PhoneLifespan

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 $4.81 per month of safe use, while the 13+ 5G runs out in Sep 2028 ($8.07/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 13+ 5G 70 · 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.

Realme 13+ 5G $215
Buy with care$8.07/mo
2024◆ Buy-by Sep 20262028
Xiaomi Redmi 15 5G $180
Safe to buy$4.81/mo
2025◆ Buy-by Aug 20272029

Category by category

Display
13+ 5G 70Redmi 15 5G 70

Both displays are effectively the same class.

Performance
13+ 5G 58Redmi 15 5G 46

The 13+ 5G's MediaTek Dimensity 7300 Energy is simply the faster chip.

Camera
13+ 5G 67Redmi 15 5G 55

The 13+ 5G has the stronger camera system (2 real rear lenses vs 1).

Battery
13+ 5G 80Redmi 15 5G 100

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

Software longevity
13+ 5G 32Redmi 15 5G 45

The Redmi 15 5G is supported until Aug 2029 — 11 months longer than the 13+ 5G.

Value
13+ 5G 70Redmi 15 5G 75

Overall value goes to the Redmi 15 5G at $4.81 per month of safe use.

Full spec table
Spec13+ 5GRedmi 15 5G
Price (street)$215$180
Display6.67-inch AMOLED, FHD+, 120Hz, HDR10+6.9-inch IPS LCD, FHD+, 144Hz, 850 nits peak
ChipsetMediaTek Dimensity 7300 EnergyQualcomm Snapdragon 6s Gen 3
RAM8GB/12GB4GB/6GB/8GB
Storage128GB/256GB/512GB128GB/256GB
Battery5,000 mAh7,000 mAh
Charging80W wired33W wired, 18W reverse wired
Rear cameras50MP main, 8MP ultra-wide50MP main, 2MP depth
Dimensions161.7 x 74.7 x 7.6 mm169.5 × 80.5 × 8.4 mm
Weight185 g217 g
Water resistanceIP65IP64
Supported untilSep 2028Aug 2029
13+ 5G full verdict →Redmi 15 5G 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.