PhoneLifespan

S25 Ultra vs Poco C71 4G

vs

Winner

Xiaomi Poco C71 4G

Lifespan decides this one: the Poco C71 4G is supported until Apr 2029 at $2.23 per month of safe use, while the S25 Ultra runs out in Nov 2026 ($36.94/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: S25 Ultra 40 · Poco C71 4G 69 — methodology

The lifespan decider

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

itel S25 Ultra $175
Avoid buying$36.94/mo
2024◆ Buy-by Nov 20242026
Xiaomi Poco C71 4G $75
Buy with care$2.23/mo
2025◆ Buy-by Apr 20272029

Category by category

Display
S25 Ultra 70Poco C71 4G 70

Both displays are effectively the same class.

Performance
S25 Ultra 55Poco C71 4G 55

Performance is a wash — same chip tier.

Camera
S25 Ultra 55Poco C71 4G 40

The S25 Ultra has the stronger camera system — same lens count, higher-grade sensors.

Battery
S25 Ultra 80Poco C71 4G 84

5,200mAh vs 5,000mAh — the Poco C71 4G lasts longer between charges.

Software longevity
S25 Ultra 6Poco C71 4G 40

The Poco C71 4G is supported until Apr 2029 — 29 months longer than the S25 Ultra.

Value
S25 Ultra 40Poco C71 4G 69

Overall value goes to the Poco C71 4G at $2.23 per month of safe use.

Full spec table
SpecS25 UltraPoco C71 4G
Price (street)$175$75
Display6.78-inch AMOLED, FHD+, 120Hz, up to 1400 nits peak, Gorilla Glass 7i6.88-inch IPS LCD, HD+, 120Hz
ChipsetUnisoc T620 (12nm)Unisoc T7250 (12nm)
RAM8GB4GB/6GB
Storage128GB/256GB/512GB64GB/128GB
Battery5,000 mAh5,200 mAh
Charging18W wired15W wired
Rear cameras50MP main, 2MP macro32MP main
Dimensions163 × 75 × 6.9 mm171.79 × 77.8 × 8.26 mm
Weight163 g193 g
Water resistanceIP64IP52
Supported untilNov 2026Apr 2029
S25 Ultra full verdict →Poco C71 4G 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.