Head to head
Xiaomi Xiaomi 17TvsNothing Phone (3)
The short answer
Choose the Xiaomi 17T for battery capacity and battery life per charge. Choose the Nothing Phone (3) for peak brightness and battery lifespan. The Xiaomi 17T is £50 cheaper at UK RRP (£649 against £699). Only the Nothing Phone (3) has a published security end date (July 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
- 2025-07-15GSMArena — Nothing Phone (3) specifications, retrieved 2026-08-20
- Price
- £699Nothing UK store — Phone (3), retrieved 2026-08-20
- Security updates until
- 2032-07-15Nothing UK — Phone (3), retrieved 2026-08-20
2 wins for Xiaomi 17T2 wins for Nothing Phone (3)1 gap borderline3 differences you won’t notice£50 apart at RRP
Verdict: Xiaomi 17T ahead on 2 rows, Nothing Phone (3) on 2 rows
On the makers’ published figures, the Xiaomi 17T wins on battery capacity (6,500 mAh against 5,150 mAh) and battery per charge (65.67 h against 56.38 h); the Phone (3) wins on peak brightness (4,500 nits against 3,500 nits) and battery lifespan (1,400 cycles against 1,000 cycles). One gap is borderline, a difference most people would not notice: weight (200 g against 218 g) for the Xiaomi 17T. The differences in display size, fast charging and 3DMark Wild Life Extreme are below the thresholds you would notice. Both state the same refresh rate, storage (base) and RAM. The other 33 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
7 attributes neither phone has a sourced figure for
HDR peak brightness · OS versions supported · Google Mobile Services · Claimed video playback · Geekbench 6 (CPU, multi-core) · DXOMARK camera score · SAR (EU, head). 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 Nothing Phone (3)?
On the figures, neither is better overall: the Xiaomi 17T wins on battery capacity, 6,500 mAh (Xiaomi UK) against 5,150 mAh (Nothing UK) and battery per charge, 65.67 h against 56.38 h (both EU energy label); the Nothing Phone (3) wins on peak brightness, 4,500 nits (Nothing UK) against 3,500 nits (Xiaomi UK) and battery lifespan, 1,400 cycles against 1,000 cycles (both EU energy label). 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 56.38 h (both EU energy label). The Xiaomi 17T, by a gap you’d notice: battery capacity, 6,500 mAh (Xiaomi UK) against 5,150 mAh (Nothing UK).
Which is lighter?
The Xiaomi 17T is lighter, narrowly: weight, 200 g (Xiaomi UK) against 218 g (Nothing UK), a borderline gap most people would not notice.
Which has the brighter screen?
The Nothing Phone (3), by a gap you’d notice: peak brightness, 4,500 nits (Nothing UK) against 3,500 nits (Xiaomi UK).
Which gets updates for longer?
Only the Nothing Phone (3) has a published security end date (July 2032); Xiaomi publishes none for the Xiaomi 17T. Sources: dates from Nothing UK.
Which is cheaper?
The Xiaomi 17T is £50 cheaper at UK RRP (£649 against £699). Prices from Xiaomi 17T: Xiaomi UK store; Nothing Phone (3): Nothing 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.