are usually enough. Measure carefully without bending the frame.
STEP 01
↔
Measure Frame Width
Place the glasses front-facing on a flat surface. Measure straight across from the widest outer edge on one side to the widest outer edge on the other.
Record the measurement in millimeters.
STEP 02
◯
Measure One Lens
Measure horizontally across one lens at its widest point. Do not include the bridge in this measurement.
This is commonly the first number printed on eyewear.
STEP 03
⇄
Measure the Bridge
Measure the shortest horizontal distance between the two lenses. Bridge width influences nose fit and frame position.
A few millimeters can noticeably change how a frame sits.
STEP 04
⌁
Measure Temple Length
Measure from the hinge along the arm toward its end. Follow the temple rather than measuring directly through the curved section.
Compare with glasses that rest comfortably behind your ears.
GENERAL SIZE REFERENCE
Small, Medium
Small, Medium
or Large?
Overall frame width is usually the easiest place to start. These ranges are approximate and are not universal eyewear-industry standards.
| SIZE | FRAME WIDTH | LENS WIDTH | BRIDGE | TEMPLE |
|---|---|---|---|---|
| Small Narrower Fit | Below 135 mm | 46–50 mm | 15–18 mm | 135–140 mm |
| Medium General Mid Range | 135–140 mm | 50–54 mm | 17–20 mm | 140–145 mm |
| Large Wider Fit | Above 140 mm | 54 mm+ | 18–22 mm | 145 mm+ |
Product dimensions take priority over this table.
Frame shape, hinge position, temple construction, lens shape, nose bridge, and smart-electronics placement can make two frames with similar measurements feel different.
SMART GLASSES FIT
Fit Matters Even More
Fit Matters Even More
With Connected Eyewear.
Some smart frames contain speakers, microphones, batteries, controls, or other electronics in the temples. That can change weight distribution compared with conventional eyewear.
Balanced Temples
The arms should feel stable without creating excessive pressure at your temples or behind your ears.
Stable Nose Position
A stable bridge helps keep the front of the frame properly positioned without constant sliding.
No Side Pressure
Wider smart temples should not press uncomfortably against the sides of your head.
Secure During Movement
The frame should remain reasonably stable during normal walking and head movement.
Comfortable Behind the Ear
Temple length should allow the frame arms to sit naturally without pulling or lifting the frame front.
Long-Wear Comfort
A fit that feels acceptable for two minutes may feel different after extended wear, so balanced pressure matters.
CHECK THE FIT
What Should a Good
What Should a Good
Fit Feel Like?
Secure & Balanced
- Frame stays reasonably stable when you move.
- No strong pressure at the temples.
- Bridge rests naturally on the nose.
- Temples sit comfortably behind the ears.
- Frame looks visually centered.
Excessive Pressure
- Strong squeezing at the sides of the head.
- Pressure marks develop quickly.
- Temples bow outward noticeably.
- Frame feels uncomfortable behind the ears.
- Wearing comfort decreases quickly over time.
Sliding & Movement
- Glasses slide down repeatedly.
- Frame shifts significantly when turning your head.
- Bridge does not sit securely.
- Temples do not provide enough stability.
- Frame appears noticeably wider than your face.
UNDERSTANDING EACH NUMBER
Fit Is More Than
Fit Is More Than
Frame Width.
If two frames have a similar overall width, the bridge, lenses, temples, and frame shape may still make them feel very different.
Frame Width
The best quick indicator of whether a frame is likely to feel narrow, average, or wide. Start by comparing this measurement with your current glasses.
Bridge Width
A bridge that is too narrow may create concentrated pressure. A bridge that is too wide may allow the glasses to sit lower or slide more easily.
Lens Width
Lens width influences the visual scale of the frame, but it should not be used alone because bridge and overall frame construction also affect fit.
Temple Length
Temples that are too short may pull against the ears. Temples that are too long may not hold the frame as securely as expected.
Frame Shape
Rectangular, rounded, oversized, curved, and sport-style frames can fit differently even when their listed widths are similar.
Smart Temple Design
Some smart-eyewear temples are thicker because they contain electronics. Consider both listed measurements and the actual temple construction shown on the product page.
NUMBERS ON YOUR CURRENT GLASSES
What Does
What Does
52 □ 18 145 Mean?
Many conventional eyeglass frames have size information printed on the inside of a temple arm.
52
□
18
145
52
Lens Width
mm
18
Bridge Width
mm
145
Temple Length
mm
This common marking normally does not include the overall frame width, so you may still need to measure total width manually.
BEFORE YOU ORDER
Four Checks Before
Four Checks Before
Choosing a Frame.
Compare Overall Width
Start with your current comfortable glasses and look for a similar overall frame width.
Compare Bridge
If your current bridge fits well, use its measurement as an additional reference.
Check Temple Length
Smart-glasses temples should reach comfortably behind your ears without excessive pressure.
Read the Product Specifications
Always use the actual measurements provided for the individual Wearvant model before ordering.
SIZE GUIDE FAQ
Common Fit
Common Fit
Questions.
If you are comparing two models, the individual product specifications should always be your final reference.
Overall frame width is usually the easiest starting point because it quickly indicates whether the front of the glasses is likely to feel narrower or wider than your current pair.
Check the specifications on the individual product page. Dimensions vary by model, so never assume that one Wearvant frame has the same measurements as another.
No. Smart glasses should feel secure without excessive pressure. Because some smart frames contain electronics in the temples, balanced fit may be especially important for extended wear.
Yes. Overall frame width, bridge width, hinge position, temple design, lens shape, curvature, and frame construction can all change the fit.
A 141 mm frame sits just above the general medium range in this guide, so a wider medium or large frame may be worth comparing. Use the exact product dimensions rather than relying only on the size label.
No. They are convenient general categories, not universal industry standards. Different brands and frame designs can use different size conventions.
Face shape can influence style preference, but measurements are more useful for physical fit. A comfortable existing pair of glasses provides a stronger reference than appearance alone.
Compare the exact frame width, bridge, and temple measurements of both products with your current glasses. The closer overall match is generally a better starting point.
READY TO COMPARE?
Find a Frame
Find a Frame
That Fits Your Day.
Compare the dimensions of Wearvant smart glasses with eyewear you already wear comfortably before ordering.