Samsung Galaxy S25 Edge: The Future of Ultra-Thin Flagship Design

By Team Raph Ocean | May 27, 2025 | 16 min read

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The ultra-slim design of the Galaxy S25 Edge sets a new standard in premium smartphones.

In an era where flagship smartphones are getting thicker and heavier, the Samsung Galaxy S25 Edge dares to go against the trend. At just 5.8mm thick, this device proves that slimness and high-end features can coexist beautifully. In this review, we’ll explore how Samsung has achieved the impossible—delivering a full-featured flagship that's thinner than most mid-range phones while maintaining durability, performance, and premium aesthetics.

Design: Engineering Perfection in 5.8mm

The defining feature of the S25 Edge is its unprecedented 5.8mm thickness, making it the thinnest flagship ever released by Samsung. Despite this extreme thinness, the phone maintains an IP68 rating and offers all the functionality users expect from a top-tier smartphone.

Titanium Construction: Strength Without Bulk

At the core of the S25 Edge’s structural integrity is its innovative titanium alloy frame:

Grade 5 titanium used for main frame
Gorilla Glass Ceramic 2 front and back
Internal carbon fiber reinforcement

A side view showcasing the incredibly slim profile of the Galaxy S25 Edge.

This advanced materials science allows Samsung to maintain strength without adding unnecessary weight or girth, setting a new precedent for premium phone builds.

Ergonomic Excellence in a Slim Form Factor

Despite its minimal thickness, the S25 Edge feels comfortable in hand thanks to:

Curved edges for natural grip
Weight distribution optimized for balance
Matt finish options for improved traction

The contoured sides and precise curvature make the phone feel secure and refined, even during extended one-handed use.

Engineering Marvel: What Makes It Possible

Several key innovations made the 5.8mm thickness possible:

Stacked battery design (dual-cell arrangement)
Micro-LED display eliminates backlight layers
Advanced vapor chamber cooling in a flat configuration

Each component has been reimagined to fit within the ultra-slim profile while still delivering flagship-level performance and durability.

Pricing and Availability

The Galaxy S25 Edge starts at:

$1,049 for 256GB
$1,149 for 512GB

It’s available from Samsung, Amazon, and other major retailers.