PhoneLifespan

90 GT 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 90 GT runs out in Dec 2027 ($16.58/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 90 GT 69 · 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.

Honor 90 GT $300
Buy with care$16.58/mo
2023◆ Buy-by Dec 20252027
Xiaomi Redmi 15 5G $180
Safe to buy$4.81/mo
2025◆ Buy-by Aug 20272029

Category by category

Display
90 GT 80Redmi 15 5G 70

The 90 GT's screen is the better one — 6.7-inch amoled, 120hz, 2600 nits peak.

Performance
90 GT 85Redmi 15 5G 46

The 90 GT's Snapdragon 8 Gen 2 is simply the faster chip.

Camera
90 GT 67Redmi 15 5G 55

The 90 GT has the stronger camera system (2 real rear lenses vs 1).

Battery
90 GT 80Redmi 15 5G 100

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

Software longevity
90 GT 22Redmi 15 5G 45

The Redmi 15 5G is supported until Aug 2029 — 19 months longer than the 90 GT.

Value
90 GT 69Redmi 15 5G 75

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

Full spec table
Spec90 GTRedmi 15 5G
Price (street)$300$180
Display6.7-inch AMOLED, 120Hz, 2600 nits peak6.9-inch IPS LCD, FHD+, 144Hz, 850 nits peak
ChipsetSnapdragon 8 Gen 2Qualcomm Snapdragon 6s Gen 3
RAM12GB/16GB/24GB4GB/6GB/8GB
Storage256GB/512GB/1TB128GB/256GB
Battery5,000 mAh7,000 mAh
Charging100W wired33W wired, 18W reverse wired
Rear cameras50MP main, 12MP ultra-wide50MP main, 2MP depth
Dimensions161 x 74.2 x 7.9 mm169.5 × 80.5 × 8.4 mm
Weight185 g217 g
Water resistanceNoneIP64
Supported untilDec 2027Aug 2029
90 GT 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.