PhoneLifespan

Poco X7 5G vs Redmi 15 5G

vs

Winner

Xiaomi Redmi 15 5G

Lifespan decides this one: the Redmi 15 5G is supported until Aug 2029 at $4.80 per month of safe use, while the Poco X7 5G runs out in Jan 2029 ($7.48/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Poco X7 5G 75 · Redmi 15 5G 75 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 X7 5G $230
Buy with care$7.48/mo
2025◆ Buy-by Jan 20272029
Xiaomi Redmi 15 5G $180
Safe to buy$4.80/mo
2025◆ Buy-by Aug 20272029

Category by category

Display
Poco X7 5G 80Redmi 15 5G 70

The Poco X7 5G's screen is the better one — 6.67-inch amoled, 1.5k (446 ppi), 120hz, 3000 nits peak, gorilla glass victus 2.

Performance
Poco X7 5G 58Redmi 15 5G 46

The Poco X7 5G's MediaTek Dimensity 7300 Ultra (4nm) is simply the faster chip.

Camera
Poco X7 5G 67Redmi 15 5G 55

The Poco X7 5G has the stronger camera system (2 real rear lenses vs 1).

Battery
Poco X7 5G 90Redmi 15 5G 100

7,000mAh vs 5,500mAh — the Redmi 15 5G lasts longer between charges.

Software longevity
Poco X7 5G 37Redmi 15 5G 45

The Redmi 15 5G is supported until Aug 2029 — 7 months longer than the Poco X7 5G.

Value
Poco X7 5G 75Redmi 15 5G 75

Pound for pound, these two are equally good deals.

Full spec table
SpecPoco X7 5GRedmi 15 5G
Price (street)$230$180
Display6.67-inch AMOLED, 1.5K (446 ppi), 120Hz, 3000 nits peak, Gorilla Glass Victus 26.9-inch IPS LCD, FHD+, 144Hz, 850 nits peak
ChipsetMediaTek Dimensity 7300 Ultra (4nm)Qualcomm Snapdragon 6s Gen 3
RAM8GB/12GB4GB/6GB/8GB
Storage128GB/256GB/512GB128GB/256GB
Battery5,500 mAh7,000 mAh
Charging45W wired33W wired, 18W reverse wired
Rear cameras50MP main, 8MP ultra-wide, 2MP macro50MP main, 2MP depth
Dimensions162.3 × 74.4 × 8.4 mm169.5 × 80.5 × 8.4 mm
Weight190 g217 g
Water resistanceIP68 (also IP69)IP64
Supported untilJan 2029Aug 2029

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