Open vs 13 Ultra

Phone 1

Phone 2

Winner

Xiaomi 13 Ultra

The 13 Ultra wins this one, taking camera and battery decisively. Against the Open it's also the sounder buy at $29.32 per month of safe use.

Value Score: Open 57 · 13 Ultra 62 — 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$31.90/mo

2023◆ Buy-by Oct 20262028

Xiaomi 13 Ultra $650

Buy with care$29.32/mo

2023◆ Buy-by Apr 20262028

Category by category

Display

Open 9013 Ultra 90

Both displays are effectively the same class.

Performance

Open 8513 Ultra 85

Performance is a wash — same chip tier.

Camera

Open 7913 Ultra 91

The 13 Ultra has the stronger camera system (4 real rear lenses vs 3).

Battery

Open 7613 Ultra 80

5,000mAh vs 4,805mAh — the 13 Ultra lasts longer between charges.

Software longevity

Open 3413 Ultra 26

The Open is supported until Oct 2028 — 6 months longer than the 13 Ultra.

Value

Open 5713 Ultra 62

Overall value goes to the 13 Ultra at $29.32 per month of safe use.

Full spec table

Spec	Open	13 Ultra
Price (street)	$900	$650
Display	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	6.73-inch LTPO AMOLED, 3200 x 1440, 120Hz
Chipset	Snapdragon 8 Gen 2	Qualcomm Snapdragon 8 Gen 2
RAM	16GB	12GB/16GB
Storage	512GB	256GB/512GB/1TB
Battery	4,805 mAh	5,000 mAh
Charging	67W SUPERVOOC wired, no wireless	90W wired, 50W wireless
Rear cameras	48MP main, 48MP ultra-wide, 64MP periscope telephoto 3x	50MP main, 50MP ultra-wide, 50MP telephoto 3.2x, 50MP periscope telephoto 5x
Dimensions	Unfolded 153.4 × 143.1 × 5.8 mm; Folded 153.4 × 73.3 × 11.7 mm	163.2 × 74.6 × 9.1 mm
Weight	239 g	227 g
Water resistance	IPX4	IP68
Supported until	Oct 2028	Apr 2028

Open full verdict →13 Ultra 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.