Galaxy S25 Ultra vs iPhone 16 Pro Max vs Pixel 9 Pro vs OnePlus 13 Ultra: The Ultimate 2025 Flagship Comparison

Every year, the flagship smartphone crown is fiercely contested. In 2025, four titans face off:

Samsung Galaxy S25 Ultra – Premium build, AI-rich One UI, S Pen functionality.
OnePlus 13 – Excellent value, massive battery and charging prowess, IP69 rating.
Google Pixel 9 Pro – AI-optimized camera and software, long-term support.
iPhone 16 Pro Max – Refined iOS experience, top-tier performance and ecosystem.

Let’s dive into how they stack up.

1. Design & Build Quality

Dimensions: 162.8 × 77.6 × 8.2 mm; Weight: 218 g .
Constructed with titanium frame and Gorilla Armor 2 glass, offering both refinement and resilience .
S Pen integrated, though Bluetooth features (like Air Actions) have been removed to save costs .

Slightly thinner and lighter at 162.9 × 76.5 × 8.5–8.9 mm and 210–213 g .
Options include vegan leather or glass backs; the leather variant offers better grip .
Superior waterproofing with both IP68 and IP69—survives high-pressure water jets .

6.9-inch Dynamic LTPO AMOLED 2X, 3120×1440 resolution, 120 Hz adaptive refresh rate .
Gorilla Armor 2 enhances glare reduction under bright conditions .

6.82-inch LTPO AMOLED, 3168×1440 resolution, 120 Hz refresh, Dolby Vision, HDR10+, and a remarkable 4,500 nits peak brightness .
Ceramic Shield glass offers strong protection .

Powered by Snapdragon 8 Elite for Galaxy, custom-co-designed with Qualcomm .
Comes standard with 12 GB RAM (up to 16 GB available in select regions) and UFS 4.0 storage .

Runs the standard Snapdragon 8 Elite with up to 24 GB RAM and UFS 4.0 storage .
More RAM options globally: 16 GB and 24 GB available .

Device	Capacity	Real-World Battery Life	Charging Capabilities
Galaxy S25 Ultra	5,000 mAh	Around 17h 14m	45W wired, 15W wireless (Qi2), 4.5W reverse
OnePlus 13	6,000 mAh (silicon-carbon)	~19h 45m	80–100W wired (in-box), 50W wireless, 5W reverse

Winner: OnePlus 13 excels with a larger, longer-lasting battery and much faster recharge speeds.

Quad-camera setup: 200 MP wide, 50 MP ultrawide, 50 MP periscope (5×), +10 MP telephoto .
AI enhancements like Galaxy AI, Bixby improvements, and integration with Google Gemini elevate usability .
Overall camera output tends to lean toward richer saturation .

Triple 50 MP setup (wide, periscope 3×, ultrawide) .
Produces more natural-toned output; trades blows with S25 Ultra depending on scenario .

Ships with One UI 7 on Android 15, backed by 7 years of updates .
Galaxy AI suite includes features like Now Brief, Now Bar, voice-based task chaining, and more productivity tools .
Offers S Pen and powerful DeX-like convergence capabilities .

Runs Android 15 with OxygenOS / ColorOS, with extended support (4 years feature updates, 6 years security) .
Introduces AI tools like Magic Editor photo features and summary generation—but less extensive than Samsung’s Galaxy AI .

Verdict: OnePlus delivers premium hardware at a significantly more approachable price.

Pixel 9 Pro: Outstanding camera capabilities and long-term software support .
iPhone 16 Pro Max: Refined iOS user experience and ecosystem advantages (not deeply covered here, but remains a strong choice for Apple users).

If you crave AI-powered productivity, stylus integration, and a premium ecosystem—Galaxy S25 Ultra is for you.

If you prioritize battery endurance, durability, and value—OnePlus 13 delivers big, literally and figuratively.

Every flagship has its strengths. Your best match depends on what matters most to your daily life.