The iPhone 18 Pro, if you can use the upgrades.
Each row is something review sites agreed on. Open a row for the details.
The iPhone 18 Pro lasts longer. In GSMArena's battery test it ran 16 hours 43 minutes of active use, against 12 hours 58 minutes for the iPhone 15 Pro. Reviewers found it easily lasts a full day of heavy use.
4 sites agree: Trusted Reviews, Tech Advisor and 2 moreThe iPhone 18 Pro charges much faster. It has 60W wired charging and reaches about 74% in 30 minutes. The iPhone 15 Pro reaches 57% in that time. Reviewers confirmed about half a charge in 15 minutes with the right charger.
3 sites agree: CNET, Trusted Reviews and 1 moreThe iPhone 18 Pro has a variable aperture, a 4x telephoto and a 48MP ultrawide. Reviewers said low-light shots improve and the step up is bigger from older models like the iPhone 15 Pro. Gains in everyday photos are small.
4 sites agree: Amateur Photographer, CNET and 2 moreThe iPhone 15 Pro is 187g and 8.25mm thick. The iPhone 18 Pro is 211g and 8.8mm. Reviewers called the newer phone heavy but sturdy, and AppleInsider noted the extra weight.
3 sites agree: CNET, AppleInsider and 1 moreThe iPhone 18 Pro has a 6.3-inch screen and the iPhone 15 Pro has 6.1 inches. The newer screen is brighter outdoors and has a smaller Dynamic Island. Reviewers called it one of the best phone screens.
3 sites agree: The Guardian, Trusted Reviews and 1 moreThe lowest prices we track today.
Reebelo
New · 128GB
$888.95
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Apple
New
$999
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Certified refurbished
1 seller
from $479
See refurbished
We don't track a price for the iPhone 18 Pro yet. It launched at $1,199.
Choosing the cheaper iPhone 15 Pro means giving up most on: Camera zoom, Battery life
How they compare
Choosing the cheaper iPhone 15 Pro means giving up most on: Camera zoom, Battery life
Specifications are sourced from manufacturers and third-party databases and may contain errors. Suggest a correction →
Specifications are sourced from manufacturers and third-party databases and may contain errors. Suggest a correction →
Testing & benchmarks
Dimensions shown in inches (mm). Silhouettes are proportionally scaled for visual comparison.
Mostly yes, if you want better battery life and cameras. Reviewers said iPhone 15 Pro owners will notice the jump. One site said they could replace the battery instead, since most people do not need the telephoto lens.
Yes. The iPhone 18 Pro has a bigger battery and a more efficient chip. In GSMArena's test it ran nearly four hours longer than the iPhone 15 Pro. Reviewers said it easily lasts a full day of heavy use.
Yes. The iPhone 18 Pro adds a 4x telephoto, a better ultrawide and a variable aperture. Reviewers said the gains are larger from older models like the iPhone 15 Pro. Low-light photos and video improve most.
Other head-to-head matchups for the phones on this page.
Specifications sourced from manufacturers and third-party databases. Last updated October 2026. Suggest a correction →
