PhoneLifespan

iPhone 15 Pro Max vs Open

vs

Winner

Apple iPhone 15 Pro Max

Lifespan decides this one: the iPhone 15 Pro Max is supported until Sep 2030 at $14.81 per month of safe use, while the Open runs out in Oct 2028 ($31.90/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: iPhone 15 Pro Max 63 · Open 57 — methodology

The lifespan decider

When specs are close, support length decides it — this is what each phone costs per month of safe use.

Apple iPhone 15 Pro Max $760
Safe to buy$14.81/mo
2023◆ Buy-by Sep 20282030
OnePlus Open $900
Buy with care$31.90/mo
2023◆ Buy-by Oct 20262028

Category by category

Display
iPhone 15 Pro Max 80Open 90

The Open's screen is the better one — 7.82-inch 2k ltpo3 fluid amoled inner foldable (2440×2268, 426 ppi) + 6.31-inch 2k amoled cover (2484×1116, 431 ppi), both 120hz, up to 2800 nits peak.

Performance
iPhone 15 Pro Max 88Open 85

Performance is a wash — same chip tier.

Camera
iPhone 15 Pro Max 74Open 79

The Open has the stronger camera system — same lens count, higher-grade sensors.

Battery
iPhone 15 Pro Max 68Open 76

4,805mAh vs 4,422mAh — the Open lasts longer between charges.

Software longevity
iPhone 15 Pro Max 61Open 34

The iPhone 15 Pro Max is supported until Sep 2030 — 23 months longer than the Open.

Value
iPhone 15 Pro Max 63Open 57

Overall value goes to the iPhone 15 Pro Max at $14.81 per month of safe use.

Full spec table
SpeciPhone 15 Pro MaxOpen
Price (street)$760$900
Display6.7-inch Super Retina XDR OLED, 120Hz ProMotion, Always-On, Dynamic Island, up to 2000 nits peak7.82-inch 2K LTPO3 Fluid AMOLED inner foldable (2440×2268, 426 ppi) + 6.31-inch 2K AMOLED cover (2484×1116, 431 ppi), both 120Hz, up to 2800 nits peak
ChipsetApple A17 ProSnapdragon 8 Gen 2
RAM8GB16GB
Storage256GB/512GB/1TB512GB
Battery4,422 mAh4,805 mAh
ChargingWired ~50% in 30 min with 20W+; MagSafe 15W wireless67W SUPERVOOC wired, no wireless
Rear cameras48MP main, 12MP ultra-wide, 12MP telephoto48MP main, 48MP ultra-wide, 64MP periscope telephoto 3x
Dimensions159.9 × 76.7 × 8.25 mmUnfolded 153.4 × 143.1 × 5.8 mm; Folded 153.4 × 73.3 × 11.7 mm
Weight221 g239 g
Water resistanceIP68IPX4
Supported untilSep 2030Oct 2028
iPhone 15 Pro Max full verdict →Open full verdict →Longevity master board →

Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.