13 vs Open
Winner
OnePlus 13
Lifespan decides this one: the 13 is supported until Jan 2031 at $14.59 per month of safe use, while the Open runs out in Oct 2028 ($33.63/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.
Value Score: 13 73 · Open 56 — methodology
Who should pick which
Beyond the scores — our take on each phone and the buyer it actually suits.
Discounted to about $779, the OnePlus 13 is the spec heavyweight of the 2025 flagships — a 6,000mAh battery and 100W charging nothing from Apple, Samsung, or Google matches — held back only by a support promise that ends sooner than its rivals'.
Pick it if
- ✓ Battery-life maximalists
- ✓ Fast-charging addicts
- ✓ Spec-per-dollar hunters
Skip it if
- ✗ You keep phones well past five years
- ✗ You want the longest possible support window
OnePlus's only foldable pairs a genuinely usable 6.31-inch cover screen with a flagship-grade camera, and is now far cheaper used.
Pick it if
- ✓ Multitaskers who want a tablet-size inner screen on the go
- ✓ Buyers who disliked the cramped cover screens of older folds
- ✓ Bargain hunters wanting a premium foldable secondhand
Skip it if
- ✗ You need strong water and dust resistance
- ✗ You want wireless charging or the very latest chipset
The lifespan decider
When specs are close, support length decides it — this is what each phone costs per month of safe use.
Category by category
The 13's screen is the better one — 6.82-inch ltpo amoled, qhd+, 1–120hz, up to 4500 nits peak.
The 13's Snapdragon 8 Elite is simply the faster chip.
Camera systems are comparable on paper — pick by sample photos.
6,000mAh vs 4,805mAh — the 13 lasts longer between charges.
The 13 is supported until Jan 2031 — 27 months longer than the Open.
Overall value goes to the 13 at $14.59 per month of safe use.
Frequently asked
Is the OnePlus 13 still supported, and until when?
Yes. From its January 2025 release OnePlus commits to four years of Android OS upgrades and six years of security patches, which means security support runs to January 2031 and major version updates through roughly 2029.
Should I buy the OnePlus 13 or the Samsung Galaxy S25 Ultra?
The OnePlus wins on battery (6,000mAh versus Samsung's smaller cell), charging speed (100W wired versus 45W), and price at around $779. Samsung counters with a longer seven-year update pledge and its S Pen. If longevity is your priority, lean Samsung; if raw hardware and charging matter more, the OnePlus 13 is the better value.
How usable is the OnePlus Open's cover screen?
Very usable. The 6.31-inch outer display has near-normal phone proportions, so you can use the Open closed like a regular phone and only unfold to the 7.82-inch inner screen when you want more space.
Is the OnePlus Open water resistant?
Only partly. It carries an IPX4 rating, meaning it resists splashes and light rain but has no official dust protection and should not be submerged.
Full spec table
| Spec | 13 | Open |
|---|---|---|
| Price (street) | $779 | $900 |
| Display | 6.82-inch LTPO AMOLED, QHD+, 1–120Hz, up to 4500 nits peak | 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 |
| Chipset | Snapdragon 8 Elite | Snapdragon 8 Gen 2 |
| RAM | 12GB/16GB | 16GB |
| Storage | 256GB/512GB | 512GB |
| Battery | 6,000 mAh | 4,805 mAh |
| Charging | 100W wired SUPERVOOC, 50W AIRVOOC wireless | 67W SUPERVOOC wired, no wireless |
| Rear cameras | 50MP main, 50MP ultra-wide, 50MP periscope 3x | 48MP main, 48MP ultra-wide, 64MP periscope telephoto 3x |
| Dimensions | 162.9 × 76.5 × 8.5 mm | Unfolded 153.4 × 143.1 × 5.8 mm; Folded 153.4 × 73.3 × 11.7 mm |
| Weight | 210 g | 239 g |
| Water resistance | IP68/IP69 | IPX4 |
| Supported until | Jan 2031 | Oct 2028 |
More comparisons
Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.