PhoneLifespan

Galaxy A36 5G vs Redmi 15 5G

vs

Winner

Xiaomi Redmi 15 5G

The Redmi 15 5G wins this one, taking battery decisively. Against the Galaxy A36 5G it's also the sounder buy at $4.80 per month of safe use.

Value Score: Galaxy A36 5G 66 · 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.

Samsung Galaxy A36 5G $350
Safe to buy$6.11/mo
2025◆ Buy-by Mar 20292031
Xiaomi Redmi 15 5G $180
Safe to buy$4.80/mo
2025◆ Buy-by Aug 20272029

Category by category

Display
Galaxy A36 5G 70Redmi 15 5G 70

Both displays are effectively the same class.

Performance
Galaxy A36 5G 48Redmi 15 5G 46

Performance is a wash — same chip tier.

Camera
Galaxy A36 5G 67Redmi 15 5G 55

The Galaxy A36 5G has the stronger camera system (2 real rear lenses vs 1).

Battery
Galaxy A36 5G 80Redmi 15 5G 100

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

Software longevity
Galaxy A36 5G 68Redmi 15 5G 45

The Galaxy A36 5G is supported until Mar 2031 — 20 months longer than the Redmi 15 5G.

Value
Galaxy A36 5G 66Redmi 15 5G 75

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

Full spec table
SpecGalaxy A36 5GRedmi 15 5G
Price (street)$350$180
Display6.7-inch FHD+ Super AMOLED, 120Hz, 1200 nits6.9-inch IPS LCD, FHD+, 144Hz, 850 nits peak
ChipsetSnapdragon 6 Gen 3Qualcomm Snapdragon 6s Gen 3
RAM6GB/8GB4GB/6GB/8GB
Storage128GB/256GB128GB/256GB
Battery5,000 mAh7,000 mAh
Charging45W wired (charger not included)33W wired, 18W reverse wired
Rear cameras50MP main (OIS), 8MP ultra-wide, 5MP macro50MP main, 2MP depth
Dimensions162.9 × 78.2 × 7.4 mm169.5 × 80.5 × 8.4 mm
Weight195 g217 g
Water resistanceIP67IP64
Supported untilMar 2031Aug 2029
Galaxy A36 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.