X100 vs 15 Pro

Phone 1

Phone 2

Winner

Xiaomi 15 Pro

Lifespan decides this one: the 15 Pro is supported until Oct 2030 at $12.42 per month of safe use, while the X100 runs out in Nov 2028 ($21.31/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: X100 64 · 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 $620

Buy with care$21.31/mo

2023◆ Buy-by Nov 20262028

Xiaomi 15 Pro $650

Safe to buy$12.42/mo

2024◆ Buy-by Oct 20282030

Category by category

Display

X100 9015 Pro 90

Both displays are effectively the same class.

Performance

X100 9315 Pro 98

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

Camera

X100 7915 Pro 79

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

Battery

X100 8015 Pro 100

6,100mAh vs 5,000mAh — the 15 Pro lasts longer between charges.

Software longevity

X100 3515 Pro 62

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

Value

X100 6415 Pro 74

Overall value goes to the 15 Pro at $12.42 per month of safe use.

Full spec table

Spec	X100	15 Pro
Price (street)	$620	$650
Display	6.78-inch LTPO AMOLED, 2800x1260, 120Hz, up to 3000 nits peak	6.73-inch LTPO AMOLED, 3200 x 1440, 120Hz
Chipset	MediaTek Dimensity 9300	Qualcomm Snapdragon 8 Elite
RAM	12GB/16GB	12GB/16GB
Storage	256GB/512GB	256GB/512GB/1TB
Battery	5,000 mAh	6,100 mAh
Charging	120W wired	90W wired, 50W wireless
Rear cameras	50MP main, 50MP ultra-wide, 64MP telephoto 3x periscope	50MP main, 50MP ultra-wide, 50MP telephoto 5x
Dimensions	164.1 × 75.3 × 8.2 mm	161.3 × 74.6 × 8.4 mm
Weight	202 g	213 g
Water resistance	IP68	IP68
Supported until	Nov 2028	Oct 2030

X100 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.