Which is better for winter?

The Cable Earmuff Beanie. Its extended profile covers the ears and the knit traps heat. The Xiaomi cap is light and breathable, so it suits warm weather.

A knit beanie can stretch and pill over seasons, while a woven baseball cap holds its shape but can fade. Neither has a clear durability edge from the feedback shown.

Is the beanie worth stepping up to over the cap?

Only if you need warmth. For sun and casual wear the Xiaomi cap does the job; for cold ears the beanie is the right pick.

Does the beanie fit everyone?

It is listed as universal size for 54-62cm head circumference, which covers most adults. The Xiaomi cap relies on its adjustable back.

Can I wear the Xiaomi cap in cold weather?

It gives no ear coverage and little insulation. It works as a light layer but not as a winter hat.

Which is better for running or the gym?

The Xiaomi cap, because it is breathable and light. The beanie is built for warmth, not sweat.

Cable Earmuff Beanie vs Xiaomi Baseball Cap

These are different hats for different jobs. The Cable Earmuff Beanie is a warm winter knit with an extended profile that covers the ears, and its 4.9 rating from 325 shoppers backs that up. The Xiaomi Mi Baseball Cap is a light, breathable summer cap with no ear coverage and no thermal claim. Buy the beanie for cold weather and the baseball cap for sun and casual wear.

Choose the Cable Earmuff Beanie if you need warmth, ear coverage and a textured knit for winter.
Choose the Xiaomi Mi Baseball Cap if you want a light, breathable cap for warm days and casual outfits.

Prices

Cable Earmuff Beanie: $15.66 at Walmart (last seen Nov 10)
Xiaomi Baseball Cap: $1.99 at CouponsFromChina.com (last seen Nov 10)
Difference: the Xiaomi Baseball Cap is $13.67 cheaper than the Cable Earmuff Beanie at the latest prices (Nov 10)