OnePlus 13 vs Galaxy S25 Ultra

The OnePlus 13 undercuts the Galaxy S25 Ultra by $400 at the 256GB tier with the same 12GB of RAM in the base configuration. That is roughly a 31% lower price for a phone with the same storage capacity.

The OnePlus has 1,000 mAh (20%) more capacity in a silicon-carbon cell, charges wired at nearly twice the rate (80W versus 45W), and lists over three times the wireless speed (50W versus 15W). The Galaxy keeps reverse wireless charging support, which the OnePlus entry does not list.

Samsung's 200MP sensor captures far more pixels than the OnePlus's 50MP sensor, giving more cropping room in good light. The OnePlus opens slightly wider at f/1.6 versus f/1.7, which affects light intake but does not offset the resolution gap on its own.

Both telephotos are 50MP with optical image stabilization, but the Galaxy uses a periscope design with 5x optical zoom against 3x on the OnePlus. The OnePlus lists a higher 120x maximum zoom, though optical reach — the uncontested part of the range — favors the Galaxy.

Both are 120Hz QHD-class panels of nearly identical size, but the OnePlus is rated 1,900 nits brighter at peak (4,500 versus 2,600). Peak brightness differences matter most in direct sunlight and in HDR highlights rather than in typical indoor use.

Samsung lists 7 years of both OS and security updates, while OnePlus lists 4 years of OS updates and 6 years of security updates. Over a five-year ownership period, the Galaxy keeps receiving full OS upgrades for longer.

The Galaxy uses a titanium frame while the OnePlus uses aluminum, and the two are within 5 g of each other at 213 g and 218 g. Titanium is the more premium frame material; the weight difference is too small to notice in daily use.

The Galaxy S25 Ultra lists satellite connectivity while the OnePlus 13 does not. For travelers or anyone regularly outside cellular coverage, that is a capability the OnePlus simply lacks rather than a difference in degree.

Both phones carry an IP68 rating, and the OnePlus adds an IP69 rating for high-pressure, high-temperature water jets. In everyday rain and submersion scenarios, the practical protection is the same IP68 floor.

Which phone has the better camera?

The Galaxy S25 Ultra has the higher-resolution hardware: a 200MP f/1.7 main sensor, a 50MP f/1.9 ultrawide, and a 50MP f/3.4 periscope with 5x optical zoom and up to 100x maximum zoom. The OnePlus 13 uses a 50MP f/1.6 main sensor, a 50MP f/2.0 ultrawide, and a 50MP f/2.6 telephoto with 3x optical zoom and a listed 120x maximum zoom. Both record 8K at 30fps, and the OnePlus carries a 32MP front camera versus 12MP on the Galaxy.

Which phone has better battery life?

The OnePlus 13 lists a 6,000 mAh silicon-carbon battery against 5,000 mAh on the Galaxy S25 Ultra — 20% more capacity. It also charges faster at 80W wired versus 45W, and 50W wireless versus 15W. Battery life in practice also depends on display size, brightness, and software optimization; these figures are capacities and charging rates from the spec sheets rather than measured runtime.

Which phone is cheaper?

The OnePlus 13 starts at $899 for 256GB with 12GB of RAM, and its 512GB (16GB RAM) tier is $999. The Galaxy S25 Ultra starts at $1,299 for 256GB, with 512GB at $1,419 and 1TB at $1,659. The base-tier gap is $400.

How long will these phones receive updates?

Samsung lists 7 years of OS updates and 7 years of security updates for the Galaxy S25 Ultra. The OnePlus 13 is listed with 4 years of OS updates and 6 years of security updates. Both launched on Android 15 — One UI 7 on the Galaxy, OxygenOS 15 on the OnePlus.

Which phone is more durable?

Both are IP68 rated with glass backs, and the OnePlus 13 adds an IP69 rating for high-pressure water jets. The Galaxy S25 Ultra uses a titanium frame compared with aluminum on the OnePlus, and it lists Gorilla Glass Armor 2 display protection versus Ceramic Guard on the OnePlus. The two weigh 218 g and 213 g respectively.