Should I upgrade my iPhone 15 Pro?
The Apple iPhone 15 Pro went on sale on 22 September 2023. It has a 6.1-inch display, a weight of 187 g, the A17 Pro chip, a 48 MP main camera and 128 GB of storage to start. Apple claims up to 23 hours of video playback. Apple publishes no end date for its security updates. Every figure in the Apple iPhone 15 Pro specifications below links the page it came from and the date it was read.
3 years oldNo published support end dateRead
Is it still supported?
Apple publishes no end date, and this site does not guess one. The support card on the iPhone 15 Pro page says what is known and where it came from.endoflife.date — iPhone, retrieved 2026-08-19
What the iPhone 18 Pro changes
The newest Apple phone in this line is the iPhone 18 Pro at £1,199, released 18 September 2026. Judged row by row against our published thresholds; the full table is at iPhone 18 Pro vs iPhone 15 Pro.
On the makers’ published figures, the iPhone 18 Pro wins on peak brightness (3,000 nits against 2,000 nits), storage (base) (256 GB against 128 GB), claimed video playback (34 h against 23 h) and fast charging (60 W against 20 W). 5 gaps are borderline, differences most people would not notice: weight (187 g against 211 g) for the iPhone 15 Pro, display size (6.3 in against 6.1 in) for the iPhone 18 Pro, RAM (12 GB against 8 GB, both from GSMArena) for the iPhone 18 Pro, battery capacity (4,056 mAh against 3,274 mAh, both from GSMArena) for the iPhone 18 Pro and wireless charging (25 W against 15 W) for the iPhone 18 Pro. Both state the same refresh rate, typical brightness and HDR peak brightness. The other 33 rows have no threshold or no direction to judge by, so nobody wins them.
- Peak brightness: 2,000 nits → 3,000 nits
- Storage (base): 128 GB → 256 GB
- Claimed video playback: 23 h → 34 h
- Fast charging: 20 W → 60 W
- Weight: 187 g → 211 g borderline; marginal — most people won’t notice.
- Display size: 6.1 in → 6.3 in borderline; marginal — most people won’t notice.
- RAM: 8 GB → 12 GB borderline; marginal — most people won’t notice.
- Battery capacity: 3,274 mAh → 4,056 mAh borderline; marginal — most people won’t notice.
- Wireless charging: 15 W → 25 W borderline; marginal — most people won’t notice.
Other makers at the price
Phones from other makers released within a year of the iPhone 18 Pro and priced within a quarter of its £1,199, nearest price first, each judged the same way against your iPhone 15 Pro — or, where that pair is not one this site indexes, against the iPhone 18 Pro.
What yours is worth
Our reading of the figures
Apple publishes no end date for the iPhone 15 Pro’s security updates, so support is not a reason to move until it is.
The iPhone 18 Pro clears our noticeable threshold on 4 rows: peak brightness, storage (base), claimed video playback, fast charging. 5 more gaps are borderline, which most people would not notice. Nothing goes backwards.
At £1,199 new, less the £279 CeX was paying for a grade A iPhone 15 Pro on 2026-02-11, the move costs about £920.
Every sentence above is built from the figures on this page by a rule, not written for this phone: a support date, the rows that clear a published threshold, a price and a trade-in. There is no score and no recommendation. The methodology page has the thresholds and where they come from. Every phone’s version of this page is listed at All upgrade questions.