PhoneLifespan

Pixel 8 vs 15T

vs

It depends

Too close to call outright

These two are within 4 points overall, so it depends on you: keep phones for years → Pixel 8 (supported until Oct 2030); want maximum speed → 15T (MediaTek Dimensity 8400-Ultra).

Value Score: Pixel 8 74 · 15T 70 methodology

The lifespan decider

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

Google Pixel 8 $320
Safe to buy$6.16/mo
2023◆ Buy-by Oct 20282030
Xiaomi 15T $500
Safe to buy$9.73/mo
2025◆ Buy-by Sep 20282030

Category by category

Display
Pixel 8 7015T 70

Both displays are effectively the same class.

Performance
Pixel 8 7015T 78

The 15T's MediaTek Dimensity 8400-Ultra is simply the faster chip.

Camera
Pixel 8 6715T 79

The 15T has the stronger camera system (3 real rear lenses vs 2).

Battery
Pixel 8 7215T 90

5,500mAh vs 4,575mAh — the 15T lasts longer between charges.

Software longevity
Pixel 8 6215T 61

Both phones' support windows end around the same time.

Value
Pixel 8 7415T 70

Overall value goes to the Pixel 8 at $6.16 per month of safe use.

Full spec table
SpecPixel 815T
Price (street)$320$500
Display6.2-inch Actua OLED, FHD+, 60–120Hz, up to 2000 nits peak6.83-inch AMOLED, 2772x1280, 144Hz
ChipsetGoogle Tensor G3MediaTek Dimensity 8400-Ultra
RAM8GB12GB
Storage128GB/256GB256GB/512GB
Battery4,575 mAh5,500 mAh
Charging27W wired, 18W wireless67W wired
Rear cameras50MP main, 12MP ultra-wide50MP main, 50MP telephoto 2x, 12MP ultra-wide
Dimensions150.5 × 70.8 × 8.9 mm163.2 × 78.0 × 7.5 mm
Weight187 g194 g
Water resistanceIP68IP68
Supported untilOct 2030Sep 2030

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