Samsung Galaxy S25 Edge vs Xiaomi 15

Samsung Galaxy S25 Edge

Samsung

7.5

Good

Xiaomi 15

Xiaomi

7.8

Good

What Reviewers Agree On

The 5.8mm design is genuinely stunning and a remarkable engineering achievement
Main camera (200MP) performs well despite the thin chassis constraints
Snapdragon 8 Elite delivers excellent day-to-day performance
The display is beautiful — 6.7-inch Dynamic AMOLED 2X at its finest
Build quality and premium materials justify the flagship positioning

Deal Breakers

No telephoto camera — only ultrawide and main sensors at a flagship price
3,900mAh battery is significantly smaller than competitors and may not last a full day for power users

Detailed Comparison

Design & Build

Samsung Galaxy S25 Edge

The S25 Edge's raison d'être is its design. At 5.8mm thin and 163g, it's remarkably light and slim in a way that genuinely surprises when you first pick it up. The titanium frame and Gorilla Glass Victus 2 maintain Samsung's premium build standards.

At 5.8mm, it's breathtakingly thin — a genuine head-turner that feels like holding a concept device
Titanium frame provides structural rigidity despite the extreme thinness
The ultra-thin profile means compromises in battery, thermals, and camera module that impact daily use
Nobody asked for thin phones — consumers want better battery life, not thinner devices

Xiaomi 15

A premium compact flagship at 152.3 x 71.2 x 8.08mm and 191g with an aviation-grade aluminum frame and IP68 water resistance. It looks and feels genuinely premium, though several reviewers noted it's almost identical to the Xiaomi 14.

One of the most comfortable compact flagships to hold — 191g with excellent in-hand ergonomics

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What Reviewers Agree On

One of the best compact Android flagships available in 2025
Battery life is a major upgrade over the Xiaomi 14 — excellent endurance from the 5,400mAh cell
Snapdragon 8 Elite delivers top-tier performance for daily tasks and gaming
Main Leica camera produces excellent photos with natural color science
Design is premium but very iterative over the Xiaomi 14

Deal Breakers

Thermal throttling under sustained loads — phone gets uncomfortably hot during extended gaming
Not available in the US — import prices eliminate the value advantage
Ultrawide camera quality is noticeably poor compared to main and telephoto lenses

Display

Samsung Galaxy S25 Edge

The 6.7-inch Dynamic AMOLED 2X display maintains Samsung's display excellence. It's the same panel technology found in the S25+, delivering vibrant colors, deep blacks, and smooth 120Hz scrolling.

Display quality is flagship-excellent — Samsung hasn't compromised on screen quality for the thin design
2,600 nits peak brightness ensures excellent outdoor visibility
The thin bezels and edge-to-edge design make the display feel even more immersive

Xiaomi 15

The 6.36-inch 1.5K LTPO OLED is sharp, vibrant, and incredibly bright at 3,200 nits peak (tested up to 3,593 nits HDR). Ultra-narrow 1.38mm bezels and high-frequency PWM dimming above 3,000Hz round out an excellent display package, though OLED smear at lower brightness is a noted concern.

Peak brightness tested at 3,593 nits in HDR — among the brightest compact phone displays available
Ultra-narrow 1.38mm bezels with excellent color accuracy in Original Color PRO profile
OLED smear visible at lower brightness levels (0-70% range) — a recurring user complaint

Battery Life

Samsung Galaxy S25 Edge

Battery life is the Edge's Achilles' heel. The 3,900mAh cell is notably smaller than competitors, and while the efficient Snapdragon 8 Elite helps, power users will struggle to get through a full day.

3,900mAh battery is a real concern — heavy users will need to charge by mid-afternoon
Light to moderate users can get through a day, but there's no room for complacency
The thin design forced Samsung to sacrifice the one thing consumers actually want more of: battery
45W charging helps recover quickly, but you'll be using it more often than with other flagships

Xiaomi 15

A standout category for the Xiaomi 15. The 5,400mAh silicon-carbon battery is a huge upgrade from the Xiaomi 14's 4,610mAh, delivering 16+ hours of active use in GSMArena's tests and consistently 7-8 hours of screen-on time. 90W wired charging goes from 0-100% in about 50 minutes.

GSMArena Active Use Score of 16:28 hours — excellent endurance for a compact flagship
5,400mAh silicon-carbon battery is a massive upgrade from the Xiaomi 14's 4,610mAh — real-world 7-8 hours SOT
90W wired charging does 0-100% in about 50 minutes; 50W wireless charging also supported