PhoneLifespan

ROG Phone 8 Pro Edition vs 15 Pro

vs

Winner

Xiaomi 15 Pro

Lifespan decides this one: the 15 Pro is supported until Oct 2030 at $12.41 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 · 15 Pro 74 — 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
Xiaomi 15 Pro $650
Safe to buy$12.41/mo
2024◆ Buy-by Oct 20282030

Category by category

Display
ROG Phone 8 Pro Edition 8015 Pro 90

The 15 Pro's screen is the better one — 6.73-inch ltpo amoled, 3200 x 1440, 120hz.

Performance
ROG Phone 8 Pro Edition 9215 Pro 98

The 15 Pro's Qualcomm Snapdragon 8 Elite is simply the faster chip.

Camera
ROG Phone 8 Pro Edition 7915 Pro 79

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

Battery
ROG Phone 8 Pro Edition 9015 Pro 100

6,100mAh vs 5,500mAh — the 15 Pro lasts longer between charges.

Software longevity
ROG Phone 8 Pro Edition 2515 Pro 62

The 15 Pro is supported until Oct 2030 — 32 months longer than the ROG Phone 8 Pro Edition.

Value
ROG Phone 8 Pro Edition 5315 Pro 74

Overall value goes to the 15 Pro at $12.41 per month of safe use.

Full spec table
SpecROG Phone 8 Pro Edition15 Pro
Price (street)$1200$650
Display6.78-inch LTPO AMOLED, FHD+, 165Hz, Gorilla Glass Victus 26.73-inch LTPO AMOLED, 3200 x 1440, 120Hz
ChipsetQualcomm Snapdragon 8 Gen 3 (4nm)Qualcomm Snapdragon 8 Elite
RAM24GB12GB/16GB
Storage1TB256GB/512GB/1TB
Battery5,500 mAh6,100 mAh
Charging65W wired, 15W wireless90W wired, 50W wireless
Rear cameras50MP main, 32MP telephoto, 13MP ultra-wide50MP main, 50MP ultra-wide, 50MP telephoto 5x
Dimensions163.8 × 76.8 × 8.9 mm161.3 × 74.6 × 8.4 mm
Weight225 g213 g
Water resistanceIP68IP68
Supported untilMar 2028Oct 2030
ROG Phone 8 Pro Edition full verdict →15 Pro 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.