PhoneLifespan

iPhone 15 Plus vs iPhone 17

vs

It depends

Too close to call outright

These two are within 2 points 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 15 Plus 66 · iPhone 17 68 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$7.88/mo
2023◆ Buy-by Sep 20282030
Apple iPhone 17 $799
Safe to buy$10.65/mo
2025◆ Buy-by Sep 20302032

Category by category

Display
iPhone 15 Plus 50iPhone 17 90

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 15 Plus 80iPhone 17 96

The iPhone 17's Apple A19 is simply the faster chip.

Camera
iPhone 15 Plus 62iPhone 17 62

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

Battery
iPhone 15 Plus 68iPhone 17 54

4,383mAh vs 3,692mAh — the iPhone 15 Plus lasts longer between charges.

Software longevity
iPhone 15 Plus 61iPhone 17 89

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

Value
iPhone 15 Plus 66iPhone 17 68

Pound for pound, these two are equally good deals.

Full spec table
SpeciPhone 15 PlusiPhone 17
Price (street)$403$799
Display6.7-inch Super Retina XDR OLED, 60Hz, up to 2000 nits peak6.3-inch Super Retina XDR OLED, ProMotion 1–120Hz, up to 3000 nits peak
ChipsetApple A16 BionicApple A19
RAM6GB8GB
Storage128GB/256GB/512GB256GB/512GB
Battery4,383 mAh3,692 mAh
Charging20W+ wired (50% in ~30 min), MagSafe 15W wireless, Qi 7.5WWired fast charge — 50% in 20 min with a 40W+ adapter; MagSafe wireless up to 25W
Rear cameras48MP main, 12MP ultra-wide48MP main, 48MP ultra-wide
Dimensions160.9 × 77.8 × 7.8 mm149.6 × 71.5 × 7.95 mm
Weight201 g177 g
Water resistanceIP68IP68
Supported untilSep 2030Sep 2032

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