PhoneLifespan

15 Pro vs Civi 4 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 Civi 4 Pro runs out in Mar 2028 ($20.38/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 15 Pro 74 · Civi 4 Pro 65 methodology

The lifespan decider

When specs are close, support length decides it — this is what each phone costs per month of safe use.

Xiaomi 15 Pro $650
Safe to buy$12.41/mo
2024◆ Buy-by Oct 20282030
Xiaomi Civi 4 Pro $430
Buy with care$20.38/mo
2024◆ Buy-by Mar 20262028

Category by category

Display
15 Pro 90Civi 4 Pro 80

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

Performance
15 Pro 98Civi 4 Pro 82

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

Camera
15 Pro 79Civi 4 Pro 79

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

Battery
15 Pro 100Civi 4 Pro 74

6,100mAh vs 4,700mAh — the 15 Pro lasts longer between charges.

Software longevity
15 Pro 62Civi 4 Pro 25

The 15 Pro is supported until Oct 2030 — 31 months longer than the Civi 4 Pro.

Value
15 Pro 74Civi 4 Pro 65

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

Full spec table
Spec15 ProCivi 4 Pro
Price (street)$650$430
Display6.73-inch LTPO AMOLED, 3200 x 1440, 120Hz6.55-inch AMOLED, 1.5K, 120Hz, 3000 nits peak
ChipsetQualcomm Snapdragon 8 EliteQualcomm Snapdragon 8s Gen 3 (4nm)
RAM12GB/16GB12GB/16GB
Storage256GB/512GB/1TB256GB/512GB
Battery6,100 mAh4,700 mAh
Charging90W wired, 50W wireless67W wired
Rear cameras50MP main, 50MP ultra-wide, 50MP telephoto 5x50MP main, 50MP telephoto, 12MP ultra-wide
Dimensions161.3 × 74.6 × 8.4 mm157.2 × 72.8 × 7.5 mm
Weight213 g179 g
Water resistanceIP68IP54
Supported untilOct 2030Mar 2028

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