Head to head
Xiaomi Xiaomi 17TvsSamsung Galaxy S26
The short answer
Choose the Xiaomi 17T for peak brightness, battery capacity, battery life per charge and faster charging. Choose the Galaxy S26 for lower weight and 3DMark graphics score. The Xiaomi 17T is £230 cheaper at UK RRP (£649 against £879). Only the Galaxy S26 has a published security end date (February 2033); Xiaomi publishes none for the Xiaomi 17T.
- Released
- 2026-05-28GSMArena — Xiaomi 17T specifications, retrieved 2026-08-21
- Price
- £649Xiaomi UK store — Xiaomi 17T (list / original price, 12 GB + 256 GB), retrieved 2026-09-12
- Security updates until
- Not published by the makerXiaomi UK — Xiaomi 17T specs, retrieved 2026-08-21
- Released
- 2026-03-06endoflife.date, retrieved 2026-08-20
- Price
- £879Samsung Newsroom UK — Galaxy S26 series, retrieved 2026-08-20
- Security updates until
- 2033-02-28Samsung UK spec API — Galaxy S26, retrieved 2026-09-22
4 wins for Xiaomi 17T2 wins for Galaxy S262 gaps borderline0 differences you won’t notice£230 apart at RRP
Verdict: Xiaomi 17T ahead on 4 rows, Galaxy S26 on 2 rows
On the makers’ figures and the named third-party sources, the Xiaomi 17T wins on peak brightness (3,500 nits from the maker against 2,600 nits from GSMArena), battery capacity (6,500 mAh against 4,300 mAh), battery per charge (65.67 h against 51 h) and fast charging (67 W against 25 W); the Galaxy S26 wins on weight (167 g against 200 g) and 3DMark Wild Life Extreme (6,531 against 3,980, both from 3DMark). 2 gaps are borderline, differences most people would not notice: display size (6.59 in against 6.3 in) for the Xiaomi 17T and battery lifespan (1,200 cycles against 1,000 cycles) for the Galaxy S26. Both state the same refresh rate, storage (base) and RAM. The other 35 rows have no threshold or no direction to judge by, so nobody wins them.
True to scale
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. 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
Xiaomi UK — Xiaomi 17T specs claims Xiaomi HyperOS 3 · GSMArena — Xiaomi 17T specifications reports Android 16, HyperOS 3
Memory
Camera
Battery
Connectivity
Benchmarks
5 attributes neither phone has a sourced figure for
Typical brightness · HDR peak brightness · OS versions supported · Google Mobile Services · Geekbench 6 (CPU, multi-core). Rows appear as sources are cited — a gap in our data, not a statement about either phone.
Questions
Is the Xiaomi 17T better than the Galaxy S26?
On the figures, neither is better overall: the Xiaomi 17T wins on peak brightness, 3,500 nits (Xiaomi UK) against 2,600 nits (GSMArena), battery capacity, 6,500 mAh (Xiaomi UK) against 4,300 mAh (Samsung Newsroom UK), battery per charge, 65.67 h against 51 h (both EU energy label) and fast charging, 67 W (Xiaomi UK) against 25 W (Samsung Newsroom UK); the Galaxy S26 wins on weight, 167 g (Samsung Newsroom UK) against 200 g (Xiaomi UK) and 3DMark Wild Life Extreme, 6,531 against 3,980 (both 3DMark). Every other row is borderline, too close to notice, or not ranked.
Which has the better battery?
The Xiaomi 17T, by a gap you’d notice: battery per charge, 65.67 h against 51 h (both EU energy label). The Xiaomi 17T, by a gap you’d notice: battery capacity, 6,500 mAh (Xiaomi UK) against 4,300 mAh (Samsung Newsroom UK).
Which is lighter?
The Galaxy S26, by a gap you’d notice: weight, 167 g (Samsung Newsroom UK) against 200 g (Xiaomi UK).
Which has the brighter screen?
The Xiaomi 17T, by a gap you’d notice: peak brightness, 3,500 nits (Xiaomi UK) against 2,600 nits (GSMArena).
Which gets updates for longer?
Only the Galaxy S26 has a published security end date (February 2033); Xiaomi publishes none for the Xiaomi 17T. Sources: dates from Samsung UK spec API.
Which is cheaper?
The Xiaomi 17T is £230 cheaper at UK RRP (£649 against £879). Prices from Xiaomi 17T: Xiaomi UK store; Galaxy S26: Samsung Newsroom UK.
Other comparisons
The pairs a buyer of either phone would also weigh. Any two phones in the catalogue can be compared from the chooser.