Poco C71 4G vs Redmi 15 4G
Winner
Xiaomi Redmi 15 4G
Lifespan decides this one: the Redmi 15 4G is supported until Aug 2029 at $3.32 per month of safe use, while the Poco C71 4G runs out in Apr 2029 ($2.32/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.
Value Score: Poco C71 4G 69 · Redmi 15 4G 75 — methodology
Who should pick which
Beyond the scores — our take on each phone and the buyer it actually suits.
A rock-bottom-priced entry phone with a surprisingly large 120Hz screen and a 32MP camera, with estimated support to 2029.
Pick it if
- ✓ First smartphone
- ✓ Tight budgets
Skip it if
- ✗ You need 5G
- ✗ Fast-charge seekers
A 7000mAh budget giant whose security cover runs only to August 2029, so buy it for battery life rather than longevity.
Pick it if
- ✓ Battery-life obsessives
- ✓ Big-screen media and reading
- ✓ Tight budgets
Skip it if
- ✗ You need 5G
- ✗ You want a light phone
The lifespan decider
When specs are close, support length decides it — this is what each phone costs per month of safe use.
Category by category
Both displays are effectively the same class.
The Poco C71 4G's Unisoc T7250 (12nm) is simply the faster chip.
The Redmi 15 4G has the stronger camera system — same lens count, higher-grade sensors.
7,000mAh vs 5,200mAh — the Redmi 15 4G lasts longer between charges.
The Redmi 15 4G is supported until Aug 2029 — 4 months longer than the Poco C71 4G.
Overall value goes to the Redmi 15 4G at $3.32 per month of safe use.
Frequently asked
Does the Poco C71 support 5G?
No. The Poco C71 is a 4G-only device powered by the Unisoc T7250.
What is the Poco C71's display like?
It has a large 6.88-inch HD+ IPS LCD with a smooth 120Hz refresh rate.
Is the Redmi 15 4G still supported?
Yes. It launched on 1 August 2025 with Android 15 and HyperOS 2, and Xiaomi's published policy covers security patches through August 2029. It sits comfortably inside its support window in 2026.
How long will the Redmi 15 4G get updates?
Xiaomi commits to two major Android upgrades, taking it as far as Android 17, plus four years of security patches that lapse around August 2029. That is about two years shorter than Samsung offers at a similar price.
Full spec table
| Spec | Poco C71 4G | Redmi 15 4G |
|---|---|---|
| Price (street) | $75 | $120 |
| Display | 6.88-inch IPS LCD, HD+, 120Hz | 6.9-inch IPS LCD, FHD+ (1080 x 2340), 144Hz |
| Chipset | Unisoc T7250 (12nm) | Qualcomm Snapdragon 685 (6nm) |
| RAM | 4GB/6GB | 4GB/6GB/8GB |
| Storage | 64GB/128GB | 128GB/256GB |
| Battery | 5,200 mAh | 7,000 mAh |
| Charging | 15W wired | 33W wired |
| Rear cameras | 32MP main | 50MP main, 2MP depth |
| Dimensions | 171.79 × 77.8 × 8.26 mm | 171.1 × 82.1 × 8.6 mm |
| Weight | 193 g | 224 g |
| Water resistance | IP52 | IP64 |
| Supported until | Apr 2029 | Aug 2029 |
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Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.