The Ocean Band and Ocean Band Extension were released along with the Apple Watch Ultra in 2022. Overall, the Apple Watch Ultra debuted three additional new band designs, the Alpine Loop, Trail Loop, and the Ocean Band.
The Ocean Band was described by Apple:
“The Ocean Band is molded in a high performance elastomer with a tubular geometry allowing it to stretch for a perfect fit, even over a wetsuit. The corrosion-resistant titanium buckle and adjustable loop secure the band during high-speed water sports. A band extension is sold separately to fit over your thickest wetsuit.”
Apple described the Apple Watch Ultra Ocean Band Extension:
“Made from the same high-performance elastomer as the Ocean Band, this band extension lengthens the 49mm Ocean Band by an additional 50 millimeters — perfect if you need extra length to wear the band over your wetsuit. The extension comes with an extra adjustable, corrosion-resistant titanium loop which you can place in any tube to tuck the excess band into. This extension must be used with the regular Ocean Band.”
This band was available in three colors: white, midnight, and yellow. This example is yellow. The Ocean Band Extension paired with the Ocean Band was compatible with Apple Watch models including 44mm, 45mm, and 49mm.
The Ocean band was advertised as “One Size (Fits Most),” and fits 130–200mm wrists. Although the XL Ocean Band Extension was made to wear over a wetsuit, I was hoping that it would allow me to wear the Ocean band with my 215mm wrist because it provides “an additional 50 millimeters” and “comes with an extra adjustable, corrosion-resistant titanium loop, which you can place in any tube to tuck the excess band into.”
Unfortunately, the additional 50mm must be folded back over itself, thus creating a three-layer stack of the band that neither looks good nor feels comfortable. I have provided a few photos of the comically inappropriate back-and-forth looping required to wear this band with a larger wrist. I do not recommended this band or extension.