Apple Watch Band Size GuideUpdated 17 hours ago
Can't figure out which size band you need for your Apple Watch? You've come to the right place.
To identify what Apple Watch you have, look for the series number on the back of the watch face. Alternatively, find the series number in the Apple Watch app on your iPhone under:
My Watch > General > About
Please refer to the sizing chart below to find the right size band for your Apple Watch series and size.
| Your Apple Watch series | Your Apple Watch size | Compatible Nomad band size |
| Ultra 1-3 | 49mm | Ultra / 46mm |
| Series 10 & 11 | 46mm | Ultra / 46mm |
| 42mm | 41mm / 42mm | |
| Series 7-9 | 45mm | Ultra / 46mm |
| 41mm | 41mm / 42mm | |
| SE 1-3 | 44mm | Ultra / 46mm |
| 40mm | 41mm / 42mm | |
| Series 4-6 | 44mm | Ultra / 46mm |
| 40mm | 41mm / 42mm | |
| Series 1-3 | 42mm | Ultra / 46mm |
| 38mm | 41mm / 42mm |
Our 41mm / 42mm bands are compatible with:
- Apple Watch 42mm (Series 10 and 11), 41mm (Series 7-9), 40mm (Series 4-6 and SE), 38mm (Series 1-3)
Our Ultra / 46mm bands are compatible with:
Apple Watch 49mm (Ultra 1-3), 46mm (Series 10 and 11), 45mm (Series 7-9), 44mm (Series 4 and 5), and 42mm (Series 1-3 only)
For Apple Watch Series 4 and 5, Apple increased the size of the display of both the larger and smaller watch sizes from 42mm and 38mm, respectively, to 44mm and 40mm. Additionally, for Apple Watch Series 7 and beyond, Apple increased the size of the display of both the larger and smaller watch sizes from 44mm and 40mm, respectively, to 45mm and 41mm. For Apple Watch Series 10 and 11, Apple increased the display size of both the larger and smaller watch sizes from 45mm and 41mm, respectively, to 46mm and 42mm. All Apple Watch Ultras have 49mm displays.
Although the overall display of the newer Apple Watches is larger, the area where the band attaches to the watch remains the same as the previous series for consistency in band compatibility. The sizes on our website now show 'Ultra / 46mm' (which fit a 49mm, 46mm, 45mm, 44mm, or 42mm Apple Watch) and '41mm/42mm' (which fit a 42mm, 41mm, 40mm, or 38mm Apple Watch).
Shopping for Tempo Band? Unlike our other bands, Tempo is available in 3 sizes: 49mm / Ultra, 45mm / 46mm, and 41mm / 42mm. Please refer to the sizing chart below to figure out which size band you need.
| Your Apple Watch series | Your Apple Watch size | Compatible Nomad band size |
| Ultra 1-3 | 49mm | 49mm / Ultra 45mm / 46mm |
| Series 10 & 11 | 46mm | 49mm / Ultra 45mm / 46mm |
| 42mm | 41mm / 42mm | |
| Series 7-9 | 45mm | 49mm / Ultra 45mm / 46mm |
| 41mm | 41mm / 42mm | |
| SE | 44mm | 49mm / Ultra 45mm / 46mm |
| 40mm | 41mm / 42mm | |
| Series 4-6 | 44mm | 49mm / Ultra 45mm / 46mm |
| 40mm | 41mm / 42mm | |
| Series 1-3 | 42mm | 49mm / Ultra 45mm / 46mm |
| 38mm | 41mm / 42mm |
Note, our bands are not compatible with Garmin watches. They’re designed specifically for Apple Watch. To stay up-to-date on future launches, feel free to sign up for early access emails here.
Still unsure? If you have any other questions about our sizing system or our bands, send an email to [email protected] and we'll help you out!