PhoneLifespan

ROG Phone 9 FE 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 9 FE runs out in Feb 2029 ($26.89/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: ROG Phone 9 FE 58 · 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 9 FE $850
Buy with care$26.89/mo
2025◆ Buy-by Feb 20272029
Xiaomi 15 Pro $650
Safe to buy$12.41/mo
2024◆ Buy-by Oct 20282030

Category by category

Display
ROG Phone 9 FE 8015 Pro 90

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

Performance
ROG Phone 9 FE 9215 Pro 98

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

Camera
ROG Phone 9 FE 6715 Pro 79

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

Battery
ROG Phone 9 FE 9015 Pro 100

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

Software longevity
ROG Phone 9 FE 3815 Pro 62

The 15 Pro is supported until Oct 2030 — 21 months longer than the ROG Phone 9 FE.

Value
ROG Phone 9 FE 5815 Pro 74

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

Full spec table
SpecROG Phone 9 FE15 Pro
Price (street)$850$650
Display6.78-inch AMOLED LTPO, FHD+, 165Hz, Gorilla Glass Victus 26.73-inch LTPO AMOLED, 3200 x 1440, 120Hz
ChipsetQualcomm Snapdragon 8 Gen 3 (4nm)Qualcomm Snapdragon 8 Elite
RAM12GB/16GB12GB/16GB
Storage256GB256GB/512GB/1TB
Battery5,500 mAh6,100 mAh
Charging65W wired, wireless charging90W wired, 50W wireless
Rear cameras50MP main, 13MP ultra-wide, 5MP macro50MP 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 untilFeb 2029Oct 2030

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