PhoneLifespan

Redmi 13 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 Redmi 13 5G runs out in Jul 2028 ($5.64/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Redmi 13 5G 68 · 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 Redmi 13 5G $140
Buy with care$5.64/mo
2024◆ Buy-by Jul 20262028
Xiaomi Redmi 15 5G $180
Safe to buy$4.80/mo
2025◆ Buy-by Aug 20272029

Category by category

Display
Redmi 13 5G 70Redmi 15 5G 70

Both displays are effectively the same class.

Performance
Redmi 13 5G 42Redmi 15 5G 46

The Redmi 15 5G's Qualcomm Snapdragon 6s Gen 3 is simply the faster chip.

Camera
Redmi 13 5G 55Redmi 15 5G 55

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

Battery
Redmi 13 5G 81Redmi 15 5G 100

7,000mAh vs 5,030mAh — the Redmi 15 5G lasts longer between charges.

Software longevity
Redmi 13 5G 30Redmi 15 5G 45

The Redmi 15 5G is supported until Aug 2029 — 13 months longer than the Redmi 13 5G.

Value
Redmi 13 5G 68Redmi 15 5G 75

Overall value goes to the Redmi 15 5G at $4.80 per month of safe use.

Full spec table
SpecRedmi 13 5GRedmi 15 5G
Price (street)$140$180
Display6.79-inch IPS LCD, FHD+, 120Hz, 550 nits peak6.9-inch IPS LCD, FHD+, 144Hz, 850 nits peak
ChipsetQualcomm Snapdragon 4 Gen 2 AEQualcomm Snapdragon 6s Gen 3
RAM6GB/8GB4GB/6GB/8GB
Storage128GB/256GB128GB/256GB
Battery5,030 mAh7,000 mAh
Charging33W wired33W wired, 18W reverse wired
Rear cameras108MP main, 2MP depth50MP main, 2MP depth
Dimensions168.6 × 76.3 × 8.3 mm169.5 × 80.5 × 8.4 mm
Weight205 g217 g
Water resistanceIP54IP64
Supported untilJul 2028Aug 2029

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