PhoneLifespan

Open vs 15T Pro

vs

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 Open runs out in Oct 2028 ($31.91/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Open 57 · 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.

OnePlus Open $900
Buy with care$31.91/mo
2023◆ Buy-by Oct 20262028
Xiaomi 15T Pro $650
Safe to buy$12.65/mo
2025◆ Buy-by Sep 20282030

Category by category

Display
Open 9015T Pro 70

The Open's screen is the better one — 7.82-inch 2k ltpo3 fluid amoled inner foldable (2440×2268, 426 ppi) + 6.31-inch 2k amoled cover (2484×1116, 431 ppi), both 120hz, up to 2800 nits peak.

Performance
Open 8515T Pro 94

The 15T Pro's MediaTek Dimensity 9400+ is simply the faster chip.

Camera
Open 7915T Pro 79

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

Battery
Open 7615T Pro 90

5,500mAh vs 4,805mAh — the 15T Pro lasts longer between charges.

Software longevity
Open 3415T Pro 61

The 15T Pro is supported until Sep 2030 — 23 months longer than the Open.

Value
Open 5715T Pro 69

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

Full spec table
SpecOpen15T Pro
Price (street)$900$650
Display7.82-inch 2K LTPO3 Fluid AMOLED inner foldable (2440×2268, 426 ppi) + 6.31-inch 2K AMOLED cover (2484×1116, 431 ppi), both 120Hz, up to 2800 nits peak6.83-inch AMOLED, 2772x1280, 144Hz
ChipsetSnapdragon 8 Gen 2MediaTek Dimensity 9400+
RAM16GB12GB
Storage512GB256GB/512GB/1TB
Battery4,805 mAh5,500 mAh
Charging67W SUPERVOOC wired, no wireless90W wired, 50W wireless
Rear cameras48MP main, 48MP ultra-wide, 64MP periscope telephoto 3x50MP main, 50MP telephoto 5x periscope, 12MP ultra-wide
DimensionsUnfolded 153.4 × 143.1 × 5.8 mm; Folded 153.4 × 73.3 × 11.7 mm162.7 × 77.9 × 8.0 mm
Weight239 g210 g
Water resistanceIPX4IP68
Supported untilOct 2028Sep 2030
Open 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.