PhoneLifespan

ROG Phone 8 Pro vs Open

vs

It depends

Too close to call outright

These two are within 4 points overall — it genuinely depends on price on the day. The ROG Phone 8 Pro edges both longevity and performance, so prefer it when prices are close.

Value Score: ROG Phone 8 Pro 61 · Open 57 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 Pro $800
Buy with care$25.91/mo
2024◆ Buy-by Jan 20272029
OnePlus Open $900
Buy with care$31.90/mo
2023◆ Buy-by Oct 20262028

Category by category

Display
ROG Phone 8 Pro 80Open 90

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
ROG Phone 8 Pro 92Open 85

The ROG Phone 8 Pro's Snapdragon 8 Gen 3 is simply the faster chip.

Camera
ROG Phone 8 Pro 79Open 79

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

Battery
ROG Phone 8 Pro 90Open 76

5,500mAh vs 4,805mAh — the ROG Phone 8 Pro lasts longer between charges.

Software longevity
ROG Phone 8 Pro 37Open 34

The ROG Phone 8 Pro is supported until Jan 2029 — 3 months longer than the Open.

Value
ROG Phone 8 Pro 61Open 57

Overall value goes to the ROG Phone 8 Pro at $25.91 per month of safe use.

Full spec table
SpecROG Phone 8 ProOpen
Price (street)$800$900
Display6.78-inch flexible LTPO AMOLED (Samsung E6), FHD+ (1080×2400), 1–165Hz, 720Hz touch sampling, 2500-nit peak7.82-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
ChipsetSnapdragon 8 Gen 3Snapdragon 8 Gen 2
RAM16GB/24GB16GB
Storage512GB/1TB512GB
Battery5,500 mAh4,805 mAh
Charging65W wired (HyperCharge), 15W Qi wireless67W SUPERVOOC wired, no wireless
Rear cameras50MP main (Sony IMX890 1/1.56-inch, gimbal OIS), 13MP ultra-wide (120-degree), 32MP telephoto 3x (OIS)48MP main, 48MP ultra-wide, 64MP periscope telephoto 3x
Dimensions163.8 × 76.8 × 8.9 mmUnfolded 153.4 × 143.1 × 5.8 mm; Folded 153.4 × 73.3 × 11.7 mm
Weight225 g239 g
Water resistanceIP68IPX4
Supported untilJan 2029Oct 2028

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