PhoneLifespan

iPhone 15 Plus 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 15 Plus (Apple A16 Bionic).

Value Score: iPhone 15 Plus 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 15 Plus $403
Safe to buy$7.86/mo
2023◆ Buy-by Sep 20282030
Xiaomi 15T $500
Safe to buy$9.73/mo
2025◆ Buy-by Sep 20282030

Category by category

Display
iPhone 15 Plus 5015T 70

The 15T's screen is the better one — 6.83-inch amoled, 2772x1280, 144hz.

Performance
iPhone 15 Plus 8015T 78

Performance is a wash — same chip tier.

Camera
iPhone 15 Plus 6215T 79

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

Battery
iPhone 15 Plus 6815T 90

5,500mAh vs 4,383mAh — the 15T lasts longer between charges.

Software longevity
iPhone 15 Plus 6115T 61

Both phones' support windows end around the same time.

Value
iPhone 15 Plus 6715T 70

Pound for pound, these two are equally good deals.

Full spec table
SpeciPhone 15 Plus15T
Price (street)$403$500
Display6.7-inch Super Retina XDR OLED, 60Hz, up to 2000 nits peak6.83-inch AMOLED, 2772x1280, 144Hz
ChipsetApple A16 BionicMediaTek Dimensity 8400-Ultra
RAM6GB12GB
Storage128GB/256GB/512GB256GB/512GB
Battery4,383 mAh5,500 mAh
Charging20W+ wired (50% in ~30 min), MagSafe 15W wireless, Qi 7.5W67W wired
Rear cameras48MP main, 12MP ultra-wide50MP main, 50MP telephoto 2x, 12MP ultra-wide
Dimensions160.9 × 77.8 × 7.8 mm163.2 × 78.0 × 7.5 mm
Weight201 g194 g
Water resistanceIP68IP68
Supported untilSep 2030Sep 2030

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