Head to head
Samsung Galaxy Watch Ultra2 47mmvsSamsung Galaxy Watch Ultra 47mm
- Released
- 2026-08-07Samsung Newsroom UK — Galaxy Watch Ultra2 and Watch9, retrieved 2026-09-13
- Price
- £649Samsung Newsroom UK — Galaxy Watch Ultra2 and Watch9, retrieved 2026-09-22
- Security updates until
- Not published by the makerSamsung UK — How to update software on Galaxy Watch, retrieved 2026-09-13
- Released
- 2025-07-25Samsung Newsroom UK — Galaxy Watch8 series, retrieved 2026-09-13
- Security updates until
- Not published by the makerSamsung UK — How to update software on Galaxy Watch, retrieved 2026-09-13
1 win for Galaxy Watch Ultra2 47mm0 wins for Galaxy Watch Ultra 47mm1 difference you won’t notice
Verdict: Galaxy Watch Ultra2 47mm ahead on 1 row, Galaxy Watch Ultra 47mm on none
On the makers’ published figures, the Galaxy Watch Ultra2 47mm wins on peak brightness (5,000 nits against 3,000 nits). The difference in weight (case only) is below the threshold you would notice. Both state the same case size and battery life (maker's claim). The other 26 rows have no threshold or no direction to judge by, so nobody wins them.
True to scale
Case outlines from each maker’s published dimensions, drawn to scale. A round case is an ellipse at those figures.
Specifications
A win is marked only where the figures can be ranked and the gap is one you could notice on the wrist. A row the site has no threshold for says whether the two differ, and that it is not ranking them. = marks the same figure on both, ≠ not ranked a difference with no ranking. Every figure carries its source.
Body
Display
Platform
Battery
Health
Connectivity
5 attributes neither watch has a sourced figure for
Strap width · Display area · Charge to 80% · Blood oxygen · Blood pressure. Rows appear as sources are cited — a gap in our data, not a statement about either watch.
Other comparisons
The pairs a buyer of either watch would also weigh. Any two watches in the catalogue can be compared from the chooser.