PhoneLifespan

X100 Pro vs 15 Pro

vs

Winner

Xiaomi 15 Pro

Lifespan decides this one: the 15 Pro is supported until Oct 2030 at $12.37 per month of safe use, while the X100 Pro runs out in Nov 2028 ($26.62/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: X100 Pro 62 · 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.

Vivo X100 Pro $780
Buy with care$26.62/mo
2023◆ Buy-by Nov 20262028
Xiaomi 15 Pro $650
Safe to buy$12.37/mo
2024◆ Buy-by Oct 20282030

Category by category

Display
X100 Pro 9015 Pro 90

Both displays are effectively the same class.

Performance
X100 Pro 9315 Pro 98

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

Camera
X100 Pro 7915 Pro 79

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

Battery
X100 Pro 8815 Pro 100

6,100mAh vs 5,400mAh — the 15 Pro lasts longer between charges.

Software longevity
X100 Pro 3515 Pro 63

The 15 Pro is supported until Oct 2030 — 23 months longer than the X100 Pro.

Value
X100 Pro 6215 Pro 74

Overall value goes to the 15 Pro at $12.37 per month of safe use.

Full spec table
SpecX100 Pro15 Pro
Price (street)$780$650
Display6.78-inch LTPO AMOLED, 2800x1260, 120Hz, up to 3000 nits peak6.73-inch LTPO AMOLED, 3200 x 1440, 120Hz
ChipsetMediaTek Dimensity 9300Qualcomm Snapdragon 8 Elite
RAM12GB/16GB12GB/16GB
Storage256GB/512GB256GB/512GB/1TB
Battery5,400 mAh6,100 mAh
Charging100W wired, 50W wireless90W wired, 50W wireless
Rear cameras50MP main, 50MP ultra-wide, 50MP telephoto 4.3x periscope50MP main, 50MP ultra-wide, 50MP telephoto 5x
Dimensions164.1 × 75.3 × 9.0 mm161.3 × 74.6 × 8.4 mm
Weight221 g213 g
Water resistanceIP68IP68
Supported untilNov 2028Oct 2030
X100 Pro 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.