PhoneLifespan

iPhone 15 Plus vs Redmi Turbo 4

vs

Winner

Apple iPhone 15 Plus

Lifespan decides this one: the iPhone 15 Plus is supported until Sep 2030 at $7.88 per month of safe use, while the Redmi Turbo 4 runs out in Jan 2029 ($7.04/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: iPhone 15 Plus 66 · Redmi Turbo 4 76 — 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
Xiaomi Redmi Turbo 4 $215
Buy with care$7.04/mo
2025◆ Buy-by Jan 20272029

Category by category

Display
iPhone 15 Plus 50Redmi Turbo 4 80

The Redmi Turbo 4's screen is the better one — 6.67-inch ltps oled, 1.5k, 120hz, 3200 nits peak.

Performance
iPhone 15 Plus 80Redmi Turbo 4 78

Performance is a wash — same chip tier.

Camera
iPhone 15 Plus 62Redmi Turbo 4 67

The Redmi Turbo 4 has the stronger camera system — same lens count, higher-grade sensors.

Battery
iPhone 15 Plus 68Redmi Turbo 4 100

6,550mAh vs 4,383mAh — the Redmi Turbo 4 lasts longer between charges.

Software longevity
iPhone 15 Plus 61Redmi Turbo 4 36

The iPhone 15 Plus is supported until Sep 2030 — 21 months longer than the Redmi Turbo 4.

Value
iPhone 15 Plus 66Redmi Turbo 4 76

Overall value goes to the Redmi Turbo 4 at $7.04 per month of safe use.

Full spec table
SpeciPhone 15 PlusRedmi Turbo 4
Price (street)$403$215
Display6.7-inch Super Retina XDR OLED, 60Hz, up to 2000 nits peak6.67-inch LTPS OLED, 1.5K, 120Hz, 3200 nits peak
ChipsetApple A16 BionicMediaTek Dimensity 8400-Ultra (4nm)
RAM6GB12GB/16GB
Storage128GB/256GB/512GB256GB/512GB
Battery4,383 mAh6,550 mAh
Charging20W+ wired (50% in ~30 min), MagSafe 15W wireless, Qi 7.5W90W wired
Rear cameras48MP main, 12MP ultra-wide50MP main, 8MP ultra-wide
Dimensions160.9 × 77.8 × 7.8 mm161 × 75.2 × 8.1 mm
Weight201 g204 g
Water resistanceIP68IP68
Supported untilSep 2030Jan 2029
iPhone 15 Plus full verdict →Redmi Turbo 4 full verdict →Longevity master board →

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