PhoneLifespan

ROG Phone 8 vs 14 Ultra

vs

It depends

Too close to call outright

These two are within 4 points overall, so it depends on you: keep phones for years → 14 Ultra (supported until Feb 2029); want maximum speed → ROG Phone 8 (Qualcomm Snapdragon 8 Gen 3).

Value Score: ROG Phone 8 60 · 14 Ultra 64 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 $850
Buy with care$27.42/mo
2024◆ Buy-by Jan 20272029
Xiaomi 14 Ultra $750
Buy with care$23.33/mo
2024◆ Buy-by Feb 20272029

Category by category

Display
ROG Phone 8 8014 Ultra 90

The 14 Ultra's screen is the better one — 6.73-inch ltpo amoled, 3200 x 1440, 120hz.

Performance
ROG Phone 8 9214 Ultra 92

Performance is a wash — same chip tier.

Camera
ROG Phone 8 7914 Ultra 91

The 14 Ultra has the stronger camera system (4 real rear lenses vs 3).

Battery
ROG Phone 8 9014 Ultra 80

5,500mAh vs 5,000mAh — the ROG Phone 8 lasts longer between charges.

Software longevity
ROG Phone 8 3714 Ultra 38

Both phones' support windows end around the same time.

Value
ROG Phone 8 6014 Ultra 64

Overall value goes to the 14 Ultra at $23.33 per month of safe use.

Full spec table
SpecROG Phone 814 Ultra
Price (street)$850$750
Display6.78-inch LTPO AMOLED, 1080x2400, 165Hz6.73-inch LTPO AMOLED, 3200 x 1440, 120Hz
ChipsetQualcomm Snapdragon 8 Gen 3Qualcomm Snapdragon 8 Gen 3
RAM12GB/16GB12GB/16GB
Storage256GB/512GB256GB/512GB/1TB
Battery5,500 mAh5,000 mAh
Charging65W wired, 15W wireless90W wired, 80W wireless
Rear cameras50MP main, 13MP ultra-wide, 32MP telephoto 3x50MP main, 50MP ultra-wide, 50MP telephoto 3.2x, 50MP periscope telephoto 5x
Dimensions163.8 × 76.8 × 8.9 mm161.4 × 75.3 × 9.2 mm
Weight225 g220 g
Water resistanceIP68IP68
Supported untilJan 2029Feb 2029

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