PhoneLifespan

15 Ultra vs POCO F6

vs

Winner

Xiaomi 15 Ultra

Lifespan decides this one: the 15 Ultra is supported until Mar 2030 at $30.40 per month of safe use, while the POCO F6 runs out in May 2028 ($14.27/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 15 Ultra 65 · POCO F6 69 — 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 Ultra $1350
Safe to buy$30.40/mo
2025◆ Buy-by Mar 20282030
Xiaomi POCO F6 $330
Buy with care$14.27/mo
2024◆ Buy-by May 20262028

Category by category

Display
15 Ultra 100POCO F6 70

The 15 Ultra's screen is the better one — 6.73-inch 2k (1440×3200) ltpo amoled, 1–120hz, up to 3200 nits peak.

Performance
15 Ultra 98POCO F6 82

The 15 Ultra's Qualcomm Snapdragon 8 Elite (3nm) is simply the faster chip.

Camera
15 Ultra 96POCO F6 67

The 15 Ultra has the stronger camera system (4 real rear lenses vs 2).

Battery
15 Ultra 88POCO F6 80

5,410mAh vs 5,000mAh — the 15 Ultra lasts longer between charges.

Software longevity
15 Ultra 53POCO F6 28

The 15 Ultra is supported until Mar 2030 — 21 months longer than the POCO F6.

Value
15 Ultra 65POCO F6 69

Overall value goes to the POCO F6 at $14.27 per month of safe use.

Full spec table
Spec15 UltraPOCO F6
Price (street)$1350$330
Display6.73-inch 2K (1440×3200) LTPO AMOLED, 1–120Hz, up to 3200 nits peak6.67-inch CrystalRes Flow AMOLED, 1.5K, up to 120Hz, 480Hz touch sampling
ChipsetQualcomm Snapdragon 8 Elite (3nm)Snapdragon 8s Gen 3
RAM16GB8GB/12GB
Storage512GB/1TB256GB/512GB
Battery5,410 mAh5,000 mAh
Charging90W wired, 80W wireless90W wired
Rear cameras50MP main, 50MP ultra-wide, 50MP telephoto (70mm floating), 200MP periscope telephoto50MP main (Sony IMX882, OIS, f/1.59), 8MP ultra-wide
Dimensions161.3 × 75.3 × 9.35 mm160.5 × 74.5 × 7.8 mm
Weight226 g179 g
Water resistanceIP68IP64
Supported untilMar 2030May 2028
15 Ultra full verdict →POCO F6 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.