Samsung
Samsung Galaxy Watch Ultra Band Size & Fitting
The Samsung Galaxy Watch Ultra only takes bands made for the Ultra line. Samsung says standard 20mm bands won't fit.
Lug fittingUltra bands
| Strap fitting | Ultra bands |
|---|---|
| Case size | 47 mm |
| Lug-to-lug | — |
| Thickness | — |
Which model do you have?
Similar-looking models can take different bands. Your model and case size are on the box, your receipt or the watch's settings.
| Model | Case | Band |
|---|---|---|
| Galaxy Watch 4 / 4 Classic | 40–46mm | 20mm |
| Galaxy Watch 5 / 5 Pro | 40–45mm | 20mm |
| Galaxy Watch 6 | 40–44mm | 20mm |
| Galaxy Watch 7 | 40–44mm | 20mm |
| Galaxy Watch 8 / 8 Classic | 40–46mm | Watch8 bands |
| Galaxy Watch Ultra | 47mm | Ultra bands |
Strap styles that fit
- Brand / OEM strapMade for this exact model.
- Adapter + standard strapBuy a model-specific adapter first.
- NATO / pass-throughNo standard lugs to pass through.
- 2-piece leatherNeeds an adapter to fit.
- Rubber / FKMOEM or adapter only.
- Metal braceletModel-specific bracelet only.
▲ Ultra bands only; Samsung says standard 20mm bands won't fit.
Fit & sizing notes for the Galaxy Watch Ultra
- What to buy: straps made for the Galaxy Watch Ultra, or an adapter kit for this exact model. A normal-width strap won't attach on its own. Our integrated & smartwatch strap guide explains the options.
- Adapters stick out past the case, so the watch wears longer; check the adapter's output width before buying straps for it.
- Every Samsung model: see our Galaxy Watch band size guide for which bands fit each one.
Sources & corrections
Fitting checked against: Samsung: which band size fits my watch. Last checked 24 October 2026.
Spec wrong for your watch? Send us a correction with your reference number.
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Samsung Galaxy Watch Ultra — band questions
What strap size does the Galaxy Watch Ultra take?
The Samsung Galaxy Watch Ultra only takes bands made for the Ultra line. Samsung says standard 20mm bands won't fit.
Can I put a normal NATO or leather strap on it?
Not directly. A standard strap won't attach on its own. Where a model-specific adapter exists, fit that first and then a normal strap of the adapter's width.
Where can I buy straps that fit the Galaxy Watch Ultra?
Search for straps and adapters made specifically for the Samsung Galaxy Watch Ultra; generic sizes won't clip in without one.