Samsung Watch Band Compatibility & Sizing (20mm vs 22mm)
Find the right Samsung Galaxy Watch band size — from the original Gear S2 and Galaxy Watch through the latest Watch 7, Ultra, and Watch 8. Select your watch model below to see which band width and length fits.
Compatibility First
Samsung Galaxy Watch Band Size Guide
What Samsung Galaxy Watch do you have? (tap to select)
Watch 7 / FE
20 mm
Watch 6 / 6 Classic
20 mm
Watch 5 / 5 Pro
20 mm
Watch 4 / 4 Classic
20 mm
Active / Active 2 / Watch 42mm
20 mm
Watch 3 (41mm)
20 mm
Watch 3 (45mm) / 46mm / Gear S3
22 mm
Watch Ultra
adapter needed
Watch 8 / 8 Classic
adapter needed
✅ You need a 20 mm band
Your watch uses the standard 20 mm quick-release band width. Pick S/M or M/L based on your wrist size below.
Shop Samsung Bands →
Shop Samsung Bands →
✅ You need a 22 mm band
Your watch uses the larger 22 mm quick-release band width. Pick S/M or M/L based on your wrist size below.
Shop Samsung Bands →
Shop Samsung Bands →
⚡ Watch 8 — Works with an adapter
Samsung changed the band connector on the Watch 8 series. Grab our Watch 8 Adapter (available in 20 mm or 22 mm), and every Fancy Bands strap in that width will fit your Watch 8. Pick your band width, then choose S/M or M/L below.
Get the Watch 8 Adapter →
Get the Watch 8 Adapter →
⚠️ Proprietary Band System
The Galaxy Watch Ultra uses Samsung's proprietary Dynamic Lug connector — standard 20 mm or 22 mm bands won't fit directly. We don't currently carry Ultra-specific bands or adapters, but our 20 mm Samsung bands work with an Ultra adapter (sold separately by third-party sellers).
Need help? Email us at customer-support@fancybands.net
Wrist Size → Band Length
| Band Width | Small (S/M) | Large (M/L) | Fit Note |
|---|---|---|---|
| 20 mm | 5.5”–6.7” wrist | 6.3”–8.1” wrist | Most Galaxy Watch models |
| 22 mm | 5.5”–6.7” wrist | 6.3”–8.1” wrist | Watch 3 45mm, Watch 46mm, Gear S3 |
Between sizes? Pick M/L for extra slack or S/M for a snugger fit.
NOT SURE ABOUT YOUR WRIST SIZE?
1Wrap a flexible tape measure (or a strip of paper) around your wrist where you normally wear your watch.
2Note the measurement. If using paper, mark where it overlaps, then lay it flat against a ruler.
3Match to your band size: Under 6.7” → S/M. Over 6.3” → M/L. In between? Either works — S/M for snug, M/L for relaxed.
Tip: Measure at the end of the day when your wrist is slightly larger. This ensures a comfortable fit at all times.
Common Questions
How do I know if my Samsung watch uses 20 mm or 22 mm?
Check the back of your current band or look up your model in the Galaxy Wearable app under About. Most newer Samsung watches (Watch 4 through Watch 7) use 20 mm. Older 46 mm watches, Watch 3 45 mm, and Gear S3 use 22 mm. The Galaxy Watch Ultra uses a proprietary Dynamic Lug connector — standard 20 mm or 22 mm bands won’t fit without an adapter.
Will Fancy Bands work with the Galaxy Watch 8?
Yes! Samsung changed the band connector on the Watch 8 series, but our Watch 8 Adapter lets you use any Fancy Bands strap. Just pick the adapter that matches your band width (20 mm or 22 mm) and you are set.
What is the difference between S/M and M/L?
S/M fits wrists 5.5”–6.7” (140–170 mm) and M/L fits 6.3”–8.1” (160–206 mm). There is overlap in the middle — if you are between sizes, S/M gives a snugger fit and M/L gives more slack.
What if I pick the wrong size?
No stress — exchanges are always free at Fancy Bands. Just visit our Returns & Exchanges page to start a return, or email us at customer-support@fancybands.net and we’ll get you the right fit.
Note: Watch not included. Band and accessories sold separately.