PhoneLifespan

X7b 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 X7b runs out in Dec 2026 ($27.56/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: X7b 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.

Honor X7b $150
Avoid buying$27.56/mo
2023◆ Buy-by Dec 20242026
Xiaomi Poco C71 4G $75
Buy with care$2.23/mo
2025◆ Buy-by Apr 20272029

Category by category

Display
X7b 50Poco C71 4G 70

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

Performance
X7b 44Poco C71 4G 55

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

Camera
X7b 55Poco C71 4G 40

The X7b has the stronger camera system — same lens count, higher-grade sensors.

Battery
X7b 100Poco C71 4G 84

6,000mAh vs 5,200mAh — the X7b lasts longer between charges.

Software longevity
X7b 6Poco C71 4G 40

The Poco C71 4G is supported until Apr 2029 — 28 months longer than the X7b.

Value
X7b 40Poco C71 4G 69

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

Full spec table
SpecX7bPoco C71 4G
Price (street)$150$75
Display6.8-inch IPS LCD, 90Hz, 850 nits peak6.88-inch IPS LCD, HD+, 120Hz
ChipsetSnapdragon 680 4GUnisoc T7250 (12nm)
RAM6GB/8GB/12GB4GB/6GB
Storage128GB/256GB64GB/128GB
Battery6,000 mAh5,200 mAh
Charging35W wired15W wired
Rear cameras108MP main, 5MP ultra-wide32MP main
Dimensions166.7 x 76.5 x 8.2 mm171.79 × 77.8 × 8.26 mm
Weight199 g193 g
Water resistanceNoneIP52
Supported untilDec 2026Apr 2029
X7b 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.