PhoneLifespan

ROG Phone 9 vs 13 Ultra

vs

Winner

Asus ROG Phone 9

Lifespan decides this one: the ROG Phone 9 is supported until Nov 2029 at $24.35 per month of safe use, while the 13 Ultra runs out in Apr 2028 ($29.59/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: ROG Phone 9 58 · 13 Ultra 62 — 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 $999
Safe to buy$24.35/mo
2024◆ Buy-by Nov 20272029
Xiaomi 13 Ultra $650
Buy with care$29.59/mo
2023◆ Buy-by Apr 20262028

Category by category

Display
ROG Phone 9 6013 Ultra 90

The 13 Ultra's screen is the better one — 6.73-inch ltpo amoled, 3200 x 1440, 120hz.

Performance
ROG Phone 9 9813 Ultra 85

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

Camera
ROG Phone 9 6713 Ultra 91

The 13 Ultra has the stronger camera system (4 real rear lenses vs 2).

Battery
ROG Phone 9 9613 Ultra 80

5,800mAh vs 5,000mAh — the ROG Phone 9 lasts longer between charges.

Software longevity
ROG Phone 9 4913 Ultra 26

The ROG Phone 9 is supported until Nov 2029 — 19 months longer than the 13 Ultra.

Value
ROG Phone 9 5813 Ultra 62

Overall value goes to the 13 Ultra at $29.59 per month of safe use.

Full spec table
SpecROG Phone 913 Ultra
Price (street)$999$650
Display6.78-inch LTPO AMOLED, 1080x2400, 185Hz6.73-inch LTPO AMOLED, 3200 x 1440, 120Hz
ChipsetQualcomm Snapdragon 8 EliteQualcomm Snapdragon 8 Gen 2
RAM12GB/16GB12GB/16GB
Storage256GB/512GB256GB/512GB/1TB
Battery5,800 mAh5,000 mAh
Charging65W wired, 15W wireless90W wired, 50W wireless
Rear cameras50MP main, 13MP ultra-wide, 5MP macro50MP main, 50MP ultra-wide, 50MP telephoto 3.2x, 50MP periscope telephoto 5x
Dimensions163.8 × 76.8 × 8.9 mm163.2 × 74.6 × 9.1 mm
Weight227 g227 g
Water resistanceIP68IP68
Supported untilNov 2029Apr 2028
ROG Phone 9 full verdict →13 Ultra 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.