Apple Watch Solo Loop (44 mm, Size 12, Kumquat, 2020)

The Solo Loop Apple Watch band was released in 2020 along with the Apple Watch Series 6. The packaging describes this product as a “Silicone Fitted Band.” According to Apple’s website:

“Made from liquid silicone rubber, the Solo Loop features a unique, stretchable design with no clasps, buckles, or overlapping parts that’s ultracomfortable to wear and easy to slip on and off your wrist. Each band is specially treated with UV to give the band a silky, smooth finish. It’s also swim proof and sweat proof so it can go just about anywhere you want to wear it.”

This band color is called “Kumquat,” a shade of orange. It was available in 40 mm and 44 mm widths, and was among the first Apple Watch bands to be sold in specific wrist sizes. The 40 mm Solo Loop was sold in wrist sizes 1–9 and the 44 mm Solo Loop was sold in wrist sizes 4–12.

According to Apple’s website, “This band comes in custom sizes because it’s designed for an ultracomfortable fit. An accurate measurement will help you get the size that’s right for you.” The website allowed buyers to download a PDF and cut out a “tool” that wrapped around the wrist to designate the band size needed.

This snug-fitting design allowed Apple Watch sensors to retain constant and consistent skin contact, allowing accurate blood oxygen and heart rate measurements to be maintained.

Source: Apple

Apple Watch Sport Loop (44mm, Kumquat, 2020)

The Apple Watch Sport Loop band was woven from nylon thread to create a hook-and-loop closure. These bands were available for the 38/40mm and 42/44mm Apple Watch models, and were offered in a size to fit 130–190mm wrists.

Beginning around 2018, Sport Loop designs were comprised of a base color and one or more accent colors. This Kumquat band uses an orange base color with edges accented in dark green and dark blue. In addition, the plastic connectors are orange while the closure plastic is dark blue.

Apple described the Apple Watch Sport Loop band:

“Soft, breathable, and lightweight, the Sport Loop features a hook-and-loop fastener for quick and easy adjustment. The double-layer nylon weave has dense loops on the skin side that provide soft cushioning while allowing moisture to escape. On the reverse side, the attachment loops are securely anchored for superior durability.”

Beginning in 2020 Apple began including a Band Compatibility statement on its website:

“You can match most bands with any Apple Watch Series 3 or newer case of the same size. (For Apple Watch Series 3, the 40mm band works with the 38mm case; the 44mm band works with the 42mm case.) The Solo Loop and Braided Solo Loop bands are only compatible with Apple Watch SE and Apple Watch Series 4 or newer. The 40mm case works with band sizes 1–9; the 44mm case works with band sizes 4–12.”

Source: Apple