PhoneLifespan

A18 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 A18 runs out in Oct 2026 ($26.48/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: A18 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.

Oppo A18 $95
Avoid buying$26.48/mo
2023◆ Buy-by Oct 20242026
Xiaomi Poco C71 4G $75
Buy with care$2.23/mo
2025◆ Buy-by Apr 20272029

Category by category

Display
A18 50Poco C71 4G 70

The Poco C71 4G's screen is the better one — 6.88-inch ips lcd, hd+, 120hz.

Performance
A18 40Poco C71 4G 55

The Poco C71 4G's Unisoc T7250 (12nm) is simply the faster chip.

Camera
A18 25Poco C71 4G 40

The Poco C71 4G has the stronger camera system — same lens count, higher-grade sensors.

Battery
A18 80Poco C71 4G 84

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

Software longevity
A18 4Poco C71 4G 40

The Poco C71 4G is supported until Apr 2029 — 30 months longer than the A18.

Value
A18 40Poco C71 4G 69

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

Full spec table
SpecA18Poco C71 4G
Price (street)$95$75
Display6.56-inch IPS LCD, HD+, 90Hz, ~720 nits6.88-inch IPS LCD, HD+, 120Hz
ChipsetMediaTek Helio G85 (12nm)Unisoc T7250 (12nm)
RAM4GB4GB/6GB
Storage64GB/128GB64GB/128GB
Battery5,000 mAh5,200 mAh
Charging10W wired15W wired
Rear cameras8MP main, 2MP depth32MP main
Dimensions163.7 × 75 × 8.2 mm171.79 × 77.8 × 8.26 mm
Weight188 g193 g
Water resistanceIP54IP52
Supported untilOct 2026Apr 2029
A18 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.