PhoneLifespan

ROG Phone 8 Pro Edition vs ROG Phone 9

vs

Winner

Asus ROG Phone 9

Lifespan decides this one: the ROG Phone 9 is supported until Nov 2029 at $24.32 per month of safe use, while the ROG Phone 8 Pro Edition runs out in Mar 2028 ($57.77/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: ROG Phone 8 Pro Edition 53 · 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.

Asus ROG Phone 8 Pro Edition $1200
Buy with care$57.77/mo
2024◆ Buy-by Mar 20262028
Asus ROG Phone 9 $999
Safe to buy$24.32/mo
2024◆ Buy-by Nov 20272029

Category by category

Display
ROG Phone 8 Pro Edition 80ROG Phone 9 60

The ROG Phone 8 Pro Edition's screen is the better one — 6.78-inch ltpo amoled, fhd+, 165hz, gorilla glass victus 2.

Performance
ROG Phone 8 Pro Edition 92ROG Phone 9 98

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

Camera
ROG Phone 8 Pro Edition 79ROG Phone 9 67

The ROG Phone 8 Pro Edition has the stronger camera system (3 real rear lenses vs 2).

Battery
ROG Phone 8 Pro Edition 90ROG Phone 9 96

5,800mAh vs 5,500mAh — the ROG Phone 9 lasts longer between charges.

Software longevity
ROG Phone 8 Pro Edition 25ROG Phone 9 49

The ROG Phone 9 is supported until Nov 2029 — 20 months longer than the ROG Phone 8 Pro Edition.

Value
ROG Phone 8 Pro Edition 53ROG Phone 9 58

Overall value goes to the ROG Phone 9 at $24.32 per month of safe use.

Full spec table
SpecROG Phone 8 Pro EditionROG Phone 9
Price (street)$1200$999
Display6.78-inch LTPO AMOLED, FHD+, 165Hz, Gorilla Glass Victus 26.78-inch LTPO AMOLED, 1080x2400, 185Hz
ChipsetQualcomm Snapdragon 8 Gen 3 (4nm)Qualcomm Snapdragon 8 Elite
RAM24GB12GB/16GB
Storage1TB256GB/512GB
Battery5,500 mAh5,800 mAh
Charging65W wired, 15W wireless65W wired, 15W wireless
Rear cameras50MP main, 32MP telephoto, 13MP ultra-wide50MP main, 13MP ultra-wide, 5MP macro
Dimensions163.8 × 76.8 × 8.9 mm163.8 × 76.8 × 8.9 mm
Weight225 g227 g
Water resistanceIP68IP68
Supported untilMar 2028Nov 2029
ROG Phone 8 Pro Edition 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.