Apple Watch Sizing Guide (2025)

Beginning in 2020 Apple began offering Apple Watch band designs that were specifically sized to wrists. These bands included the Apple Watch Solo Loop and the Apple Watch Braided Solo Loop. These Apple Watch bands were available in sizes 1–12.

In order to allow individuals to determine their Apple Watch Band size, Apple provided three methods:

  • Printable Tool (online PDF)
  • Everyday items (using a “tailor’s measuring tape” or a narrow strip of paper)
  • Sizing Tool (in-store paper tool)

The first 2 options were available online. After measuring your wrist, Apple provided an online converter that allowed users to enter their wrist size to a maximum of 10 15/16 inch (although the Solo Loop only fit wrists to a maximum of 8 2/16 inches).

This third Sizing Tool option was available to Apple Store Customers. The tool includes the directions on the outer package, instructing individuals using diagrams to open the package, peel back an adhesive dot, wrap the tool around the wrist, and determine the band size based upon the location of arrows printed on the Sizing Tool.

This example is unopened and was obtained at the Deer Park (IL) Apple Store in December 2025.

Source: Apple (Solo Loop, Sizing Guide)

Apple Vision Pro Solo Knit Band (M, 2024)

The Apple Vision Pro Apple Vision Pro Solo Knit Band is one of the required accessories that ships with the Apple Vision Pro and is custom-sized to the user. When purchasing an Apple Vision Pro, an app scans a user’s face and helps the user select an appropriately sized Solo Knit Band.

Solo Knit Bands were available in 3 sizes: S, M and L. This example is a size M. The size of the band is woven into the inside left of the band, near the orange release tab.

This Solo Knit Band is a replacement sold in retail packaging. The Product Information indicates:

“Designed for Apple Vision Pro, the Solo Knit Band is 3D knitted as a single piece to create a unique rib structure that provides cushioning, breathability, and stretch. It has an easy-to-reach Fit Dial to let you adjust Apple Vision Pro to your head and enables microadjustments during use. The Solo Knit Band attaches to the Audio Straps with a simple and secure mechanism, and the release tabs allow you to detach it when needed.”

Among the two original options, the Solo Knit Band is my favorite in terms of comfort, and it has the least negative effect on my hair. In 2025, an new variant of this product was introduced, called the Apple Vision Pro Dual Knit Band. The second knit band extends over the head and has a separate Fit Dial adjustment.

Source: Apple (Solo Knit Band, Dual Knit Band)

Alpine Loop (Light Blue, Black Titanium, Large, Fall 2025)

The Apple Watch Alpine Loop band design was released along with the Apple Watch Ultra on September 7, 2022. The Apple Watch Ultra “brings a new bold design and a wide range of features built for endurance, exploration, and adventure.”

In the original press release, Apple described the Alpine Loop as one of its “New Bands Designed for the Great Outdoors.” Apple adds:

“With explorers in mind, the Alpine Loop band features two integrated layers made from one continuous weaving process that eliminates the need for stitching. The top loops, interspersed with high-strength yarn, provide adjustability and a secure attachment for the titanium G-hook fastener.”

Apple’s product page described the Alpine Loop:

“The rugged Alpine Loop is made from two textile layers woven together into one continuous piece without stitching. High-strength yarns reinforce the top loops, and the corrosion-resistant titanium G-hook slides easily into the loops for secure fit.”

This Alpine Loop is described as light blue, but the color more closely resembles slate blue in my opinion. With the announcement of the black Apple Watch Ultra 2 in September 2024, Apple began offering Alpine Loop bands with black titanium connector hardware to match the black titanium finish of the Black Titanium Apple Watch Ultra 2. A press release explained:

“To complement the new black finish, the popular Trail Loop, Alpine Loop, and Ocean Band have all been updated to offer a black hardware option in addition to natural titanium. Both black and natural finishes of Apple Watch Ultra 2 are made from 95 percent recycled titanium, and are carbon neutral with any Titanium Milanese Loop, Trail Loop, or Alpine Loop.”

The connectors and the “G-hook” closure are made of the same color titanium as the silver Apple Watch Ultra. Although splitting hairs, a more apt name for the hook would be a “g-hook” since it matches the shape of a lowercase—not uppercase—“g.”

All Apple Watch Ultra models fit the single-size 49mm case. The Alpine Loop is made primarily of polyester.

Source: Apple (Product, Newsroom, black Titanium option), Bandbreite app

Trail Loop (Blue/Bright Blue, Black Titanium, L, 49 mm, 2025)

The Apple Watch Trail Loop was released along with the Apple Watch Ultra on September 7, 2022. Apple reported that the Apple Watch Ultra “brings a new bold design and a wide range of features built for endurance, exploration, and adventure.”

In the original press release, Apple described the Trail Loop as one of its “New Bands Designed for the Great Outdoors.” Apple added:

“Designed specifically for endurance athletes and runners, the Trail Loop band is the thinnest Apple Watch band to date. The lightweight woven textile is both soft and flexible, allowing it to cinch to the optimal fit, and the convenient tab is designed for quick and easy adjustment.”

Apple’s product page described the Trail Loop:

“The thin, lightweight Trail Loop is made from a nylon weave creating a soft band with increased elasticity for a comfortable fit. The band is infinitely adjustable with a convenient pull tab for quick adjustments on the go.”

This Trail Loop is Blue. The band is primarily dark blue with a dark blue pull-tab. A distinctive triple-stitch pattern in white thread separates the blue and bright bue edges. With the announcement of the black Apple Watch Ultra 2 in September 2024, Apple began offering Trail Loop bands with black titanium connector hardware to match the black titanium finish of the Black Titanium Apple Watch Ultra 2. A press release explained:

“To complement the new black finish, the popular Trail Loop, Alpine Loop, and Ocean Band have all been updated to offer a black hardware option in addition to natural titanium. Both black and natural finishes of Apple Watch Ultra 2 are made from 95 percent recycled titanium, and are carbon neutral with any Titanium Milanese Loop, Trail Loop, or Alpine Loop.”

All Apple Watch Ultra models fit the single-size 49mm case. The Trail Loop is made primarily of nylon.

Please note that this item was ordered on Amazon and arrived in a 4-pack. It was packaged in a brown cardboard shipping container (likely directory from the factory) with a white, unclosed box inside that held four identical Trail Loop bands.

Source: Apple (Product, Newsroom, Titanium black option), Bandbreite

Trail Loop (Green/Neon, Natural Titanium, L, 49 mm, 2025)

The Apple Watch Trail Loop was released along with the Apple Watch Ultra on September 7, 2022. Apple reported that the Apple Watch Ultra “brings a new bold design and a wide range of features built for endurance, exploration, and adventure.”

In the original press release, Apple described the Trail Loop as one of its “New Bands Designed for the Great Outdoors.” Apple added:

“Designed specifically for endurance athletes and runners, the Trail Loop band is the thinnest Apple Watch band to date. The lightweight woven textile is both soft and flexible, allowing it to cinch to the optimal fit, and the convenient tab is designed for quick and easy adjustment.”

Apple’s product page described the Trail Loop:

“The thin, lightweight Trail Loop is made from a nylon weave creating a soft band with increased elasticity for a comfortable fit. The band is infinitely adjustable with a convenient pull tab for quick adjustments on the go.”

This Trail Loop is Green/Neon Green. The band is primarily dark green with a dark green pull-tab. The outer edges of the band are neon green with a distinctive triple-stitch border in white thread that separates the dark green from the neon green.

All Apple Watch Ultra models fit the single-size 49mm case. The Trail Loop is made primarily of nylon.

Source: Apple (Product, Newsroom), Bandbreite

Apple Watch Solo Loop (Northern Lights, 45 mm, Size 12, Spring 2025)

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 Northern Lights, a shade of bright green (almost neon). The color was very close to the Sprout Green Solo Loop from Spring 2023, as pictured in the accompanying photos. It was available in 41 mm and 45 mm widths, and was sold in specific wrist sizes. The 41 mm Solo Loop was sold in wrist sizes 1–9, and the 45 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, Bandbreit (Northern Lights, Sprout Green)

Magnetic Link (Black, 45 mm, M/L, Fall 2024)

When Apple launched the Apple Watch Series 9, the company also discontinued their use of leather in all their products and introduced a new material they called FineWoven. In a press release, Apple announced:

“Apple is introducing FineWoven, a luxurious and durable microtwill made of 68 percent post-consumer recycled content that has significantly lower carbon emissions compared to leather. FineWoven has a suedelike feel, and is available with the Magnetic Link and Modern Buckle bands.”

The Magnetic Link design closely resembled the previous Leather Link design. Apple described the band:

“The Magnetic Link with FineWoven elegantly wraps around the wrist and magically attaches with molded magnets that gently flex to help maintain security and comfort throughout the day…”

The product specifications indicate that the Magnetic Link is made from “68% post-consumer recycled polyester” and “100% recycled rare earth elements in magnets.” The 41 mm Magnetic Link is offered in a S/M size (130–160 mm) and a M/L size (140–180 mm), while the 45 mm size is offered in S/M (140–180 mm) and M/L (165–205 mm) options.

This Magnetic Link is Black, and fits 45 mm Apple Watch devices.

Sources: Apple (Newsroom, Product), Bandbreite

Apple Watch Solo Loop (Eucalyptus, 45 mm, Size 12, Spring 2022)

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 Eucalyptus, a shade of dark green. It was available in 41 mm and 45 mm widths, and was sold in specific wrist sizes. The 41 mm Solo Loop was sold in wrist sizes 1–9, and the 45 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 measurements such as blood oxygen and heart rate to be maintained.

Source: Apple, Bandbreit app

Apple Watch Solo Loop (Storm Blue, 45 mm, Size 12, Fall 2022)

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

Apple Watch Solo Loop (Starlight, 45 mm, Size 12, 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 Starlight, a shade of light beige. It was available in 41 mm and 45 mm widths, and was sold in specific wrist sizes. The 41 mm Solo Loop was sold in wrist sizes 1–9, and the 45 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, Bandbreit app