Which is better for road cycling?

The 4638 with Prizm Road. Its rose base lifts contrast on asphalt, lane lines and gravel, which is what the lens was designed for.

Which is better in bright sun?

The 5738 with Prizm Sapphire. It is the darker, more neutral lens and handles open sky, water and snow glare better.

Is the 5738 worth the extra money?

Only if you ride in strong sun or want vented lenses. At $100 versus $45 at eBay as of November 7, 2026, the 4638 is the better value for most riders.

Do they fit the same?

Yes. Both use the same O Matter half frame with a 38 mm lens, 138 mm bridge and 128 mm arms, so fit and coverage are identical.

Are either polarized?

No. Both are non-polarized with 100% UV protection.

The frame and lens materials are the same, so lifespan is similar. The matte black frame on the 4638 hides scratches better than polished white.

Oakley Radar EV Path vs Oakley Radar EV Path

Both are the same Radar EV Path frame, so the real choice is the lens. Buy the 5738 with Prizm Sapphire for bright, open conditions and a neutral color view. Buy the 4638 with Prizm Road for road and trail riding where you want contrast on asphalt and dirt. The 4638 is far cheaper right now: $45 at eBay as of November 7, 2026, versus $100 at eBay for the 5738 as of the same date.

Today the Oakley Radar EV Path costs $59.99 less at its best price.

Ask our shopping agent

It checks today's price at every store, compares the alternatives and answers in about a minute.