Samsung Galaxy S25 Ultra Full Specs, Features & First Impressions

Summary Table: Key Specs at a Glance

First Look: Samsung Galaxy S25 Ultra

You pick it up, and—bam—it’s impressively light for how much it packs. At 162.8 × 77.6 × 8.2 mm and 218 g, the S25 Ultra is thinner and lighter than the S24 Ultra, yet it keeps its screen size at a stately 6.9 inches . The titanium frame with second-gen Gorilla Glass Armor 2 front and back gives it that blend of luxury and durability—yet it never feels like a brick.

That screen? Pure eye candy. A Dynamic AMOLED 2X, 1440×3120 QHD+, with an adaptive 1–120 Hz refresh rate, and a peak brightness of 2,600 nits. Colors pop, scrolling is silky smooth, and outdoor visibility…you barely even need to shade it . Fancy anti-reflective coating, too.

Under the Hood: Powerhouse Central

Inside, Samsung crammed in the Snapdragon 8 Elite “for Galaxy” chip—fabbed on 3 nm, delivering about +37% CPU, +30% GPU, and +40% NPU boost over last year’s chip . And they didn’t stop there—they beefed up the vapor chamber cooling system by around 40%, so it runs cool even under marathon gaming sessions.

You get 12 GB RAM and a choice of 256/512 GB/1 TB storage (UFS 4.0). Some markets even offer 16 GB RAM, though mostly it ships with 12 GB . Android 15 with One UI 7 rolls out of the box, and Samsung splashed out on 7 years of OS/security updates—crazy long for Android.

Camera: Mega-Resolution, Mega-Features

Samsung’s quad-camera is back—but this time supercharged:

• 200 MP main wide (f/1.7, OIS, PDAF)
• 50 MP ultra-wide (new sensor, 120° FOV)
• 50 MP periscope telephoto (5× optical zoom, OIS)
• 10 MP telephoto (3× optical zoom, OIS)
• 12 MP selfie cam (with 4K/8K video)

The real star? The ultra-wide upgrade—a proper 50 MP sensor now, grabbing sharp shots even in low light. Video buffs will love the ProVisual Engine—it smooths motion, sharpens detail, reduces blur, and handles log video, Audio Eraser, Virtual Aperture—you name it.

Basically, you’ve got a mini film studio in your pocket. Zooming? Up to 100× digital, though 5× telephoto is where clarity stays tight.

Galaxy AI: Smarter Every Year

One UI 7 brings all sorts of slick AI tools:

• Circle to Search snags text, phone numbers, or images for fast context-based actions .
• Now Bar & Now Brief panels keep your calendar, alerts, lives, or shortcuts at your fingertips without unlocking .
• Galaxy AI agents can parse text, voice, images—even video—right on-device .
• You even get Gemini integration for chat, summarizing videos, or handling docs effortlessly .
• Bonuses include call transcripts, AI writing help, cross-app follow-ups—probably the slickest AI suite on any Android phone today.

Feels more like a coworker than a phone.

Battery & Charging: Solid Not Shocking

Samsung held steady with a 5,000 mAh battery. But thanks to chip and software improvements, you can squeeze an extra hour or two of typical screen-on time compared to last year. Samsung claims about 31 hours of video playback.

Chargers are sold separately. Plug in a 45 W USB‑C PD, and it’ll hit ~65% in 30 minutes. You also get 15 W wireless charging (Qi2) and 4.5 W reverse wireless . Not blazing fast, but reliable.

S Pen: Stylus Simplicity

The S Pen is still included—it docks inside the phone—but now it’s passive only. So no Bluetooth gestures or remote camera trickery. Samsung says it was a niche feature; power users might miss it, though . It’s still great for notes or doodles, but the flair’s gone.

Durability: Built to Brave Drops

Titanium frame, Gorilla Armor 2 front/back, and an IP68 rating—this phone’s ready for the real world. Drops? Splashes? No biggie.

Pros & Cons: Real Talk

• What hits the mark: Massive, clear display; powerhouse chip; cameras that rival standalone cams; Galaxy AI + Gemini is killer; long update support; premium build.
• What leaves you meh: No stylus Bluetooth features; battery not bigger; charging speed is solid but not breakneck; price is starting at ~$1,299.

Bottom Line: Who Should Get It?

If you’re on the hunt for top-end hardware, AI-driven tools, pro-caliber camera systems, and a phone built to last years—this is one of the best. It’s not just about flex; it delivers.

Are you already on the S24 Ultra? You’ll see incremental upgrades—bigger ultra-wide sensor, better AI, a few performance gains. But for those lagging a few generations behind, or craving bleeding-edge tech, the S25 Ultra is a beast.

For stylus fans, you’ll miss Bluetooth sprinkle, but for everyone else, it’s still a premium pen experience.

Final Words

Think of the Galaxy S25 Ultra as Samsung’s way of showing off all that it has: with a glossy titanium body, a ridiculously huge screen, mind-melting cameras and telepathic AI. It’s not small, it’s not cheap, but it’s Alexa-level intelligent, peer-proof durable, and likely among the smartest phones you can buy today.

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