PhoneLifespan

iPhone 13 Pro Max vs iPhone 15 Plus

vs

Winner

Apple iPhone 15 Plus

Lifespan decides this one: the iPhone 15 Plus is supported until Sep 2030 at $7.85 per month of safe use, while the iPhone 13 Pro Max runs out in Sep 2028 ($13.98/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: iPhone 13 Pro Max 63 · iPhone 15 Plus 67 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 13 Pro Max $383
Buy with care$13.98/mo
2021◆ Buy-by Sep 20262028
Apple iPhone 15 Plus $403
Safe to buy$7.85/mo
2023◆ Buy-by Sep 20282030

Category by category

Display
iPhone 13 Pro Max 80iPhone 15 Plus 50

The iPhone 13 Pro Max's screen is the better one — 6.7-inch super retina xdr oled, promotion 120hz, 1200 nits hdr peak.

Performance
iPhone 13 Pro Max 74iPhone 15 Plus 80

The iPhone 15 Plus's Apple A16 Bionic is simply the faster chip.

Camera
iPhone 13 Pro Max 64iPhone 15 Plus 62

Camera systems are comparable on paper — pick by sample photos.

Battery
iPhone 13 Pro Max 67iPhone 15 Plus 68

Battery capacities are close enough not to decide this.

Software longevity
iPhone 13 Pro Max 33iPhone 15 Plus 61

The iPhone 15 Plus is supported until Sep 2030 — 24 months longer than the iPhone 13 Pro Max.

Value
iPhone 13 Pro Max 63iPhone 15 Plus 67

Overall value goes to the iPhone 15 Plus at $7.85 per month of safe use.

Full spec table
SpeciPhone 13 Pro MaxiPhone 15 Plus
Price (street)$383$403
Display6.7-inch Super Retina XDR OLED, ProMotion 120Hz, 1200 nits HDR peak6.7-inch Super Retina XDR OLED, 60Hz, up to 2000 nits peak
ChipsetApple A15 BionicApple A16 Bionic
RAM6GB6GB
Storage128GB/256GB/512GB/1TB128GB/256GB/512GB
Battery4,352 mAh4,383 mAh
Charging20W wired (50% in ~30 min), MagSafe 15W wireless20W+ wired (50% in ~30 min), MagSafe 15W wireless, Qi 7.5W
Rear cameras12MP main, 12MP ultra-wide, 12MP telephoto 3x48MP main, 12MP ultra-wide
Dimensions160.8 × 78.1 × 7.65 mm160.9 × 77.8 × 7.8 mm
Weight240 g201 g
Water resistanceIP68IP68
Supported untilSep 2028Sep 2030

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