Head to head
Xiaomi Xiaomi 17TvsXiaomi REDMI Note 15 Pro 5G
The short answer
Neither the Xiaomi 17T nor the REDMI Note 15 Pro 5G wins a row by a gap you’d notice. The REDMI Note 15 Pro 5G is £300 cheaper at UK RRP (£349 against £649). Only the REDMI Note 15 Pro 5G has a published security end date (January 2032); 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
- 2026-01-06GSMArena — Xiaomi Redmi Note 15 Pro specifications, retrieved 2026-08-20
- Price
- £349Xiaomi UK store — REDMI Note 15 Pro 5G (list / original price, 8 GB + 256 GB), retrieved 2026-09-12
- Security updates until
- 2032-01-06Xiaomi UK — REDMI Note 15 Pro 5G, retrieved 2026-08-20
0 wins for Xiaomi 17T0 wins for REDMI Note 15 Pro 5G5 gaps borderline2 differences you won’t notice£300 apart at RRP
Verdict: nothing you’d notice between them
On the makers’ published figures, neither the Xiaomi 17T nor the REDMI Note 15 Pro 5G wins a row by a gap you would notice. 5 gaps are borderline, differences most people would not notice: display size (6.83 in against 6.59 in) for the REDMI Note 15 Pro 5G, peak brightness (3,500 nits against 3,200 nits) for the Xiaomi 17T, RAM (12 GB against 8 GB) for the Xiaomi 17T, battery per charge (65.67 h against 60.83 h) for the Xiaomi 17T and fast charging (67 W against 45 W) for the Xiaomi 17T. The differences in weight and battery capacity are below the thresholds you would notice. Both state the same refresh rate, storage (base) and battery lifespan. The other 34 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
Xiaomi UK — REDMI Note 15 Pro 5G specs claims Xiaomi HyperOS 2 · GSMArena — Xiaomi Redmi Note 15 Pro specifications reports Android 15, HyperOS 2
Xiaomi UK — REDMI Note 15 Pro 5G specs claims Octa-core, up to 2.6GHz · GSMArena — Xiaomi Redmi Note 15 Pro specifications reports Octa-core (4x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
Memory
Camera
Battery
Connectivity
Benchmarks
7 attributes neither phone has a sourced figure for
Typical brightness · HDR peak brightness · OS versions supported · Google Mobile Services · Wireless charging · Geekbench 6 (CPU, multi-core) · DXOMARK camera score. 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 REDMI Note 15 Pro 5G?
On the figures, neither: no row has a gap between them you’d notice. The differences that exist are borderline, too close to notice, or not ranked.
Which has the better battery?
The Xiaomi 17T is ahead, narrowly: battery per charge, 65.67 h against 60.83 h (both EU energy label), a borderline gap most people would not notice. The REDMI Note 15 Pro 5G is ahead on paper, but not by a gap you’d notice: battery capacity, 6,580 mAh against 6,500 mAh (both Xiaomi UK).
Which is lighter?
The Xiaomi 17T is lighter on paper, but not by a gap you’d notice: weight, 200 g against 210 g (both Xiaomi UK).
Which has the brighter screen?
The Xiaomi 17T is brighter, narrowly: peak brightness, 3,500 nits against 3,200 nits (both Xiaomi UK), a borderline gap most people would not notice.
Which gets updates for longer?
Only the REDMI Note 15 Pro 5G has a published security end date (January 2032); Xiaomi publishes none for the Xiaomi 17T. Sources: dates from Xiaomi UK.
Which is cheaper?
The REDMI Note 15 Pro 5G is £300 cheaper at UK RRP (£349 against £649). Prices from Xiaomi 17T: Xiaomi UK store; REDMI Note 15 Pro 5G: Xiaomi UK store.
Other comparisons
The pairs a buyer of either phone would also weigh. Any two phones in the catalogue can be compared from the chooser.