Head to head
Apple Apple Watch Ultra 4 49mmvsApple Apple Watch Ultra 2 49mm
- Released
- 2026-09-18Apple UK Newsroom — Apple Watch Ultra 4, retrieved 2026-09-13
- Price
- £749Apple UK store, retrieved 2026-09-13
- Security updates until
- Not published by the makerApple UK — watchOS 27 compatible models, retrieved 2026-09-22
- Released
- 2023-09-22endoflife.date, retrieved 2026-09-13
- Security updates until
- Not published by the makerApple UK — watchOS 27 compatible models, retrieved 2026-09-22
0 wins for Apple Watch Ultra 4 49mm0 wins for Apple Watch Ultra 2 49mm2 gaps borderline1 difference you won’t notice
Verdict: nothing you’d notice between them
On the makers’ published figures, neither the Apple Watch Ultra 4 49mm nor the Apple Watch Ultra 2 49mm wins a row by a gap you would notice. 2 gaps are borderline, differences most people would not notice: battery life (maker's claim) (50 h against 36 h) for the Apple Watch Ultra 4 49mm and charge to 80% (45 min against 60 min) for the Apple Watch Ultra 4 49mm. The difference in weight (case only) is below the threshold you would notice. Both state the same case size and peak brightness. The other 24 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. Corner rounding is our drawing convention, not a measurement.
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
6 attributes neither watch has a sourced figure for
Strap width · Display size · RAM · Battery capacity · Blood pressure · Cellular model price. 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.