PhoneLifespan

Poco C71 4G vs Redmi K80

vs

Winner

Xiaomi Redmi K80

Lifespan decides this one: the Redmi K80 is supported until Nov 2029 at $8.59 per month of safe use, while the Poco C71 4G runs out in Apr 2029 ($2.23/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Poco C71 4G 69 · Redmi K80 79 methodology

The lifespan decider

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

Xiaomi Poco C71 4G $75
Buy with care$2.23/mo
2025◆ Buy-by Apr 20272029
Xiaomi Redmi K80 $355
Safe to buy$8.59/mo
2024◆ Buy-by Nov 20272029

Category by category

Display
Poco C71 4G 70Redmi K80 80

The Redmi K80's screen is the better one — 6.67-inch amoled, 2k, 120hz, 3200 nits peak.

Performance
Poco C71 4G 55Redmi K80 92

The Redmi K80's Qualcomm Snapdragon 8 Gen 3 (4nm) is simply the faster chip.

Camera
Poco C71 4G 40Redmi K80 67

The Redmi K80 has the stronger camera system (2 real rear lenses vs 1).

Battery
Poco C71 4G 84Redmi K80 100

6,550mAh vs 5,200mAh — the Redmi K80 lasts longer between charges.

Software longevity
Poco C71 4G 40Redmi K80 49

The Redmi K80 is supported until Nov 2029 — 8 months longer than the Poco C71 4G.

Value
Poco C71 4G 69Redmi K80 79

Overall value goes to the Redmi K80 at $8.59 per month of safe use.

Full spec table
SpecPoco C71 4GRedmi K80
Price (street)$75$355
Display6.88-inch IPS LCD, HD+, 120Hz6.67-inch AMOLED, 2K, 120Hz, 3200 nits peak
ChipsetUnisoc T7250 (12nm)Qualcomm Snapdragon 8 Gen 3 (4nm)
RAM4GB/6GB12GB/16GB
Storage64GB/128GB256GB/512GB/1TB
Battery5,200 mAh6,550 mAh
Charging15W wired90W wired, 30W wireless
Rear cameras32MP main50MP main, 8MP ultra-wide, 2MP macro
Dimensions171.79 × 77.8 × 8.26 mm160.3 × 75.0 × 8.0 mm
Weight193 g206 g
Water resistanceIP52IP68
Supported untilApr 2029Nov 2029

Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.