PhoneLifespan

iPhone 14 Pro Max vs 15T

vs

It depends

Too close to call outright

These two are within 3 points overall, so it depends on you: keep phones for years → 15T (supported until Sep 2030); want maximum speed → iPhone 14 Pro Max (Apple A16 Bionic).

Value Score: iPhone 14 Pro Max 67 · 15T 70 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 14 Pro Max $437
Safe to buy$11.17/mo
2022◆ Buy-by Sep 20272029
Xiaomi 15T $500
Safe to buy$9.73/mo
2025◆ Buy-by Sep 20282030

Category by category

Display
iPhone 14 Pro Max 8015T 70

The iPhone 14 Pro Max's screen is the better one — 6.7-inch ltpo super retina xdr oled, promotion 120hz, always-on, up to 2000 nits peak.

Performance
iPhone 14 Pro Max 8015T 78

Performance is a wash — same chip tier.

Camera
iPhone 14 Pro Max 7415T 79

The 15T has the stronger camera system — same lens count, higher-grade sensors.

Battery
iPhone 14 Pro Max 6615T 90

5,500mAh vs 4,323mAh — the 15T lasts longer between charges.

Software longevity
iPhone 14 Pro Max 4715T 61

The 15T is supported until Sep 2030 — 12 months longer than the iPhone 14 Pro Max.

Value
iPhone 14 Pro Max 6715T 70

Pound for pound, these two are equally good deals.

Full spec table
SpeciPhone 14 Pro Max15T
Price (street)$437$500
Display6.7-inch LTPO Super Retina XDR OLED, ProMotion 120Hz, always-on, up to 2000 nits peak6.83-inch AMOLED, 2772x1280, 144Hz
ChipsetApple A16 BionicMediaTek Dimensity 8400-Ultra
RAM6GB12GB
Storage128GB/256GB/512GB/1TB256GB/512GB
Battery4,323 mAh5,500 mAh
Charging20W wired (50% in ~30 min), MagSafe 15W wireless67W wired
Rear cameras48MP main, 12MP ultra-wide, 12MP telephoto 3x50MP main, 50MP telephoto 2x, 12MP ultra-wide
Dimensions160.7 × 77.6 × 7.85 mm163.2 × 78.0 × 7.5 mm
Weight240 g194 g
Water resistanceIP68IP68
Supported untilSep 2029Sep 2030

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