PhoneLifespan

ROG Phone 8 vs 13

vs

Winner

OnePlus 13

Lifespan decides this one: the 13 is supported until Jan 2031 at $14.21 per month of safe use, while the ROG Phone 8 runs out in Jan 2029 ($27.24/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: ROG Phone 8 60 · 13 74 — 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$27.24/mo
2024◆ Buy-by Jan 20272029
OnePlus 13 $779
Safe to buy$14.21/mo
2025◆ Buy-by Jan 20292031

Category by category

Display
ROG Phone 8 8013 100

The 13's screen is the better one — 6.82-inch ltpo amoled, qhd+, 1–120hz, up to 4500 nits peak.

Performance
ROG Phone 8 9213 98

The 13's Snapdragon 8 Elite is simply the faster chip.

Camera
ROG Phone 8 7913 79

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

Battery
ROG Phone 8 9013 100

6,000mAh vs 5,500mAh — the 13 lasts longer between charges.

Software longevity
ROG Phone 8 3713 65

The 13 is supported until Jan 2031 — 24 months longer than the ROG Phone 8.

Value
ROG Phone 8 6013 74

Overall value goes to the 13 at $14.21 per month of safe use.

Full spec table
SpecROG Phone 813
Price (street)$850$779
Display6.78-inch LTPO AMOLED, 1080x2400, 165Hz6.82-inch LTPO AMOLED, QHD+, 1–120Hz, up to 4500 nits peak
ChipsetQualcomm Snapdragon 8 Gen 3Snapdragon 8 Elite
RAM12GB/16GB12GB/16GB
Storage256GB/512GB256GB/512GB
Battery5,500 mAh6,000 mAh
Charging65W wired, 15W wireless100W wired SUPERVOOC, 50W AIRVOOC wireless
Rear cameras50MP main, 13MP ultra-wide, 32MP telephoto 3x50MP main, 50MP ultra-wide, 50MP periscope 3x
Dimensions163.8 × 76.8 × 8.9 mm162.9 × 76.5 × 8.5 mm
Weight225 g210 g
Water resistanceIP68IP68/IP69
Supported untilJan 2029Jan 2031
ROG Phone 8 full verdict →13 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.