PhoneLifespan

C31 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 C31 is already past its support window. On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: C31 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.

Nokia C31 $90
Avoid buyingsupport ended
2022◆ Buy-by Sep 20222024
Xiaomi Poco C71 4G $75
Buy with care$2.23/mo
2025◆ Buy-by Apr 20272029

Category by category

Display
C31 50Poco C71 4G 70

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

Performance
C31 15Poco C71 4G 55

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

Camera
C31 40Poco C71 4G 40

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

Battery
C31 81Poco C71 4G 84

Battery capacities are close enough not to decide this.

Software longevity
C31 0Poco C71 4G 40

The Poco C71 4G is supported until Apr 2029 — 55 months longer than the C31.

Value
C31 40Poco C71 4G 69

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

Full spec table
SpecC31Poco C71 4G
Price (street)$90$75
Display6.75-inch IPS LCD, 720 x 1600 (HD+)6.88-inch IPS LCD, HD+, 120Hz
ChipsetUnisoc SC9863AUnisoc T7250 (12nm)
RAM3GB/4GB4GB/6GB
Storage32GB/64GB/128GB64GB/128GB
Battery5,050 mAh5,200 mAh
Charging10W wired15W wired
Rear cameras13MP main, 2MP macro32MP main
Dimensions169.2 x 78 x 8.6 mm171.79 × 77.8 × 8.26 mm
Weight200 g193 g
Water resistanceSplash resistant (no IP rating)IP52
Supported untilSep 2024Apr 2029
C31 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.