Apple Watch Solo Loop (45mm, Size 12, Abyss Blue, Fall 2021)

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.”

The color of this band is Abyss Blue, a shade of dark blue. It was available in 41mm and 45mm widths, and was sold in specific wrist sizes. The 41mm Solo Loop was sold in wrist sizes 1–9, and the 45mm 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, Bandbreit app

Apple Watch Sport Loop (44mm, Abyss, 2021)

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 sizes to fit 130–200mm wrists (40mm) and 145–220mm wrists (44mm).

This Abyss band used a base color of blue with edges in light blue and dark gray. The connector plastics were dark blue and the closure plastic was light 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.”

Source: Apple