PhoneLifespan

13T vs Redmi Note 15 5G

vs

Winner

Xiaomi Redmi Note 15 5G

Lifespan decides this one: the Redmi Note 15 5G is supported until Dec 2029 at $6.03 per month of safe use, while the 13T runs out in Sep 2028 ($12.82/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 13T 69 · Redmi Note 15 5G 71 methodology

The lifespan decider

When specs are close, support length decides it — this is what each phone costs per month of safe use.

Xiaomi 13T $350
Buy with care$12.82/mo
2023◆ Buy-by Sep 20262028
Xiaomi Redmi Note 15 5G $250
Safe to buy$6.03/mo
2025◆ Buy-by Dec 20272029

Category by category

Display
13T 70Redmi Note 15 5G 80

The Redmi Note 15 5G's screen is the better one — 6.77-inch amoled, fhd+, 120hz, 3200 nits peak.

Performance
13T 75Redmi Note 15 5G 48

The 13T's MediaTek Dimensity 8200 Ultra is simply the faster chip.

Camera
13T 79Redmi Note 15 5G 67

The 13T has the stronger camera system (3 real rear lenses vs 2).

Battery
13T 80Redmi Note 15 5G 90

5,520mAh vs 5,000mAh — the Redmi Note 15 5G lasts longer between charges.

Software longevity
13T 33Redmi Note 15 5G 49

The Redmi Note 15 5G is supported until Dec 2029 — 14 months longer than the 13T.

Value
13T 69Redmi Note 15 5G 71

Pound for pound, these two are equally good deals.

Full spec table
Spec13TRedmi Note 15 5G
Price (street)$350$250
Display6.67-inch AMOLED, 2712 x 1220, 144Hz6.77-inch AMOLED, FHD+, 120Hz, 3200 nits peak
ChipsetMediaTek Dimensity 8200 UltraQualcomm Snapdragon 6 Gen 3
RAM8GB/12GB8GB
Storage256GB256GB/512GB
Battery5,000 mAh5,520 mAh
Charging67W wired45W wired
Rear cameras50MP main, 12MP ultra-wide, 50MP telephoto 2x108MP main, 8MP ultra-wide
Dimensions162.2 × 75.7 × 8.5 mm164 × 75.4 × 7.4 mm
Weight197 g178 g
Water resistanceIP68IP66
Supported untilSep 2028Dec 2029

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