PhoneLifespan

GT 30 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 GT 30 5G runs out in Aug 2028 ($9.43/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: GT 30 5G 72 · 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.

Infinix GT 30 5G $240
Buy with care$9.43/mo
2025◆ Buy-by Aug 20262028
Xiaomi Redmi 15 5G $180
Safe to buy$4.81/mo
2025◆ Buy-by Aug 20272029

Category by category

Display
GT 30 5G 70Redmi 15 5G 70

Both displays are effectively the same class.

Performance
GT 30 5G 62Redmi 15 5G 46

The GT 30 5G's MediaTek Dimensity 7400 is simply the faster chip.

Camera
GT 30 5G 67Redmi 15 5G 55

The GT 30 5G has the stronger camera system (2 real rear lenses vs 1).

Battery
GT 30 5G 90Redmi 15 5G 100

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

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

The Redmi 15 5G is supported until Aug 2029 — 12 months longer than the GT 30 5G.

Value
GT 30 5G 72Redmi 15 5G 75

Pound for pound, these two are equally good deals.

Full spec table
SpecGT 30 5GRedmi 15 5G
Price (street)$240$180
Display6.78-inch LTPS AMOLED, 1.5K, 144Hz, Gorilla Glass 7i6.9-inch IPS LCD, FHD+, 144Hz, 850 nits peak
ChipsetMediaTek Dimensity 7400Qualcomm Snapdragon 6s Gen 3
RAM8GB4GB/6GB/8GB
Storage256GB128GB/256GB
Battery5,500 mAh7,000 mAh
Charging45W wired33W wired, 18W reverse wired
Rear cameras64MP main, 8MP ultra-wide50MP main, 2MP depth
Dimensions163.7 x 75.8 x 8.0 mm169.5 × 80.5 × 8.4 mm
Weight187 g217 g
Water resistanceIP64IP64
Supported untilAug 2028Aug 2029
GT 30 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.