PhoneLifespan

iPhone 15 Pro Max vs ROG Phone 9

vs

Winner

Apple iPhone 15 Pro Max

The iPhone 15 Pro Max wins this one, taking display and software longevity decisively. Against the ROG Phone 9 it's also the sounder buy at $14.81 per month of safe use.

Value Score: iPhone 15 Pro Max 63 · ROG Phone 9 58 — 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 Pro Max $760
Safe to buy$14.81/mo
2023◆ Buy-by Sep 20282030
Asus ROG Phone 9 $999
Safe to buy$24.23/mo
2024◆ Buy-by Nov 20272029

Category by category

Display
iPhone 15 Pro Max 80ROG Phone 9 60

The iPhone 15 Pro Max's screen is the better one — 6.7-inch super retina xdr oled, 120hz promotion, always-on, dynamic island, up to 2000 nits peak.

Performance
iPhone 15 Pro Max 88ROG Phone 9 98

The ROG Phone 9's Qualcomm Snapdragon 8 Elite is simply the faster chip.

Camera
iPhone 15 Pro Max 74ROG Phone 9 67

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

Battery
iPhone 15 Pro Max 68ROG Phone 9 96

5,800mAh vs 4,422mAh — the ROG Phone 9 lasts longer between charges.

Software longevity
iPhone 15 Pro Max 61ROG Phone 9 49

The iPhone 15 Pro Max is supported until Sep 2030 — 10 months longer than the ROG Phone 9.

Value
iPhone 15 Pro Max 63ROG Phone 9 58

Overall value goes to the iPhone 15 Pro Max at $14.81 per month of safe use.

Full spec table
SpeciPhone 15 Pro MaxROG Phone 9
Price (street)$760$999
Display6.7-inch Super Retina XDR OLED, 120Hz ProMotion, Always-On, Dynamic Island, up to 2000 nits peak6.78-inch LTPO AMOLED, 1080x2400, 185Hz
ChipsetApple A17 ProQualcomm Snapdragon 8 Elite
RAM8GB12GB/16GB
Storage256GB/512GB/1TB256GB/512GB
Battery4,422 mAh5,800 mAh
ChargingWired ~50% in 30 min with 20W+; MagSafe 15W wireless65W wired, 15W wireless
Rear cameras48MP main, 12MP ultra-wide, 12MP telephoto50MP main, 13MP ultra-wide, 5MP macro
Dimensions159.9 × 76.7 × 8.25 mm163.8 × 76.8 × 8.9 mm
Weight221 g227 g
Water resistanceIP68IP68
Supported untilSep 2030Nov 2029
iPhone 15 Pro Max full verdict →ROG Phone 9 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.