PhoneLifespan

iPhone 17 vs 15T Pro

vs

It depends

Too close to call outright

These two are within 1 point overall — it genuinely depends on price on the day. The iPhone 17 edges both longevity and performance, so prefer it when prices are close.

Value Score: iPhone 17 68 · 15T Pro 69 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 17 $799
Safe to buy$10.62/mo
2025◆ Buy-by Sep 20302032
Xiaomi 15T Pro $650
Safe to buy$12.65/mo
2025◆ Buy-by Sep 20282030

Category by category

Display
iPhone 17 9015T Pro 70

The iPhone 17's screen is the better one — 6.3-inch super retina xdr oled, promotion 1–120hz, up to 3000 nits peak.

Performance
iPhone 17 9615T Pro 94

Performance is a wash — same chip tier.

Camera
iPhone 17 6215T Pro 79

The 15T Pro has the stronger camera system (3 real rear lenses vs 2).

Battery
iPhone 17 5415T Pro 90

5,500mAh vs 3,692mAh — the 15T Pro lasts longer between charges.

Software longevity
iPhone 17 9015T Pro 61

The iPhone 17 is supported until Sep 2032 — 24 months longer than the 15T Pro.

Value
iPhone 17 6815T Pro 69

Pound for pound, these two are equally good deals.

Full spec table
SpeciPhone 1715T Pro
Price (street)$799$650
Display6.3-inch Super Retina XDR OLED, ProMotion 1–120Hz, up to 3000 nits peak6.83-inch AMOLED, 2772x1280, 144Hz
ChipsetApple A19MediaTek Dimensity 9400+
RAM8GB12GB
Storage256GB/512GB256GB/512GB/1TB
Battery3,692 mAh5,500 mAh
ChargingWired fast charge — 50% in 20 min with a 40W+ adapter; MagSafe wireless up to 25W90W wired, 50W wireless
Rear cameras48MP main, 48MP ultra-wide50MP main, 50MP telephoto 5x periscope, 12MP ultra-wide
Dimensions149.6 × 71.5 × 7.95 mm162.7 × 77.9 × 8.0 mm
Weight177 g210 g
Water resistanceIP68IP68
Supported untilSep 2032Sep 2030

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