Quick answer · October 2026
iPhone RAM, every model
Which iPhone has the most RAM? iPhone 18 Pro Max, of the iPhones Apple sells today (12 GB). Apple does not publish RAM for iPhones. These figures are the ones read from Apple’s own Xcode device data, as reported by MacRumors for 2025 and 2026 models and collected in Wikipedia’s list of iPhone models for older ones.
iPhone Duo is left out: its RAM has not been confirmed. It uses the same A20 Pro chip as iPhone 18 Pro, which has 12 GB, so 12 GB is expected.
Full ranking
Every iPhone, ranked.
RAM sources: MacRumors (Xcode data) for iPhone 18 Pro, iPhone 17, Air, 17 Pro and 17e; Wikipedia’s List of iPhone models for older models. Each model page links its source.
FAQ
Questions people ask
- Which iPhone has the most RAM?
- iPhone 18 Pro Max — 12 GB. Next among current models is iPhone 18 Pro (12 GB).
- How does iPhone 18 Pro Max compare with iPhone 18 Pro?
- iPhone 18 Pro Max: 12 GB. iPhone 18 Pro: 12 GB. See the two drawn to scale on the head-to-head page.