PhoneLifespan

iPhone 15 vs Zenfone 11 Ultra

vs

Winner

Apple iPhone 15

Lifespan decides this one: the iPhone 15 is supported until Sep 2030 at $8.38 per month of safe use, while the Zenfone 11 Ultra runs out in Mar 2028 ($28.54/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: iPhone 15 62 · Zenfone 11 Ultra 61 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 $430
Safe to buy$8.38/mo
2023◆ Buy-by Sep 20282030
Asus Zenfone 11 Ultra $600
Buy with care$28.54/mo
2024◆ Buy-by Mar 20262028

Category by category

Display
iPhone 15 50Zenfone 11 Ultra 70

The Zenfone 11 Ultra's screen is the better one — 6.78-inch flexible e6 amoled, fhd+ (1080×2400), 144hz, 2500-nit peak, 107% dci-p3.

Performance
iPhone 15 80Zenfone 11 Ultra 92

The Zenfone 11 Ultra's Snapdragon 8 Gen 3 is simply the faster chip.

Camera
iPhone 15 62Zenfone 11 Ultra 79

The Zenfone 11 Ultra has the stronger camera system (3 real rear lenses vs 2).

Battery
iPhone 15 47Zenfone 11 Ultra 90

5,500mAh vs 3,349mAh — the Zenfone 11 Ultra lasts longer between charges.

Software longevity
iPhone 15 61Zenfone 11 Ultra 25

The iPhone 15 is supported until Sep 2030 — 30 months longer than the Zenfone 11 Ultra.

Value
iPhone 15 62Zenfone 11 Ultra 61

Pound for pound, these two are equally good deals.

Full spec table
SpeciPhone 15Zenfone 11 Ultra
Price (street)$430$600
Display6.1-inch Super Retina XDR OLED, 60Hz, Dynamic Island, up to 2000 nits peak6.78-inch flexible E6 AMOLED, FHD+ (1080×2400), 144Hz, 2500-nit peak, 107% DCI-P3
ChipsetApple A16 BionicSnapdragon 8 Gen 3
RAM6GB12GB/16GB
Storage128GB/256GB/512GB256GB/512GB
Battery3,349 mAh5,500 mAh
ChargingWired ~50% in 30 min with 20W+; MagSafe 15W wireless65W wired (HyperCharge), 15W Qi wireless
Rear cameras48MP main, 12MP ultra-wide50MP main (Sony IMX890 1/1.56-inch, gimbal OIS), 13MP ultra-wide (120-degree), 32MP telephoto 3x (OIS)
Dimensions147.6 × 71.6 × 7.80 mm163.8 × 76.8 × 8.9 mm
Weight171 g224 g
Water resistanceIP68IP68
Supported untilSep 2030Mar 2028

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