ROG Phone 8 vs 15T Pro

Phone 1

Phone 2

Winner

Xiaomi 15T Pro

Lifespan decides this one: the 15T Pro is supported until Sep 2030 at $12.65 per month of safe use, while the ROG Phone 8 runs out in Jan 2029 ($27.25/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: ROG Phone 8 60 · 15T Pro 69 — methodology

The lifespan decider

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

Asus ROG Phone 8 $850

Buy with care$27.25/mo

2024◆ Buy-by Jan 20272029

Xiaomi 15T Pro $650

Safe to buy$12.65/mo

2025◆ Buy-by Sep 20282030

Category by category

Display

ROG Phone 8 8015T Pro 70

The ROG Phone 8's screen is the better one — 6.78-inch ltpo amoled, 1080x2400, 165hz.

Performance

ROG Phone 8 9215T Pro 94

Performance is a wash — same chip tier.

Camera

ROG Phone 8 7915T Pro 79

Camera systems are comparable on paper — pick by sample photos.

Battery

ROG Phone 8 9015T Pro 90

Battery capacities are close enough not to decide this.

Software longevity

ROG Phone 8 3715T Pro 61

The 15T Pro is supported until Sep 2030 — 20 months longer than the ROG Phone 8.

Value

ROG Phone 8 6015T Pro 69

Overall value goes to the 15T Pro at $12.65 per month of safe use.

Full spec table

Spec	ROG Phone 8	15T Pro
Price (street)	$850	$650
Display	6.78-inch LTPO AMOLED, 1080x2400, 165Hz	6.83-inch AMOLED, 2772x1280, 144Hz
Chipset	Qualcomm Snapdragon 8 Gen 3	MediaTek Dimensity 9400+
RAM	12GB/16GB	12GB
Storage	256GB/512GB	256GB/512GB/1TB
Battery	5,500 mAh	5,500 mAh
Charging	65W wired, 15W wireless	90W wired, 50W wireless
Rear cameras	50MP main, 13MP ultra-wide, 32MP telephoto 3x	50MP main, 50MP telephoto 5x periscope, 12MP ultra-wide
Dimensions	163.8 × 76.8 × 8.9 mm	162.7 × 77.9 × 8.0 mm
Weight	225 g	210 g
Water resistance	IP68	IP68
Supported until	Jan 2029	Sep 2030

ROG Phone 8 full verdict →15T Pro 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.